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HomeMy WebLinkAboutGROUNDWATER STUDY NORTH BLUFFS*NEW FILE* GROUNDWATER STUDY NORTH BLUFFS 4 ��W PoR1 0 0 m� Department of Community Development c�CIFA RNP DATE: March 22, 1979 TO: R. V. Hogan, Director FROM: Fred Talarico SUBJECT: Bluffs Groundwater Study Cost Overruns. Pursuant to your request, this is a breakdown of costs and services applicable to James M. Montgomery's final billing for the Bluffs Groundwater Study. Item j. Right-of-way negotiations 5 man days $1500 - approved 2/20/79 Item 2. Expansion of study area 2.66 man days 800 - approved 2/20/79 Item 3. Additional well and equip. 2 man days 600 - approved 2/20/79 Item 4. Printing additional reports .5 man days 150 - approved 2/20/79 Item 5. Evaluate new meter data 2 man days 600 - approved 2/20/79 Item 6. Report expansion 3 man days ?00 Item 7. Geologic hazards report 3 man days 9410 18.16 $5450 Additional costs: Item 3: $900 for Peizometer (Congress, Davis, Dixon) Item 4: 368.32 printing costs 5.44 mileage 25.56 telephone $1299.32 Item V. It was determined at the meeting on 2/20/79, that additional discussion with Joe Devlin was necessary before final approval of these charges ($600). Item 7. Prior to approval of these charges ($900), James Evans was to have met with Carl Weib'e to discuss the geologic hazards report. By breaking the cost per man day down on an item by item basis, there is a minor difference of $38 from Invoice No. 15377 submitted by James M. Montgomery. This could be attributed to their rounding off of charges. r alarico FT/ dt law DAMES M. MONTGOMERY,. CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714� ) March 16 1979 S tzEn'''vt �gV6tOl�IT1 WATER RESOURCES DIVISION pa (AJ .�y KARLILWIEDE FRED K. DUREN, IR. 9 1g 19 RONALD L. DARTO GEOROE CURTIN Mr. Fred Talarico RODERT H. RAMSEY City of Newport Beach W90?"V pcNl City Hall 3300 Newport Blvd. Newport Beach, California 92663 Dear Mr. Talarico: Resulting from our recent discussions with Mr. Hogan and Planning Department personnel, we have prepared a final invoice for work performed to complete the Bluffs Ground Water Study. As agreed in our meeting of February 20, 1979, the items of work which were outside our original contract and the associated additional costs are detailed below: Item 1 Right of Way Negotiations. Our contract with the City of Newport Beach dated January 5, 1978, stated in part that; "the City of Newport Beach will provide all necessary site entry and right of way permits". The City ,provided minimal assistance and thus, considerable additional effort was required by Montgomery personnel in order to obtain the necessary permits. The various permits were finally obtained after some 14 weeks of,meetings, telephone conversations and much written correspondence on Montgomery's part. We estimate that 5 man -days or $1,500(a) were required and expended for this additional work item. Item 2 'Expansion of Study Area. In order to fully evaluate the source, occurrence and movement of ground water through the Bluffs, the study area was necessarily increased by about 13 percent. This expansion required collection and evaluation of additional data. We estimate about 2 to 3 man -days or about $800 was required and expended for this additional work. Item 3 Ad'di Well and Permanent` Mon'i't'or'ihq' Network. The project was originally budgeted for 10 exploration holes. However, one additional hole was drilled to provide needed information in the eastern part of the study area. In addition, all bore holes were equipped with PVC casing, protective caps and traffic cover vaults to provide a permanent Monitoring Network. The costs associated with this item include 2 additional man -days plus additional costs on the part of Converse Davis Dixon, which were not originally budgeted. The additional fee for this item is estimated to be $1,500. Item 4 Additional Report Printing Requirement. The City requested the printing of additional copies of the Bluffs Study report. The costs for this item included $368.32 for printing charges plus 1/2 man -day for preparation, pick-up and delivery, or $518.32. (a)Average Billing Rate is $300/man-day. P-L A N N I N G ... R E S E A R C H ... E N V I R O N M E N T A L E N G I N E E R I N G • JAhIEB M. MONTGOMERx CONBt]LTIItG ENGngsE s, INC. 17802 Sky Park Crrc*de 201. Irvine, Celllornta 92707/ (714) 979.8733 Mr. Fred Talarico City of Newport Beach Item 5 Evaluation of Ne ,Subsequent to printing o data was located by the evaluated by Montgomery, number of tables within that 2 man -days of work tasks in this item. The -2- March 16, 1979 P'reViousl'V Unavailable Meter Data. f the final report some new water meter City. This new data was tabulated and and required complete revision of a the printed final report. It is estimated were required to complete the various additional cost is $600. Item 6 Report Expansion. After printing of the final report, considerable concern was expressed by the City about certain sections of the report. At the City's request these sections were revised and expanded. The additional amount of time required to complete this item was 3 man -days or $900. Item 7 Geologic Hazard's Evaluation. our contract with the City was to evaluate the source, occurrence and movement of ground water through the Bluffs area. There was no mention in the contract of the evaluation of Geologic Hazards. From the outset of the project, the City placed considerable emphasis on the geologic hazards and potential for damage resulting from high ground water. To treat these concerns, the geologic hazards were evaluated and an additional section entitled "Geologic Hazards and Remedial Measures" was written into the report. The additional time required to complete this item was about 3 man -days or $900(b). As detailed above, the additional work performed by Montgomery was outside our original Scope of Work. In accordance with our contract, we are requesting payment for some of these additional services. The attached invoice represents our final billing and includes labor changes and direct expenses incurred by Montgomery while completing the Bluffs Ground Water Study. If there are any further questions, or may require, please let us know. Your action concerning this matter will be Very truly yours 11�N/• V `G Robert H. Ramsey Project Engineer /ncy information which you attention and favorable greatly appreciated. (b)These items were discussed in detail with Mr. James Evans on March 5, 1979. sipa-U-1 JAME9 M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714/(714) 979-8733 City of Newport Beach City Hall 3300 Newport Blvd. Newport Beach, California 92663 Attention: Fred Talarico DATE: March 16, 1979 INVOICE NO: 15337 CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of July 29 to August 28, 1978, for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $ 2,838.22 Plus 125% 3,547.78 Mileage 5.44 Telephone Charges 25.56 Reproduction Charges 368.32 Total Amount Due $ 6,785.32 PLEASE NOTE: This is an invoice for professional services and due upon presentation. A charge of three quarters of one percent (3/4%) per month will be added to past due accounts. JAMES M. MOiVTGOMERY,, CONSULTING ENGINEERS, INC 17802 Sky Park Circle, Suite 201, Irvine, California 92714/ (714) 979-8733 March 13, 1979 Mr. Fred Talarico City of Newport Beach City Hall 3300 Newport Blvd. Newport Beach, California 92663 Dear Mr. Talarico: Relative to our recent studies in prepared a revised invoice which Invoices No. 11698 and 12270. WATER RESOURCES DIVISION KARLH. WIEDE ERED K. DUREN, JR. RONALDL.DARTO GEORGECURTIN ROBERT H. RAMSEY the Bluffs Area, we have supersedes Montgomery's The revised invoice is for engineering services rendered during the period from May 28, 1978 to July 29, 1978, for the Bluffs Ground Water Investigation. With this billing, the total amount invoiced to the City is $26,200. A break- down of the amounts invoiced and payments received is shown below: Invoice Amount of Date No. Invoice 3/15/78 10047 $ 2,607.86 4/11/78 10347 3,466.22 5/15/78 10985 1,509.15 6/13/78 11289 5,735.50 (8/11/78 12270 12,019.68)* 3/12/79 15134 12,881.27 Invoice Total $26,200 Payments $ 61074.0812 13 7,583.23 ' ' 5,735.50 6,807.19 Date Received Remarks 5/9/78 Ck. #39152 6/19/78 Ck. #40107 7/31/78 Ck. #41629 9/22/78 Ck. #43006 $26,200 (payment total) *Superseded by revised invoice No. 15134. Subsequent to the completion of our discussions with Mr. Hogan, we will submit a final invoice detailing the additional fees earned during the conduct of the Bluffs study. It is hoped that this letter and the enclosed invoice will clarify your questions concerning our August 11, 1978 billing. If you encounter any additional problems relative to fees and payments on this project, please do not hesitate to call. Very truly yours, ,TAMES M. MONNTTGGOMERY, Cor;s�l� N• Engine Inc. Robert H. Ramsey Project Engineer /ncy 7 E o S R6om; �t Go kQQ Cy19 P L A N N I N G ... R E S E A R C H ... E N V I R ON MEN TA L E N G I N E JAMES M. MC>MTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714/(714) 979.8733 City of Newport Beach City Hall 3300 Newport Boulevard Newport Beach, California 92663 Attention: Mr. Fred Talarico DATE: March 12, 1979 INVOICE NO: 15134 CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period May 28, 1978 to July 29, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $ 636.43 Plus 125% 795.53 $ 1,431.96 Mileage 90.27 Telephone toll charges 24.50 Reproduction charges 1,388.00 Laboratory charges 1,140.00 Travel expenses 9.35 Equ#imnt/Supply 7.75 Outside services 8,789.44 'Total Amount Due $12,881.27 NOTE: This invoice supersedes Montgomery's Invoices No. 11698 and No. 12270. PLEASE NOTE: This is an invoice for professional services and due upon presentation. A charge of three quarters of one percent (3/4%) per month will be added to past due accounts. JAMBS M. MONTGOMERY, CONSULTING BNGINEBRS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796.9141/(213) 681-4255 City of Newport Beach City Hail 3300 Newport Boulevard Newport Beach, California 92663 Attention: Ms. Beverly D. Wood DATE: July 13, 1978 INVOICE NO: 11698 CONTRACT NO:40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of May 28, 1978 to July 1, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs Plus 125% Mileage Telephone toll charges Reproduction charges Travel expenses Laboratory charges Equipment/Supply Current Charges Amount Overpaid June 1978 ($6,074.08) June Charges a--- 6,508.50 -- Amount Due and Unpaid Total Amount Due $2,784.00 3,480.00 $6,264.00 90.27 10.12 966.04 9.35 1,140.00 7.75 $8�3 434.42 — $8,921.95 RECEIVED Con, 'u nity '� Deveicprnent Dept. JUL2 7 1978► CITY OF NEWPORT BEACH, CALIF. J PLEASE NOTE: This is an invoice for professional services and due upon presentation. A charge of three quarters of one percent 04%) per month will be added to past due accounts. EWPO PURCHASE ORDER Nu. 11579 na.rafcc Im ouw. cwrc e CITY OF NEWPORT BEACH � R� A ,� ftuagr Y � BKtFlgpy sroTSG8s. 91LL940F U MCIM 3300 N EWPO R T BOULEVARD ®rw PACKeKFResla aecetFrs NEWPORT BEACH, CALIFORNIA 92663 �. _ VITUVERr r CKEra 9Nsf.t_ - C P PHONE: (714) 640-2291 an .A.Um afrFRfcE. � - 9�iFOaNt DATE June 30, 1978 VENDOR DEPT. CORIII. Dev Jaries M. Montnanery, Inc. C 17 02 Sky Park Circle Suite 201 SHIP TO (SANI E UN LESS 0T, l E R W 15e NOTE D) Irvine, Ca. 92714 To conduct a study of Groundwater conditions in the Bluffs Per Contract MOT TO EXCEED Alreadv paid `/3/76 Inv. 10047 -2607.86 Inv. 10346 -3466.22 C/16/73 Inv. 10985 _-75.93.23- Balance 12,542.69 9 9 RVFO S COmm�nityetop �1g7 8► '� u9 A Gof b P�gS eFJ+CN• /j . c? C 1997 P ^254- IMPORTANT Q2299715� <. t �3�. f9 The Articles covered by this Purchase Order or Contract must CITY OF NEWPORT BEACH _. conform to applicable Cal —OSHA Standards, and/or other,-- - - - appropriate laws, regulations, rules, and codes of the.. Federal �..^- - Government and the State of California. • - - Show as a separate item any retail sales tax, use tax or Federal - - - tax applicable to this purchase. - Thisorder subject to California sales tax.. D. W. MEANS PURCHASING AGENT ' All allowable transportation charges must be prepaid and shown - as a separate item on the invoice. Do not include Federal trans- portation tax. 9 l DEPARTMENT COPY r • f CITY OF NEWPORT BEACH DEMAND FOR PAYMENT Demand of: James M. Montgomery Address: 555 East Walnut Street Pasadena, California 91101 In the amount of $ 6, 807.19 September 14, 1978 ITEM OF EXPENDITURE BUDGET # AMOUNT Professional engineering services re Bluffs Groundwater Stud Invoice No. 12270 - Contract 40.0600 02-.2997-158 TOTAL $6,807.19 i ice• i Audited an pproved:" Finance Director ROUTE SLIP Date Vzf/ej& c o v -r 4J C ro4� o m 5- c wE sue. Initials -r 4• O 4- -r E > O 7 4- Ql r u Q c H NU cu K r lL Director ssist,Dir.- Plannin ssist.Dir.- Buildin v.P an Ad in. Director's Secretary 807. ig COMMENTS: JAlml fticlr,� 1u��71o2_.y�tu�'`-_ .f�. 4 / / From �J JAMMS M. M0NTG0M6RY, CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796.9141/(213) 681-4255 City of Newport Beach DATE: August 11, 1978 City Hall 3300 Newport Boulevard Newport Beach, California 92663 INVOICE NO. 12270 Attention: Ms. Beverly D. Wood CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of July 2, 1978 to July 29, 1978 for the investigation of the source, occurance and movement of ground water in the Bluffs Study area. Salary Costs Plus 125% Telephone Toll Charges Reproduction Charges Outside Services: Converse -Davis Dixon Associates (Invoice Enclosed) Current Charges Amount Previously Invoiced But Unpaid As Of This Date Total Amount Due $ 793.80 992.25 $ 1,786.05 14.38 1,429.81 8,789.44 �$12 019.68 2,877.76 Z $14,897.44 /9 RECE! ^ED 4 E`NPCIil.14�ACH.� This is an invoice for services and due upon presentation. A charge of Anaheim ' INVOICE Pasadena Ge01e6% cal Consultlin J San Francisco Las VeSu zzSB DAMS DIXON ASSOCIATES Seattle N9 A 0927 1440 So. State College Blvd., Box 6288, Anaheim, Ca. 92806 • (714) 772.2151 • (213) 681-1121 ACCOUNT NO. 78-2188-08 DATE: June 15, 1978 James M. Montgcarezy 17802 Sky Park Circle, Suite 201 _ Irvine, California 92714 IEi O �C S A�RsEE D�w�Wll FchaRENDERED. ENDrged nRn .visservice vice 30 charge dafs from invoice dPer ate. Geatec3z11i services for drilling, peizomter installation and technical 2 JUne 13, 1978. Billing FOR PROFESSIONAL SERVICES: �c reported Jurie and consultations for-Nedport Bluffs Ground Water study ie13f197 installa- Added cost due to increased p in aocordanoe with ag It dated May 1, 1978. requeStdd and approved by Mr. K. H. Tbibe. tioa and preparation of finish logs as $ 30.60 Talical Typing 1.7 hrs. at $18.......... $18.00/hr00/hr ..... ........... 18.00 Junior Technician 1.0 hrs. at ....... 10.0 hrs. at $22.00/hr ................ 220.00 Draftsmen F/L Technician 4.4 hrs. at $24.00/hr ................ 105.60 1,920.00 .0 hrs. at $30.00/ r ................ 4h Staff StaEngineer/Geologist 6.0 $50.00/hr 50.00 Principal Da#neer hrs. at ................ 33.0 hrs. at $55.00/hr ................ 1,815.00 4,626.95 Chief Geologist E Iloration ... 3.29 y{._ i.St��PT14PR ..... ...............••......... other $8,789.44 Total .......... `(. > «. k • a CITY OF NEWPORT BEACH DEMAND FOR PAYMENT July 6, 1978 Demand of: James M. Montgomery Address: 555 East Walnut Street Pasadena, California 91101 In the amount of $5,735.50 ITEM OF EXPENDITURE BUDGET # AMOUNT For professional services rendered from 5/l/78 to 5/27/78 re groundwater stud in Bluffs area 02-2997-158 Invoice No. 11289 Contract No. 40.0600 TOTAL $5,735.50 Audited and Approved: Finance Director DAMES M. MONTGOMHRY, CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796.9141/(213) 681-4255 City of Newport Beach City Hall 3300 Newport Boulevard Newport Beach, California 92663 Attention: Ms. Beverly D. Wood DATE: June 13, 1978 INVOICE NO: 11289 CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering Services rendered during the period of May 1, 1978 to May 27, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $ 2,384.81 Plus 125% 2,981.01 $ 5,365.82 . Mileage Charges 25.84 Telephone Toll Charges 15.41 Reproduction Charges 82.94 Laboratory Charges 244.00 Equipment/Supply 1.49 ' Current Charges 5,735_50 Amount previously invoiced but unpaid as of this date 7,583.23 Total Amount Due . 13,318.73 REe �`G JUjl 7978�, NEWPORrOF CAGE EACH, PLEASE NOTE: This is an invoice for thrnn of nno norrnnr IA v services and due upon presentation. A charge of ,+h he .,IAM to nne+_Anp_accnl ints CITY OF NEWPORT BEACH DEMAND FOR PAYMENT Date June 2, 1978 Demand of: James M. Montgomery Consulting Fngineers, Inc. Address: 555 East Walnut Street, Pasadena California 91101 In the amount of $ 7,583.23 ITEM OF EXPENDITURE BUDGET # AMOUNT For professional engineering services 4/2/78 - 4 29/78 - Groundwater study in Bluffs Area 02-2997-158 Inoivice No. 10985 - Contract No: 40.0600 A.. erl Cnv. D�vm6n�F} TOTAL $7,583.23. Audited an Finance Director h 0 • JAMES M. MONTGOMERY, CONGUL-rING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796.9141/(213) 681.4255 City of Newport Beach DATE: May 15, 1978 City Hall 3300 Newport Boulevard Newport Beach, California 92663 INVOICE NO: 10985 Attention: Ms. Beverly D. Wood CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of April 2, 1978 to April 29, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $ 580.35 Plus 125% 725.44 $1,305.79 Mileage Charges 2.55 Reproduction Charges 40.46 Travel Expenses 21.00 Equipment/Supply 139.35 Current Charges R1_Y, ,_0Q_..?� Amount previously invoiced but unpaid as of this date 6,074. M Total Amount Due $7,583.23r 2'" `i-%e R� S Aeve. i llD b ne e - MAY � '2 2 1978to, \NFWPORTgp cauF.�CN, PLEASE NOTE: This is an invoice for professional services and due upon presentation. A charge of three quarters of one percent (3/4%) per month will be added to past due accounts. CITY OF NEWPORT BEACH DEMAND FOR PAYMENT April 24, 1978 Demand of: James M. Montgomery Address: 555 East Walnut Street Pasadena, California 91101 In the amount of $a _ 466.92 ITEM OF EXPENDITURE BUDGET # AMOUNT Professional engineering services - 2/26/78 to 4/1/78--Groundwater Study - Bluffs Area Invoice No. 10346 - Contract No. 40.0600 02-2997-158, 11 ..........n.l Cnv. .DS.morl+• TOTAL $3,466,2 Finance Director ROUTE SLIP Date C o v •r 4J C M 4J C o m E i C 3 ai wE C $- Initials r + O 4- •r E > O 7 N r U Q C H N U Ce (u K r u- Di rector qn From — N . w • • JAMMS M. MONTGOMHRY, CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796-9141/(213) 681-4255 City of Newport Beach DATE: April 11, 1978 City Hall 3300 Newport Boulevard Newport Beach, California 92663 INVOICE NO: 10346 Attention: Ms. Beverly D. Wood CONTRACT NO: 40.0600 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of February 26, 1978 to April 1, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $1,227.21 Plus 125% 1,534.01 $2,761.22 Mileage 34.51 Reproduction charges 54.99 Miscellaneous costs 15.00 Travel expenses 9.50 Laboratory charges 586.00 Equipment/Supply 5.00 Current Charges $3,466.2? Amount previously invoiced but unpaid as of this date 2,607.86 Total Amount Due $6,074.08 . �n �� (tr'—I�APRZO IVED 777 undy�:-4e pment /�'pt. 1978o- CITY OF NEWPCALIF.ORT �CH, ti PLEASE NOTE: This is an invoice for professional services and due upon presentation. A charge of three quarters of one percent (3/4%) per month will be added to past due accounts. CITY OF NEWPORT BEACH DEMAND FOR PAYMENT Date April 17, 1978 Demand of: James M. Montgomery, Consulting Engineers, Inc. Address: 555 East Walnut Street Pasadena, California 91101 In the amount of $ 2,607.86 ITEM OF EXPENDITURE BUDGET # AMOUNT. Professional services - January 29, 1978 to February 25, 1978 - Ground water Study in Bluffs area. Invoice No. 10047 - Contract No. 40.0060 02-807-03 A nnnnverl Cnn Dwmvrnt• TOTAL $2,607.86 — — uepar Audited and_Approved: Finance Director 111m whki-.1 O DAMES M. MONTGOMHRY, CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101/(213) 796-9141/(213) 681.4255 City of Newport Beach DATE: March 15, 1978 City Hall 3300 Newport Boulevard Newport Beach, California 92663 INVOICE NO: 10047 Attention: Ms. Beverly D. Wood CONTRACT NO: 40.0060 FOR PROFESSIONAL SERVICES: Engineering services rendered during the period of January 29, 1978 to February 25, 1978 for the investigation of the source, occurrence and movement of ground water in the Bluffs Study area. Salary Costs $1,111.60 Plus 125% '1:389.'50 $2,501.10 . Laboratory charges 100.00 Reproduction charges ..'636— Total Amount Due $2,607.86 PLEASE NOTE This is an invoice for services and due upon presentation. A charge of U }_-___s4'W-Y` : CITY OF NEWPORT BEACH�� RECEIPT J NEWPORT BEACH, CALIFORNIA 92663 76922 No. I 19-1 RECEIVED FROM DATE po ! FOR: EACCOUNT NO. AMOUNT/✓V r ��]�/l'✓�Q DEPARTMENTBY CITY OF NEWPORT BEACH NEWPORT BEACH, CALIFORNIA 92663 RECEIPTT�(y�A/^( NO. T7 V V 2 V 1 nunr`�1 Ionce I ' J l �p J7 ,/60 RECEIVED FROM Vc:2) i FOR: tI I I I ACCOUNT NO. AMOUNT DEPARTMENT I I I BY i ` n Department of Community Development �4raonNr DATE: October 5, 1978 TO: Director FROM: Grading Engineer SUBJECT: Bluffs Ground Water Studies letter requesting additional moneys dated September 13, 1978. The items specified as cost overuns appear to be partly legitimate and partly within the scope of work proposed. They are dealt with in this fashion below. ITEM 1: Rights of way negotiation were not specifically included in the proposal. No written record shows a prior request for authorization but costs may be legitimate. ITEM 2: Evapotranspiration studies were included in the scope of work. No authorization for additional study required. ITEM 3: Extension of the study area necessary based on professional judgment. Additional data required would include geology research, watering data and incorporation of same into study. The study area outlined in the request for proposal surrounded on three sides these additional areas. Technically, these areas should have been known to require study at the time of proposal. ITEM 4: Drilling and installing monitoring was a matter of the judgment of Montgomery engineers. The cost may be partly offset by omission of backhoe pits which were included in the proposal. ITEM 5: Fifty additional copies of the report were requested by the City. Costs should be paid. ITEM 6: The Public Works Department was not approached to supply this information. The information in the original report was supplied by the homeowner's associations. ITEM 7: The clarifications may be partly legitimate although review period for the report was very short. These requirements were established after the report had been printed and were needed to support staff's observations and opinions. The additional meetings were required because of errors in the report and partly because of staff's requests for clarifications. No specific authorization request was made for these meetings. JAMES R. EVANS JRE:rw w DAMES M. MONTG(DMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-6733 WATER RESOURCES DIVISION 00 RARL R.D RRR FRDD %. URDN, lR. September 13, 1978 ',S ORONALD LOARTO 9 C�\ FO po J o@ e0 a� a�Q�y19� tt Ms. Beverly Wood S �Q1 00F%o�'. Community Development Department CjRCF City of Newport Beach Iq 2 3300 Newport Blvd. Newport Beach, California 92660 4i N Dear Ms. Wood: This letter is written concerning Montgomery's engineering costs resulting from the Bluffs Area Ground Water Study. We are now closing the job and will make no additional billing to the account. Our final invoice dated August 11, 1978, shows $14,897.44 to be the total remaining amount due for engineering and reproduction services. This total represents an increase in the contract amount of approximately $7,626. These costs have been incurred as a result of the following items of work: r1VAA�/dy9 1/✓- 1) The requirement of additional time to be spent on rrb ��4j�Q rights -of -way negotiation; f4Ma day s `Iry �42 2) The additional time required to complete etas ed Maa ,.9 evapotranspiration studies; 3) The necessary extention of the original study area/y.,.4 to include Corona del Mar High School, Eastbluff �� -;�` Park and Eastbluff Elementary School; �a 4) The completion of exploration at 11 sites rather than 10, and the installation of a ground water /91ex,!ne�ry monitoring system rather than preparation solely of recommendations for such a system; 5) The printing of 50 copies of the final report as requested; 22 6) The addition of previously unavailable water meteY "'1Fh`1,Y,�� data into water application calculations, and the Q preparation of revised hydrologic tables; and 7) The clarification and expansion of selected sections of the final report, and attendance at three public presentations which were additional to those budgeted for the study, P L A N N I N G .., R E S E A R C H ... ENV] RONM E NTAL E N G I N E E R I N G JAMES X MONTGOWRHY,CONSULTSENGINEEHS, INC. 17802 Sky Park Circote 201, Irvine, California 92707/ (714) 979-8733 Ms. Beverly Wood -2- September 13, 1978 City of Newport Beach The additional costs described have been based upon the schedule of charges presented in our proposal and contract of January 5, 1978, page 4, paragraph 3, 11 . . . additional services outside the scope of work None of the charges above include work done to revise computation errors made by Montgomery. Those recomputations, resulting revisions, preparations of 75 Addendum copies and associated meetings, and also a field tour of the Bluff edge, were all made by Montgomery at no cost to the City of Newport Beach. We trust that these remarks will explain and clarify the fees as billed, and again, we wish to thank you for your patience in these matters. If we can supply any additional information, please let us know. Very truly yours, Karl H. Wiebe Manager Water Resources Division /ncy lawJAMES M. MC)MTGOM6RYI CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-8733 August 23, 1978 WATER RESOURCES DIVISION RARL 11. WIREE PROD It DUREN.IR. RONALD L RARTO Mr. R. V. Hogan, Director Department of Community Development City of Newport Beach 3300 Newport Blvd. Newport Beach, California 92663 Dear Mr. Hogan: This letter is written in consideration of our recent discussions, relative to changes in the Bluffs Area Ground Water Study. We have completed our revisions and are transmitting them herewith as a draft Addendum to the final report. The Addendum has been prepared at the request of the City of Newport Beach to correct several computation errors in underflow calculations, and to include additional water application records. Supporting backup calculations have been hand carried to the Public Works Department. Selected sections of the report have also been expanded as a result of questions from the City. Several items in the conclusions and recommendations have been clarified. Subsequent to review, comment and approval by the Community Development Department and the Public Works Department, we will prepare 75 copies of the final Addendum and transmit them to your office. In our opinion, this Addendum is responsive to your questions and fulfills the additional requirements of the City. Should you have any questions during your review, please let us know. Very rulyy yours, ZvV. .� N Robert H. Ramse Proj ct Engineer,Ls �r1 r m�� e�c 90 tl 00a oeQ° %9,�rbd Karl H. Wiebe r�"- Project Manager �. �• ncy cc: Philip Gatsoulis P L A N N I N G ... R E S E A R C H ... E 14 V I R 0 N MEN T A L E N G I N E E R I N G JAMEG M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979.8733 City of Newport Beach DATE: November 20, 1978 Community Development Departme SUBJECTr Bluffs Ground Water Study 3300 Newport Blvd. Newport Beach, CA 92660 Attn: Mr. Dick Hocran. Director Gentlemen: The following items are: ( ) Reque ( X ) Enclo ( ) Sent separately via Mail ( ) Report ( ) Specification ( ) Cost Estimate ( ) Progress Est. ( ) Test Result ( ) Blank Form ( ) Test Sample ( X ) Other No. of Copies Description 1 Copy of letter submitted to Ms. Beverly Wood on September 13, 1978 These data are submitted: ( ) At your request ( ) For your action ( ) For your approval ( ) For your files ( X ) For your review ( ) For your information General Remarks: Encls. ( X ) Copies to: GO-4 (10/68) Very truly yours, JAMES M. MONTGOMERY Karl H. Wiebe JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-8733 W WATER RESOURCES DIVISION September 13, 1978 Sl/REc Ew"eo �9 XO"DL SARTO 10 0 cN - Ms. Beverly Wood N o e� Community Development Department .4 NEN1? 0P`�� City of Newport Beach c' 3300 Newport Blvd. ti Newport Beach, California 92660 Dear Ms. Wood: This letter is written concerning Montgomery's engineering costs resulting from the Bluffs Area Ground Water Study. We are now closing the job and will make no additional billing to the account. Our final invoice dated August ll,.19.78, shows $14,697.44 to be the total remaining amount due for engineering and reproduction services'. This total represents an increase in the contract amount of approximately $7,626. These costs have been incurred as a result of the following items of work: 1) The requirement of additional time to be spent on rights -of -way negotiation; 2) The additional time required to complete detailed evapotranspiration studies; 3) The necessary extention of the original study area to include Corona del Mar High School, Eastbluff Park and Eastbluff Elementary.School; 4) The completion of exploration at 11 sites rather than 10, and the installation of a ground water monitoring system rather than preparation solely of recommendations for such a system; 5) The printing of 50 copies of the final report as requested; 6) The addition of previously unavailable water meter data into water application calculations, and the preparation of revised hydrologic tables; and 7) The clarification and expansion of selected sections of the final report, and attendance at three public presentations which were additional to those budgeted for the study. JAMES M. MONTGOMERX CONSMTINOGINEERS, INC. 17802 Sky Park Ciml joe 201. Irvine, Cahloima 92707/ QU) 979.8733 Ms. Beverly Wood City of Newport Beach -2- September 13, 1978 The additional costs described have been based upon the schedule of charges presented in our proposal and contract of January 5, 1978, page 4, paragraph 3, . . . additional services outside the scope of work .". None of the charges above include work done to revise computation errors made by Montgomery. Those recomputations, resulting revisions, preparations of 75 Addendum copies and associated meetings, and also a field tour of the Bluff edge, were all made by Montgomery at no cost to the City of Newport Beach. We trust that these remarks will explain and clarify the fees as billed, and again, we wish to thank you for your patience in these matters. If we can supply any additional information, please'let us know. ' Very truly yours, 1.. Karl H. Wiebe Manager Water Resources Division /ncy DAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-8733 WATER'RESOURCES DIVISION EARL N. WIEDE PRED K DUREN,IK July 14, 1978 RONALDL.DARPAUL F. iOPER Ms. Beverly D. Wood Community Development Department City of Newport Beach 3300 Newport Blvd. Newport Beach, California 92660 Dear Ms. Wood: This letter is written to amplify our telephone conversation on July 6, 1978, relative to current costs on the Bluffs Area ground water study. As I stated at that time, our costs exceeded the contract upper limit at the end of the first week in June by about $1,900. I now have a detailed accounting of costs as of July 1, 1978, which total $30,406, including all subcontractor costs. This total represents approximately $4,200 in excess of our contract amount. Additional costs have been incurred as a result of additional time spent on right of way negotiation and evapotranspiration studies, and the necessary extension of the study area to include Corona del Mar High School, Eastbluff Park and Newport Beach Elementary School. Additionally, piezometers were constructed at all 11 sites and a completed monitoring system was installed, rather than solely preparing recommendation for the installation of such a system. I hope we can clarify 'these problems. If we can provide any further information, please let me know. Ve y truly yours,A (� 9v �' arl H. Wiebe Project Manager /ncy PLANNING... R E S E A R C H... E N V I R ON MEN TA L ENGINEERING DAMES M. MONtiSCWERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-8733 WATER RESOURCES DIVISION April Z6, 1978 Lco,mnmunity ED Ms. Beverly D. Wood y ent Department of Community Development City of Newport Beach 1976 3300 Newport Blvd. CF OLI Newport Beach, California 92660 CALlFAcN, �i Dear Ms. Wood: This letter is written in accordance with our telephone conversation on April 21, 1978. As we discussed, our consultant, Bob Dickey Geotechnical Incorporated, has been unable to secure the services of a drilling contractor for the past four weeks. This problem has resulted from equipment breakdown on the part of the originally selected contractor, and from the heavy demands on other local contractors due to current weather -related mud slides and slope failures in Southern California. We have worked closely with our consultant on this problem but have been unable to secure a qualified driller. The earliest present date for initiation of drilling is May 5, 1978. We have now initiated discussions with a different soils consultant who has in- house drilling capabilities. Successful negotiations with this new consultant could result in an initial drilling date several days earlier than May 5. These drilling and construction delays have, in turn, delayed the ultimate completion of our final report. If drilling is started on or before May 5, we can complete the report for your initial review by the 20th of June, 1978. If we can supply additional details on this situation, please let us know. We appreciate your requirement for an early completion of this work and your patience. Please be assured that we will do our utmost to advance the progress of these studies and complete our report on a timely 'schedule. Very truly yours, J Karl H. iebe Project Manager /ncy P LAN N I N G... R E 8 E A R C H.,. EN V I R 0 N M E N TAL E N G I N E E R I N G • • DAMES M. MOM70C)MERY, CONGUL`PING ENGINEERS, 17802 Sky Park Circle, Suite 201, Irvine, California 92714/ (714) 979-8733 February 24, 1978 '` RECEIVED s' Communlent peveloPr Dept Ms. Beverly D. Wood 2719780- Department of Community Development'�i FEB TTY of City of Newport Beach 14sw gEACHI 3300 Newport Boulevard 4 cauF Newport Beach, California 92660 tics Dear Ms. Wood: WATER RESOURCES DIVISION EARL R. WIEDE FRED E. DUREN.M PAULF.METEREOFER RONALD L. ➢ARTO In accordance with our previous conversations regarding the Bluffs Ground Water Study, we are transmitting this progress report addressed to Mr. R. V. Hogan. It briefly summarizes the results of Phase I, as defined in our agreement, dated January 25, 1978. Also presented are recom- mendations for additional work to be completed during Phase II of the study. We were pleased to have the opportunity to briefly review the project with Mr. James Evans in our offices on February 23, 1978. During this meeting, we discussed three general subjects. The first subject concerned permits necessary to carry out our drilling and trenching program, as well as the proximity of our proposed exploratory sites to existing subsurface utilities. Mr. Evans offered his assistance in obtaining the necessary permits and inspections from the City Department of Public Works and in obtaining permission to drill on the property managed by the Bluffs Homeowners Association. The second subject discussed during the meeting concerned the clarification of Montgomery's potential liability and responsibility for trench work conducted during the project, with specific regard to any future slope instability problems in the bluff area. As you know, we have agreed to I'... return the sites of such work to those conditions which existed just prior to entry... ". Mr. Evans said that he would review this subject with the City staff and report back to us. The third subject of our meeting concerned surface completion of the obser- vation wells with meter boxes or other suitable traffic cover. It would probably be most desirable for the City to install these boxes to insure safety and proper construction. Mr. Evans indicated that he would contact the Department of Public Works concerning this matter. Our drilling contractor will be available to begin exploratory operations in approximately three weeks. Hopefully, this will provide sufficient time to secure any necessary right -of -entry permits. JAME9 M. MONTGOMERX CONSULMSENGINEERS, INC. 17802 Sky Park Circl-911 201, Wine, California 92714/(714) 979.8733 Ms. Beverly D. Wood - 2 - February 24, 1978 We are pleased to provide this brief progress report for Phase I investigations of the Bluffs Ground Water Study. If we can supply any additional information or clarify our recommendations, please Let us know. Very truly yours el /ZV• v1 �,rt H. R�� Project Engine`ai N✓` Karl H. Wiebe Project Manager /Pp cc: P. Gatsoulis Enclosures 4 •. • law DAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714/ (714) 979-8733 February 24, 1978 WATER RESOURCES DIVISION KnEL R. W1EDU FRED K. DUREN. JR. FAULF.MEYERIIOFER y RONALD L. DARTO HD 9 R Mr. R. V. Hogan, Director �ormunity Development Department of Community Development - g 19781a� 10 FE City of Newport Beach 3300 Newport Boulevard NSWp�FEACN, >> Newport Beach, CA 9266 4 Dear Mr. Hogan: In consideration• of our previous conversations with Ms. Beverly D. Wood on the Bluffs Ground Water Study, and in accordance with the provisions of our contract which state, 11 ... Provide written recommendations to the City for exploratory drilling, piezometer construction and field mapping program to provide required additional surface and subsurface information... we have prepared this brief letter report. Included is a summary of our progress to date, the results of our review, and a recommended study and exploration program. The Bluffs study area is shown on Figure 1. In order to obtain an understanding of the nature and movement of ground water in and through the study area, a number of basic tasks have been completed. These include the following: 1. Collection and review of all pertinent reports on soils and geology in the study area, as well as available hydrogeologic analyses. Information obtained included 32 reports which had been prepared for the City of Newport Beach, The Irvine Company, Holstein Industries, the California Division of Mines and Geology, and the United States Geologic Survey. 2. Evaluation of all available geologic maps, grading plans, and aerial photographs for the Bluffs area. 3. Review and evaluation of all subsurface exploration data and borehole logs. 4. Collection and review of mineral analyses of seepage samples. 5. Completion of reconnaissance geologic mapping in the study area, with emphasis on the hydrogeologic conditions. DAMES M. MONMOMERY,,CONSUXM ENGDWER8.INQ 17802 Sky Park Clr01e0o 201, Irvine, Californla 92714/(714) 979.8733 Mr. R. V. Hogan, Director - 2 - February 24, 1978 Subsequent to this review and data completion, all available geologic data was joined on a single base map. This provided a clearer overview of the geologic nature of the Bluffs, and its significant geologic and hydrologic interrelationships. It also allowed a determination of those locations where additional information would be required for the ground water investigation. The geologic framework of the Bluffs area includes northerly dipping Miocene and Pliocene -age sandstones, siltstones and shales which are unconformably overlain by Pleistocene -age terrace deposits of sand and silty sand. However, in a large part of the study area, specific infor- mation will be required on the thickness and attitude of these major units and their permeability, and also on the nature of local ground water bodies. To obtain this specific information, the construction of a number of explora- tory bore holes and piezometers will be required. From these boreholes, we will obtain data on the nature of Quaternary terrace deposits and underlying Tertiary bedrock; the permeability of. any aquifer units; and the elevation and quality of any ground water encountered. Additionally, exploration trenches (backhoe pits) will be required near the base of the bluffs. This trenching program will provide information on the nature of bedrock units beneath the surficial coluvial materials and cliff rubble and also on the precise location of seepage, its quantity and mineral quality. In order to accomplish these study goals, it is recommended that the exploratory program undertaken include the following specific items: 1. Drill, excavate and log ten bore holes, as located on Figure 2. Six bore.holes will be constructed with piezometers, and the remaining four will be used to define the hydraulic parameters of the bedrock units and terrace deposits. 2. Excavate and log six backhoe pits at the base of the bluffs, as located on Figure 2. The backhoe and bore hole excavation sites will be returned to conditions that existed just prior to entry. Ground water levels will be monitored in all piezometer wells, .and ground water samples will be collected for mineral analysis to aid in determining the source and movement of ground water. Data collected in this exploration program will be used to develop detailed recommendations for possible remedial measures, and to prepare a definitive report describing the ground water regimen in the Bluffs area. CONSULTn ENGINEERS, INC. 17802 Sky Perk CircIA 201, Irvine, Cellfornla 92714/ (714) 979-B733 Mr. R. V. Hogan, Director - 3 - February 24, 1978 Subsequent to comments you may have on this recommended program, and the completion of required right-of-way agreements by the City, we plan to initiate the drilling and trenching activities. If we can provide any additional information on this study or explanation of our recom- mendations, please let us know. Very truly yours, Robert H. amsey Project Engi er E���V_MWMW ! t ►�o! �1 Karl H Projecl /pp cc: P. Enclose f/ OST I BAY Park /. - �. P i� �{ ; :',.{I'+'I�',`! �yi �•? • IY ♦ sdP �9 1 K' '•.:q:iq';?.i :.i•n%��j'p'''�:• •'• }'J \, - �0--� J chi • � aJi \ `• a � '� -� •.'�'i7.'i.C.9.�; :: � © 1 STUDY �9s AREA s �? v �a / "'thy'.,• �.0 v1 �, I ` J 'er moo A rr6 �s • 3y. rI . , , F / I � t �F, rt.. • , ..y „A H'�e\h seh'� Sd/hj ch -1- m - T� -d9� ` •_ 11140 1WH to ` , � l to 18 a d % a •V _ _ '� New rt o \` � ^ • I I(�'' � (I Ersi �r 1 �i.Nzw I .eL15 � v �f.�' liplLd'.. 1 r � `' l \ ✓ V c6� L nda ' From USGS Newport Beach Quadrangle,1965 VICINITY MAP BLUFFS GROUND WATER STUDY 014 FIGURE I CITY OF NEWPORT BEACH January 31, 1978 Fred K. Duren, Jr. James M. Montgomery, Consulting Engineers, Inc. 17802 Sky Park Circle, Suite 201' Irvine, Calif. 92714 Re: Bluffs Groundwater Study Contract: Newport Beach Dear Mr. Duren: Enclosed please find the Study to be conducted per The majority of the funds appropriated by the'City Industries has assured me portion of the funds will contract for the Bluffs Groundwater your proposal dated January 5, 1978. for the contract have already been Council, and Mr. Dooley of the Holstein in a conversation yesterday that their be forthcoming by the end of the week. Therefore, if this contract is satisfactory as written, please have the original signed and returned to me at your earliest convenience. I will verify the receipt of Holstein's deposit with you when it has been deposited, and in order to avoid any furtiter delays, you may proceed with the project as of Monday, February 6, 1978. Thank you for your cooperation. Sincerely, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By. B v rly D. o , E vironme al Coordinator BDW/sh Encl. City Hall • 3300 Newport Boulevard, Newport Beach, California 92663 t ♦ II LJAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Par&rcle, Suite 201, Irvine, California 92714/ (714) 979-8733 January 5, 1978 WATER RESOURCES DIVISION EARL It. IVIEBE FRED E. DUREN,JR. PAUL F. MEYERNOFER RONALD I-DARTO Mr.,R. V. Hogan, Director Department of Community Development City of Newport Beach 3300 Newport Boulevard - Newport Beach, California 92663 ,- Dear Mr. Hogan: In accordance with our discussions on December 19, 1977, and the letter from Beverly D. Wood on December 20, 1977, we are transmitting our revised proposal for the Bluffs Area Ground Water Study. We have also included a designation and description of project personnel, the time frame for the studies, the products to be delivered to the City, and a discussion of fees and method of payment. These are described in the following paragraphs. SCOPE OF WORK The purpose of the Bluffs Area Ground Water Study is to investigate the source, occurrence and movement of ground water in and through the study area, as defined in the City of Newport Beach's request for proposal, dated July 11, 1977. The scope of studies may be detailed as follows: PHASE I 1. Review' all pertinent soils and geologic data and reports which are available in the City's files, and evaluate that data in relation to the proposed project. 2. Review additional data and maps which may be available from The Irvine Company, the University of California, the California Department of Water Resources and the Orange County Environmental Management Agency. 3. Provide written recommendations to the City for exploratory drilling, piezometer construction and field mapping program to provide required additional surface and subsurface information. ` 'J9MES M. MONTGOMERY, COG ENGINEERS. INC. 17802 Sky ft. Suite 201, Irvine, California 92714/(714) 979.8733 Mr. R. V. Hogan City of Newport Beach - 2 - January 5, 1978 PHASE II 1. Drill and construct approximately 10 exploratory holes and piezometers, and where applicable, conduct short- term pumping or injection tests to determine hydraulic properties of the aquifers. 2. Define and map the terrace -bedrock contact, insofar as possible, along the edge of the Bluffs and at the sites of the exploratory borings. 3. Excavate and map backhoe trenches in several seepage areas at the base of the Bluffs along Backbay Drive. 4. Conduct limited -scale evapotranspiration studies. 5. Conduct a detailed program of ground water sampling and mineral analyses, using advanced in-house constituent analytical techniques. 6. From the available data, construct interpretive maps depicting ground water elevation contours, bedrock elevations and thickness contours of the terrace materials. 7. When the above tasks are completed, undertake the following items of work: a. Determine the character of the underlying aquifers. b. Determine whether flows are confined to the bedrock -terrace interface and provide supporting information. C. Provide a map showing the generalized config- uration of the terrace -bedrock contact surface. d. Determine whether areas outside the Bluffs contribute ground water to the study area. e. Determine existing flow directions of subsurface waters. iJA 4M M. MONTGOMERY, COROG ENGINEERS, INC. 17802 Sky P Suito 201. Irvine, California 92714/(714) 979-8733 Mr. R. V. Hogan City of Newport Beach - 3 - January 5, 1978 f. Compare bedrock elevation data to ground surface elevations to delineate areas which may experience potential problems from the buildup of ground water. g. Estimate the quantity of subsurface inflow and outflow in the study area. 8. Provide recommendations for location and installation of permanent observation and monitoring facilities. 9. Summarize limitations of study. 10. Provide detailed recommendations for remedial measures, including possible modification of patterns and application rates of irrigation waters, and recom- mendations for the design of potential dewatering facilities. 11. Prepare a final report describing the ground water regimen and provide conclusions regarding the source, movement and ultimate destination of ground waters in the area. Provide 25 copies of the final report, together with sepia copies of each plate to the City. Relative to physical disturbances associated with drilling and trenching, Montgomery will return the sites of such work to those conditions which existed just g rior to entr It is our underst ndin that the City ' i'N rovi e1 N °µ�6WN�ns OctaJ I)OW of Newport Beach wll�t �d eces.sar_- o, _.,c -_gam ermits,, any elevation surveys which might be required, and required coordination and interface between the Homeowners Association and the proposed Developer. Montgomery personnel to be assigned to the project include Karl H. Wiebe, Project Manager; Robert H. Ramsey, Project Engineer; James A. Goodrich, Hydrogeologist; and Fred K. Duren, Engineering Hydrologist. Bio-sketches of those individuals are attached. FEES AND PAYMENT The fee for services described in this letter will be based on salary cost plus 125 percent of said salary costs. The elements of salary costs are defined on pages 24 and 25 0£ the 1978 edition of Manual No. 45 • S y JAMES M. MONTGOMERY. CONNG ENGINEERS, INC. 17802 Sky Par sulto 201, Irvine, California 92714/(714) 979-8733 S Mr. R. V. Hogan City of Newport Beach - 4 - January 5, 1978 of the American Society of Civil Engineers. For the purpose of this project, salary costs are defined as 1. 30 times actual payroll. Travel costs would be charged at the rate of 17 cents per mile and all direct, non -salary expenses directly attributable to the project as described on pages 25 and 26 of said ASCE Manual would be charged at actual cost. As discussed on December 20, 1977, a fee of $26,200 should be budgeted for this work. Payment would be due within 30 days after date of monthly statement describing the work performed and expenses incurred during the preceding month. In order to defray carrying charges resulting from delayed payments, simple interest at the rate of eight percent (8. 076) per annum would added to the unpaid balance of each invoice. The interest period shall commence 60 days after date of original statement and shall terminate upon date of payment. Payments would be first credited to interest and then to principal. No interest charge would be added during the initial 60-day period following date of invoice. If additional services outside the scope of work presented here are required, such as presentations or meetings, fees would be charged in accordance with the basis presented. Approximate hourly rates for the project staff are shown in Table 1. TABLE 1 Project Staff Hourly Rate Karl H. Wiebe $ 48 Robert H. Ramsey 31 James A. Goodrich 23 Fred K. Duren 40 Montgomery would maintain insurance as will protect the City from claims under the Workmen's Compensation Laws and from General Liability claims for bodily injury, or death, or property damage which may arise from the negligent performance by its employees in the functions and services required under this Proposal. e n JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17002 Sky Park Circle, Suite 201, IMne, California 92714/(714) 979.8733 Mr. R. V. Hogan City of Newport Beach - 5 - January 5, 1978 Montgomery further agrees to maintain Professional Liability insurance to protect the City from Montgomery's negligent acts, errors or omissions of a professional nature; however, it is understood and agreed that the total aggregate of professional liability to all parties (client, contractors and subcontractors) related to this Proposal and the ensuing work there- under shall not exceed $50, 000 or the total amount of Montgomery's fee, whichever amount is greater. Relative to timing for the study, we estimate that 14 weeks will be required to complete the work and prepare the preliminary report for the City's review. Phase I can be completed within approximately 3 weeks,. Our staff can be available to commence work by February 1, 1978. It has been a pleasure to provide this information for the City. If we can supply any further detail, please contact us. Very truly yours, � "k _1K ) Karl H. Wil6be Project Manager /Pp Attachments Philip Gatsoulis Vice Prr President Miles E. Wollam Vice President ad e N N KARL H. WIEBE EDUCATION: B.A., Physical Science, University of California at Santa Barbara Graduate Studies in Soils and Engineering Geology, University of California at Los Angeles, University of Southern California, and California State University at Los Angeles and Long Beach REGISTRATION: Geologist and Engineering Geologist in California SUMMARY: Mr. Wiebe has over 18 years of experience in hydrogeology and water quality with particular emphasis on ground water quality protection, ground and surface water resource development, 'R basin management and planning. His background includes basin and master planning ground water investigations, management of domestic and overseas well drilling programs, reconnaissance studies, municipal and industrial waste disposal studies of design of waste disposal wells, contract administration, and overall evaluation of hydrogeologic factors affecting basin development. He has been responsible for design of ground water collection systems, desalination and dewatering facilities, and standards for safe construction and sealing of water wells in coastal basins. Mr. Wiebe has authored numerous publications related to ground water and surface conditions in California and for developments in Tunisia, Saudi Arabia and Nicaragua. He has coordinated programs with the State of California and with the U. S. Geological Survey and U. S. Agency for International Development. EXPERIENCE: TAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. Chief Hydrogeologist: Mr. Wiebe is manager of the firm's Water Resources Division and responsible for hydrogeologic investigations including ground water basin planning and management of water quality and design of water wells and well field systems. He has conducted and supervised investigations of ground water basin yield, ground water contamination, and means of correction. Additional activities include assisting in the preparation of reports on municipal and industrial wastewater percolation, storage and reclamation studies, and disposal well design. He was chief hydrogeologist in all ground water investigations conducted in preparation of the San Diego Basin Plan for the State Water Resources Control Board in California. ENGINEERING -CONSTRUCTION FIRM IN LOS ANGELES Senior Hydrogeologist: Responsibilities involved general geologic and hydrogeologic reconnaissance studies, and subcontract preparation and administration. Work included review and editing of technical reports for sites in Australia, India, Mexico, and the USA; supervision of exploration studies; and preliminary design and cost estimates for saline ground water collection systems for desalting plant feed water. He also prepared designs and estimates for missile site dewatering facilities. Managua, Nicaragua, Central America: Mr. Wiebe was in charge of ground water and detailed hydrogeologic studies of Western Nicaragua for the Government of Nicaragua (USAID), including supervision of 18 professional and subprofessional employees. Work encompassed inventory of water wells, water sampling, water level measurements, elevation survey, study of water quality and impairment, and hydrogeologic map preparation for 35,000 square -kilometer area. Studies were 00 . N KARL H. WIEBE (Continued) made of runoff, evapotranspiration and long term deep percolation. Detailed exploratory drilling and well construction programs were planned, contracted and supervised for five high priority study areas. Present and potential ground water yield studies were undertaken and completed for municipal and agricultural water supply, and all data and conclusions were presented in a detailed final report to the Government of Nicaragua and to USAID. Tunis; Tunisia: Conducted prefeasibility ground water quantity and quality surveys and gave administrative supervision to economists, soil scientists and support technicians. Studies included pre -evaluation of agricultural potential of 16 semi -arid Tunisian ground water basins. ENGINEERING -CONSTRUCTION FIRM IN LOS ANGELES e Mr. Wiebe was responsible for hydrogeologic studies, management of the exploratory and test well drilling program, stream gaging design and construction, and coordination of the surface water data collection programs for investigation of the Upper Medjerda Valley, Tunisia. Duties included evaluation of all hydrogeologic factors affecting basin development, including aquifer delineation, reservoir evaluation, water quality, natural and artificial recharge, consumptive use, well field layout, irrigation well design, and preparation of reports. Final technical analysis and report on ground water reservoir yield was submitted to the Government of Tunisia and USAID. Trucial Coast, Saudi Arabia: Mr. Wiebe conducted studies and supervised test drilling for municipal water supply development for the towns of Dubai and Sharjah. Evaluated, sand dune aquifers, ground water mineral quality, transmissibility, and aquifer yield potential. He designed and supervised successful construction of initial supply wells, and prepared technical reports on supply development. STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES Associate Engineering Geologist: Responsibilities included planning, organizing and supervising project activities related to ground water basin protection and salinity barrier studies for the State in cooperation with both County and Federal agencies. He planned and supervised ground water exploratory drilling program operations in the Southern California area. Responsible for completion of injection and extraction well design and construction. He reviewed and evaluated technical..data and reports on appropriate projects. Performed evaluations and prepared final reports of ground water surveys, surface water measurement and monitoring studies and water quality investigations of 60 desert basin areas. Conducted investigations on the effects of disposal of liquid and solid wastes at proposed dump sites in Southern California, and prepared designs, specifications and standards for the safe construction and sealing of water wells in coastal ground water basins. This work included the use of numerous sampling devices, methods and analyses, establishing the ground water flow patterns and regimen in the dump areas, and design of the type and extent of the monitoring program for leachate control. In Ventura County, he conducted studies on oil field waste discharge and disposal sites, salt water intrusion, design and construction of salinity barrier test facilities, observation and production test wells, and investigations of nuclear power plant siting. ORGANIZATIONS: Association of Engineering Geologists Geological Society of America International Association of Hydrogeologists National Water Well Association 4 JAMES A. GOODRICH EDUCATION: B.S., Geology, University of California, Los Angeles: M. S. , Geology, University of Southern California (in process). Thesis title: Hydrogeology of Lucerne Valley, San Bernardino County, California. SPECIALIZATION: Hydrogeology and water resources engineering. SUMMARY: Mr. Goodrich has more than 4 years' experience in engineering geology and hydrogeology on both overseas and domestic projects. Responsibilities have ; included well construction supervision, regional and local water supply evalu- ations, ground water quality studies, administration coordination of various geotechnical activities., and writing and presentation of reports. EXPERIENCE: James• M. Montgomery, Consulting Engineers, Inc. Served as hydrogeologist and assistant to the Project *Director, International Water Resources Division. Has been responsible for the preparation and pro- duction of project reports for numerous international water resource and water engineering programs. Consulting Geology and Engineering Firm - Irvine, California Mr. Goodrich served as a staff geologist whose responsibilities included geologic mapping, subsurface exploration, aerial photographic interpretation, earth construction inspection and report preparation. Most projects were associated with hillside land development in Orange, Los Angeles, and Ventura Counties. Consulting Geotechnical Firm - Long Beach, California Mr. Goodrich served as staff geologist on several large foreign and domestic projects. While working on a nuclear power plant -siting project in Puerto Rico, he was responsible for all hydrogeologic work which included ground water chemical analyses, karst geologic processes, and report preparation and presentation. Another project dealt with stratigraphic correlation for ground . water quality analysis for a proposed oil shale tract in northeast Utah. ROBERT H. RAMSEYi EDUCATION: B.S. , Geology, University of Southern California. In Process, M.S. , Engineering Geology, University of Southern California. SPECIALIZATION: Hydrogeology,. Water Resources. SUMMARY: Mr. Ramsey has over 5 years' experience in hydrogeology and engineering geology. His work experience has included geologic mapping, water resource investigations, data collection and analysis, well site locations, supervision of well design and construction, slope stability analyses, and technical reporting. Mr. Ramsey also has experience in preparation of tendering and contract documents, well drilling and construction specifications, and contract admin- istration. EXPERIENCE: James M. Montgomery, Consulting Engineers, Inc. Hydrogeologist: As a member of the firm's Water Resources Division, Mr. Ramsey has served as project technician, assistant project engineer and project engineer on many domestic and overseas assignments. ,His experience includes water resources evaluations in the United States, Middle East, Republic of the Philippines and Republic of Indonesia. His job responsibiLities have included initial field reconnaissance, detailed geologic mapping, evaluation and classi- fication of potential surface and subsurface supply sources, and formulation of exploration programs. He has also participated in the preparation of tendering documents for exploratory and production wells, supervision of weli'drilling and construction, study of sea -water intrusion and design of barrier facilities, study of ground water basin operations and preparation of basin management programs, study of recharge and recovery programs for small basins, contract administration and final report preparation. Engineering Geology Firm - Sherman Oaks, California While serving as a staff geologist, Mr.. Ramsey's responsibilities included both reconnaissance and detailed field mapping as well as grading control and site inspection. He participated in locating and delineating fault contacts in Southern California by means of shallow seismic profiling, trench logging and analysis of shallow exploratory boring data. He reviewed and evaluated geotechnical data on existing projects and assisted in preparation of final reports. ORGANIZATIONS: Association of Engineering Geologists International Association of Hydrogeologists Orange County Water Association i 'JAMES M, MONTC+OMERXCO0G ENGINEERS, INC. 555 East Walnut Poe alilornia 9110 1 /(213) 79 6-9141/(213) 681-4 2 5 5 s FRED K. DUREN EDUCATION: M.S., Hydrology, University of Nevada B.S., Civil Engineering, University of Notre Dame B.S., Geology, University of Notre Dame REGISTRATION: Civil Engineer - California SUMMARY: Mr, Duren has over seven years experience in hydrologic engineering and hydrogeology with emphasis on water resources evaluations, flood determinations, and computer applications. Specifically, his background includes floodway analyses, inundation studies, spillway design flood determinations, water supply feasibility studies, reservoir yield and optimization studies, economic evaluations, field studies and testing, water supply master plans, planning and design of groundwater recharge projects, and design and testing of water wells. Mr. Duren has attended training courses in flood plain hydrology and hydraulics (University of Texas) emphasizing use of the Corps of Engineers' computer programs HEC-1 and HEC-2, published technical articles in the fields of hydrologic engineering and water resources development, and prepared engineering reports for many of his projects. EXPERIENCE: JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. Hydrologic Engineer: Mr. Duren is currently working in the Water Resources Division and is responsible for surface water hydrology work within the firm. He has recently been responsible for a'floodway analysis involving use of Corps of Engineers' computer program HEC-2, development of a spillway design flood based on probable maximum .precipitation using the Corps of Engineers' computer program HEC-1, preparation of inundation studies, reservoir yield studies, and planning and design of a large-scale groundwater recharge project including thirteen flood -proofed water wells and nine piezometers. The inundation studies involved determination of water surface elevations and areas of inundation consequent upon hypothetical dam failures by constructing an initial hydrograph at the failed dam and routing the flood wave downstream using the Modified Puls and Muskingum Methods. The floodway analysis involved an hydraulic analysis to demonstrate possible alternative alignments of the floodway by removing the criterion of equal conveyance on either side of the channel. The spillway design flood was determined for a river with no usable runoff data by developing a synthetic unit hydrograph on the basis of a dimensionless S-curve for nearby watersheds and utilizing this in conjunction with HEC-1 and probable maximum precipitation data for the watershed to determine the design flood. Prior to his current assignment, Mr. Duren spent seventeen months in the Philippines as Project Hydrologist for water supply feasibility studies for six major Philippine cities. During this assignment he was responsible for evaluating surface and groundwater resources for each of the six cities, including data collection in the field and with provincial and national Philippine agencies, field testing to generate additional data, data analysis to determine surface and groundwater qualities and yields, preliminary design of facilities, economic evaluations of alternative water development schemes, and selection of the optimum scheme.. He directed the work of three Filipino engineers and also was a primary participant in a national seminar on water supply feasibility studies given for Filipino administrators, engineers, and scientists. r FRED K. DUREN (Continued) Mr. Duren was an engineer in the Water Engineering Department prior to his assignment in the Philippines. His responsibilities there included the surface water resources evaluation for a California county as part of a comprehensive countywide water resources evaluation, a study to examine long-range water supply alternatives for the Southern Nevada region, a mountain watershed water resources analysis and design, field testing of a pilot recharge program, a reservoir yield study, and the development of a scalping technique to separate direct runoff from base flow on long-term hydrographs. U.S. ARMY CORPS OF ENGINEERS (The Hydrologic Engineering Center) Mr. Duren was employed with the Corps of Engineers at the Hydrologic Engineering Center in Davis, California. During his stay at the HEC, he developed a computer model that can be utilized to select the economically optimum flood control diagram for a single multipurpose reservoir. The assignment involved a statistical analysis of all damage -producing floods, economic evaluation of reservoir benefits, and extensive use of two HEC computer ,programs: HEC-1 and HEC-3. The results of this project are described in HEC Technical Paper No. 34. He prepared and presented results of project to technical staff of the Hydrologic Engineering Center in a technical seminar. ORGANIZATIONS: American Society of Civil Engineers American Water Resources Association American Water Works Association Chi Epsilon PUBLICATIONS: "Water for Southern Nevada: Parts 1 and 2," by E. J. Kostjal, F. K. Duren, and A. Morgner, Water and Sewage Works, Vol. 119, Nos. 5 and 6 (May and June 1972). . "Optimizing Flood Control Allocation for a Multipurpose Reservoir," F. K. Duren and L. R. Beard, AWRA Water Resources Bulletin, Vol. 8, No. 4 (Aug. 1972). (Also published as Technical Paper No. 34, U. S. Army Corps of Engineers, the Hydrologic Engineering Center, Davis, California.) AGREEMENT THIS AGREEMENT is made and entered into on this 25th day of January, 1978, by and between the CITY OF NEWPORT BEACH, a municipal corporation, hereinafter referred to as "CITY," and JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC., hereinafter referred to as "CONSULTANT." W I T N E S S E T H WHEREAS, the City Council of Newport Beach has determined that a comprehensive study of the groundwater conditions in an area of the City known as the Bluffs is necessary, in the City of Newport Beach, County of Orange, State of California; and WHEREAS, CONSULTANT has submitted to CITY a proposal to prepare U said Groundwater Study; and WHEREAS, CITY desires to accept said proposal. NOW, THEREFORE, in consideration of the foregoing, the parties hereto agree as follows: 1. GENERAL CONSULTANT agrees to conduct the subject Groundwater.Study and prepare a report in accordance with the requirements set forth in Paragraph 2 of this Agreement. CITY agrees to remit to CONSULTANT the amounts set forth in paragraph 3 of this Agreement in accordance with the terms and conditions set forth in this document. 2. SCOPE OF WORK The subject Groundwater Study and report will be prepared in accordance with the CONSULTANT'S proposal dated January 5, 1978, as amended and as attached to this Agreement marked as Exhibit "A" and by this reference incorporated herein at this point as if fully set forth. - 1 - 14 3. BILLING AND PAYMENT CONSULTANT shall be paid under this Agreement on a time and material basis and in no event shall the maximum amount of this Agreement exceed Twenty -Six Thousand Two Hundred Dollars ($26,200.00). Partial payments shall be made by CITY to CONSULTANT upon CONSULTANT'S presentation of statements verifying the time and material costs incurred by it in connection with this,Agreement. 4. FAITHFUL PERFORMANCE CONSULTANT shall use diligent efforts to complete this contract within fifteen (15) weeks after execution of this Agreement. The subject Groundwater Study must meet the approval of the Director of Community Development and the Director of Public Works of the CITY. fn the event additional work is required due to input during the public hearings, said additional work shall be subject to a separate contract. 5. TERMINATION This Agreement is subject to termination by the CITY at any time upon serving written notice to CONSULTANT. The CITY shall be thereafter liable to CONSULTANT only for fees and costs incurred as of the date CONSULTANT receives such notice of termination. IN WITNESS WHEREOF, the parties hereto have entered into this Agreement as of the date and year first above written. APPROVED AATO FORA CITY OF NE Y-RRT BEACH By / //C v - ney W1 rector, " Com`�"i-fy Development Department CITY JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. --/� . By_�� CONSULTANT ' <M1 By - 2 C1 Y OF NEWPORT BE%H COUNCILMEN MINUTES opy��v�oTy\2 ,tp December 19, 1977 INDEX HULL I.HLL \ Motion x BA-44 is to be brought back to the Study Session Ayes x x` x x x x x and the evening meeting on January 9 with justifi- cation for the budget request plus a complete, up-to-date analysis. \ 4. BA-45, $35,000.00 increase in Budget Appropria- Surplus for tions and decrease in Unappropriated street improvements -to Irvine Avenue in connection construction of the Irvine-Baycrest ain from Unappropriated Surplus to Motion x provements/Irvine Avenue, State Gas Tax Ayes x x x x x x xc. 2106), was approved. \BA -20,000.00 increase in Budget Appropriad increase in Revenue Estimates, er study of the Bluffs Area of the 0 Q 00 to be donated by the developer, from Unapprd\riated Surplus and Donations and Contributioneral Fund, was presented. Community De@@@nt Director Dick Hogan stated that he had been in�rmed by the contractor that since their proposal d been submitted last July and the work coulduntil February, there would be an increestimated to be $2,200, and that theate shareof this increase for the duld be $400.00. Jim Dooley, representinIndustries, addressed the Council a@@y would be willing to pay their proportionate %h re of the increase. Motion x BA-46, as amended to show the City's share to be Ayes x x x x x $21,800.00 and the developer's contribution Noes x $4,400.00, was approved. Abstain x 6. BA-47, $11,000.00 increase in Budget Appropriations for construction of site improvements at the 16th Street Utility storage yard - Phase II, C-1942, from Unappropriated Surplus to Construct Motion x 16th St. Utility Storage Yard, Water Fund, was Ayes x x x x x x x approved. 7. A report was presented from the Community Develop- Eastbluff went Department regarding the groundwater study Drainage (2336) in t9e"B1uf"fs —area.-- Resolution No. 9254, authorizing the Mayor and _ R-9254 Cete an_agreement between the ity Clerk to excu Motion x City of`N&,wpoit Beach and James M. Montgomery Ayes x x x x x x Cosulting Engineers, Inc. for a study of the n Abstain x groundwater conditions in the Bluffs, was adopted. Cur ut "Abatements 8. A letter from Richard J. Huffman was presented requesting a delay in the closing of his curb_,___ — cut at 708 Jasmine Avenue since he is plate iag (687) to build a garage which could util e-f5e present curb cut. Richard Huffma ddressed the Council. r Volume 31 - Page 326 f Ay OF NEWPORT EACH `COUNCILMEN MINUTES lP q GO "4 S�gN�F��rG,�,sy ys oni i rni i December 19, 1977 -INDEX 10. The following expense accounts were approved; Expense Councilman Kuehn in the amount of $383,78 for Accounts attendance at the National Congress of Cities in San Francisco December 3 - 5; and Mayor Dostal in the amount of $655.13 for attendance at the N.O.I.S.E. Board of Directors' meeting, a meeting of the Environmental Quality Committee of the National League of Cities and the National Congress of Cities in San Francisco December 2 - 7. 11. The following budget amendments were approved: BA-41, $525.00 increase in Budget Appropriations for purchase of blackout drapes for the OASIS Center, from Unappropriated Surplus to PB&R- Senior Citizen, Furniture and Fixtures, Park and Recreation Fund. (A report from the Parks) Beaches and Recreation Director) BA-42 through BA-47 Removed from the Consent Calendar. ITEMS FROM THE CONSENT CALENDAR: 1. ATOVED port was presented from the Purchasing Budget Aged regarding wireless microphones. Amendments Motion x Counc Rogers made a motion to delete Ayes x x Budget �mendment No. BA-42 in the amount of Noes x x x x x $950.00 or the purchase of wireless micro- phones, ich motion failed to carry. BA-42, $95 00 transfer of Budget Appropriations for purebas of wireless microphones, from Motion x Unappropriat Contingency Reserve to Non - Ayes x x x x x x departmental, equipment, N.O.C., General ted. Noes x Fund, was a.. 2. BA-43, $16,000.00 increase in Budget Appropria- tions and deereas\inUnappropriated Surplus £or cement -mortar cast iron water Motion x pipe - West NewpoBalboa Peninsula, Ayes x x x x x x x Water Fund, was a. 3. A report was presrom the Community Development Depargarding the testing of land use and circular n alternatives using the Traffic Model, recommended by the Planning Commission, connection with the General Plan Review. BA-44, $12,000.00 increase in dget Appropria- tions for consultant services quired for testing of two land use alterna Ives and two modifications to the circulation yatem using the traffic model, from Unappropr ted Surplus to Develop Transportation Model-Ge eral Plan, General Fund, was also presented. \ Volume 31 - Page 325 • City Council Meeting December 19, 1977 • December 14, 1977 TO: FROM: SUBJECT: Suggested Action Agenda Item No CITY OF NEWPORT BEACH City Council Department of Community Development Groundwater Study of the Bluffs Area H-2(g) If desired, authorize a budget amendment in the amount of $24,000 of which $20,000 will be used to fund the City's share of the ground- water study of the Bluffs Area to be performed by James M. Montgomery, Consulting Engineers, Inc., per their Proposal #1. Approve Resolu- tion No, authorizing the Mayor to execute a contract with James M. Montgomery, Consulting Engineers, Inc., to perform the study. Background and Analysis At the meeting on December 12, 1977, the City Council authorized a study of the groundwater conditions in the Bluffs Area to determine if a groundwater problem exists, the source and destination of ground- water in the area, and to develop recommendations for mitigating the problems. The scope of work from the proposal is attached to this report for your review. The Council also determined that $4,000 of the cost of the study would be paid by the developer (Holstein Indus- tries), and the remaining $20,000 would be funded by the City. The staff is in the process of preparing a final contract with James M. Montgomery, Consulting Engineers, Inc. A resolution has been prepared for Council consideration which will authorize the Mayor to execute the contract with the engineers as soon as it is in its final form. •A budget amendment has been prepared to set up the account for payment of the contract. The City will contribute $20,000, and the developer will add the remaining $4,000 to the account. Recommendation If desired, approve the budget amendment for additional funds ($20,000) to fund the City's share of the groundwater study, and approve Resolu- tion No. which authorizes the Mayor to execute the contract with James M. Montgomery, Consulting Engineers, Inc., to perform the study as proposed. Respectfully submitted, R. V. HOGAN, Director DEPARTMENT OF COMMUNITY DEVELOPMENT By am- BEVERLY-' WOOD • Enviro'mental Coordinator BDW/kk Attachments for Council Only: 1) Scope of Work, James M. 2) Budget Amendment 3) Resolution to Authorize Montgomery Proposal No. 1 Execution of Contract Fj , -74. 4,' • M-W DAMES M. MONTGOMERY, CONSULTING ENGINEERS, INO. 17802 Sky Park Circle, Suite 201, Irvine, California 92714/ (714) 979-8733 August 5, 1977 v' Department of Community Development rreaslvIFD� p y p e, nt'nity City of Newport Beach X/, °eJ� Utnent City Hall - 3300 Newport Boulevard AUG J Newport Beach, California 92663 M, cIFY s= �NE14'PGRi 6Ek Attention: Mr. R. V. Hogan, Director CALt;:- Gentlemen: ° WATER RESOURCES DIVISION KARL H. WIF.UE FRED K. DUREN. 111. 1-AUL F. MEYERIIOFER IIONALD L. UARTO I In response to your recent request for proposals dated July 11, 1977, James M. Montgomery, Consulting Engineers, Inc., is pleased to submit proposals for both "The Bluffs Geohydrologic Study" and "The Bluffs Ground Water Interception Design Study". It is our understanding that separate presentations should be made for the two studies. As you know, our firm has recently completed a detailed hydrogeologic analysis of ground water flow regimen in the terrace deposits and fractured siltstone beds which surround the City's Big Canyon Reservoir. That study included exploratory drilling, permeability testing, ground water sampling, observation piezometer construction, recharge/percolation studies and dewatering considerations. In the past, our staff has also analyzed the City's ground water supply situation and performed analyses of the supply wells. The staff of James M. Montgomery has, for the past 15 years, undertaken detailed hydrogeologic studies for The Irvine Company, Irvine Ranch Water District, Costa Mesa County Water District, Orange County Water District, and the Cities of Santa Ana, Fountain Valley and Huntington Beach. These investigations have included subsurface mapping, water well location, design, construction, supervision and acjuiter testing; exploratory drilling with selective aquifer testing and trace mineral analyses; salinity barrier studies including monitoring well and piezometer design and construction; and, desalting studies. The nature of Montgomery's experience in ground water studies is more fully described in our attached Water Resources Brochure. The technical staff of geologists and hydrologists who would perform the studies described in Proposals No. 1 and No. 2, include Ralph Phraner and Karl Wiebe, hydrogeologists, and Fred Duren, engineering hydrologist. The background and qualifications of these individuals are shown on the attached bio-sketches. P L A N N I N G ... R E S E A R C H ... E N V I R 0 N M E N T A L E N G I N E E R I N G I r 1 -: f f• 14' . 1 Lf N f 1 '' ,a - a' A 17802 Sky Puk CIrdle. Sulu 201, Irvms. California 92714/(M) 979.8733 City of Newport Beach - 2 - August 5, 1977 The description of our services which are detailed in the two scopes of work also includes the services of our State licensed Water Quality Laboratory in Pasadena. Estimates of fees which should be budgeted for each study are presented at the end of both proposals. These fees are based upon the estimated time required and the hourly rates of the individuals above. A schedule of average rates for technical personnel classifications is attached. We look forward to discussing these proposals with your staff in more detail. If we can provide any additional information, please let us know. Very truly yours, Karl H. Wiebe Chief Hydrogeologist Epp Attachments 10 • PROPOSAL NO. 1 THE BLUFFS GEOHYDROLOGIC STUDY cc. ; 1 A/' 11,,. 7«l J •,� The purpose of this study is to investigate the source, occurrence a,�d + : movement of ground water in and through the study area, as defined in'tbei City of Newport Beach's request for proposal, dated July 11, 1977. The scope of studies may be defined as follows: PHASE I 1. Review all pertinent soils and geologic data and reports available within the City's files, and evaluate that data in relation to the proposed project. 2. Provide recommendations for additional data collection required, to include: a. Collection, review and evaluation of data, maps and reports from The Irvine Company, the • University of California, the California Department of Water Resources and the Orange County Environmental Management Agency. b. Detailed recommendations for exploratory drilling, piezometer construction and field mapping program to provide required additional surface and subsurface information. PHASE II 1. Drill and construct approximately 10 exploratory drill holes and piezometers, and conduct short-term pumping or "slug" tests to determine hydraulic properties of the aquifers. 2. Define and map the terrace/bedrock contact, insofar as possible, along the Bluffs and at the sites of the exploratory borings. • 3. Excavate and map backhoe trenches in seepage areas at base of the Bluffs along Backbay Drive and conduct limited -scale evapo -transpiration studies. 4. Conduct a detailed program of ground water sampling and mineral analyses, using advanced in-house constituent analytical techniques. • 0 S. From the available data, construct interpretive maps depicting ground water elevation contours, bedrock eleva- tions and thickness contours of the terrace materials. 6. When the above tasks are completed, the following items of work would be undertaken: a. Determine the character of the underlying aquifers. b. Determine whether flows are confined to the bedrock - terrace interface and provide supporting information. C. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. d. Determine whether areas outside the Bluffs contribute ground water to the study area. e. Determine existing flow direction(s) of subsurface waters. f. Compare bedrock elevation data to ground surface elevations to delineate areas which may experience potential problems from the buildup of ground water. g. Estimate the quantity of subsurface inflow and outflow in the study area. 7. Provide recommendations for location and installation of permanent observation and monitoring facilities. 8. Summarize limitations of study. 9. Prepare a final report describing the ground water regimen and provide conclusions regarding the source, movement and ultimate destination of ground waters in the area. 10. Provide detailed recommendations for remedial measures, including modification of patterns and application rates of irrigation waters and the design of potential dewatering facilities. Based upon our understanding of the level of effort required to complete tasks included in Phase I and II, and in consideration of the hourly rate schedule presented in Appendix A, we recommend that $24, 000 be budgeted for the completion of the work in Proposal No. 1. -2- r1 U CITY OF NEWPORT BEACH REQUEST FOR FUNDS • TO: Finance Director FROM: Department of Community Development SUBJECT: REQUEST FOR FUNDS - BA-46 • Date December 14, 1977 Request for additional funds, $24�,.000. Funds are not available in the current budget. Additional appropriation to Account # 022997158 is requested. Additional funds are needed for: The City will fund $20,000 of a $24,000 Groundwater Study of the Bluffs Area of the City. The additional $4,000 of the cost will be deposited by the developer (Holstein Indust'ries) into the account. The consultant who will perform the study is James M. Montgomery, Consulting Engineers, Inc. Request for transfer of'funds, $ Transfer from Acount # Funds are available in the current budget. Transfer of funds is needed for: Approved: City Manager Finance Wrector to # RESOLUTION NO. 9 25 4 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH AUTHORIZING THE MAYOR AND CITY CTERK TO EXECUTE AN AGREEMENT BETWEEN THE CITY 04 NEWPORT BEACH AND JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. FOR A STUDY OF THE GROUNDWATER CONDITIONS IN:THE BLUFFS WHEREAS, there has been presented to the City Council of the City of Newport Beach a certain agreement between the City of Newport Beach and James M. Montgomery Consulting Engineers, Inc. in connection with a study of the groundwater conditions in the Bluffs; and WHEREAS, the City Council has reviewed the terms and conditions of said agreement and finds them to be satisfactory and that it would be in the best interest of the City to authorize the Mayor and City Clerk to execute said agreement; NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Newport Beach that said agreement above described is hereby approved, and the Mayor and City Clerk are authorized and directed to execute the same on behalf of the City of Newport Beach. ADOPTED this 19th day of December , 1977. Mayor ATTEST: City Clerk DDO/bc 12/16/77 CITY OF NEWPORT 8E CH COUNCILMEN \XT2y\?y� � December 19, 1977 MINUTES P6720 HULL LALL \ Motion ` ^ x BA-44 is to be brought back to the Study Session Ayes x x x x x'-x x and the evening meeting on January 9 with justifi- cation for the budget request plus a complete, up-t -date analysis. 4. BA-45, $�:00 increase in Budget Appropria- tions and decrease fiC Unappropriated Surplus for street improvements'to Irvine -Avenue in connection with the construction of the Irvine-Baycrest storm drain from Unappropriated Surplus`to--, Motion x Street Improvements/Irvine Avenue, State Gas Tax - Ayes x x x x x x x Fund (Sec. 2106), was approved. 5. BA✓46 `$20,000.00_increase_in Budget Appropria- ti_o_ns and increas_g_in Revenue Estimates, groundwater__ study of the Bluffs--Area-of-the Cif.= LQ V_dQ to bq_donated by_ the developer„ from Unappropriated Surplus and Donations and Contributions, General Fund, was presented. Community Development Director Dick Hogan stated that he had been informed by the contractor that since their proposal had been submitted last July and the work could not begin until February, there would be an increase in cost estimated to be $2,200, and that the proportionate share of this increase for the developer would be $400.00. Jim Dooley, representing Holstein Industries, addressed the Council and stated they would be willing to pay their proportionate share of the increase. Motion x BA-46 as amended to show the City's share to be $21,800.00 and the developer's contribution Ayes x x x x x $4,400.00, was approved: Noes x Abstain x 6. BA-47, $11,000.00 increase in Budget Appropriations for construction of site improvements at the 16th Street Utility storage yard - Phase II, C-1942, from Unappropriated Surplus to Construct Motion x 16th St. Utility Storage Yard, Water FuZwasAyes x x x x x x x approved. 7. A report was presented from the Commun Eastbluff ment Department regarding the groun ter study Drainage in the Bluffs area. (2336) Resolution No. 9254, au- ing the Mayor and R-9254 City Clerk to execute a agreement between the Motion x City of Newport Beaqand James M. Montgomery for of the Ayes x x x x x x Consulting Engine s, Inc. a study Abstain x groundwater co ditions in the Bluffs, was adopted. S. A letter rom Richard J. Huffman was presented Curb Cut a delay in the closing of his curb Abatements Xring 708 Jasmine Avenue since he is planning (687) ld a garage which could utilize the present curb cut. Richard Huffman addressed the Council. r'r Volume 31 - Page 326 f� CITY OF NEWPORT BEICH COUNCILMEN GO \onl 1 rAl 1 December 19, 1977 MINUTES INDEX 10. The following expense accounts were approved: Expense Councilman Kuehn in the amount of $383.78 for Accounts attendance at the National Congress of Cities in San Francisco December 3 - 5; and Mayor Dostal in the amount of $655.13 for attendance at the N.O.I.S.E. Board of Directors' meeting, a meeting of the Environmental Quality Committee of the National League of Cities and the National Congress of Cities in San Francisco December 2 - 7. 11. The following budget amendments were approved: BA-41, $525.00 increase in Budget Appropriations for purchase of blackout drapes for the OASIS PB4R- Center, from Unappropriated Surplus to Senior Citizen, Furniture and Fixtures, Park and Recreation Fund. (A report from the Parka, Beaches and Recreation Director) 1A-42 through BA-47 Removed from the Consent Calendar. ITEMS REM D FROM THE CONSENT CALENDAR: 1. A repo t was presented from the Purchasing Budget Agent regarding wireless microphones. Amendments t Motion x Councilman Rogers made a motion to delete Ayes x x Budget Amendtoent No. BA-42 in the amount of Noes x x x x x $950.00 for tale purchase of wireless micro- phones, which motion failed to carry. BA-42, $950.00 tra4sfer of Budget Appropriations for purchase of wirb ess microphones, from Motion x 'Unappropriated Contidkency Reserve to Non - Ayes x x x x x x departmental, Equipment, General Noes x Fund, was approved. 2. BA-43, $16,000.00 increase �n Budget Appropria- tions and decrease in Unapp opriated Surplus for cement -mortar lining cast'4ron water Motion x pipe - West Newport and Balboa eninsula, Ayes x x x x x x x Water Fund, was approved. 3. A report was presented from the Co unity Development Department regarding the sting of land use and circulation alternati s using the Traffic Model, as recommendedipy the Planning Commission, in connection `r, h the General Plan Review. BA-440 $12,000,00 increase in Budget Appropri Lions for consultant services required for testing of two land use alternatives and two modifications to the circulation system using the traffic model, from Unappropriated Surplus to Develop Transportation Model -General Plan, General Fund, was also presented. i Volume 31 - Page 325 AY OF NEWPORT BEWH COUNCILMEN PO�0 6 cl c�s,C�qP��� December 12, 1977 MINUTES ROLL CALL Mayor Dostal opened the public hearing regarding General General Plan Amendment 77-3, Parts C and D, as Plan follows: (673) 77-3-C: A proposed amendment to the Residential Growth Element to revise the definition of "buildable acreage" to exclude areas dedicated for park purposes and areas to be used for street purposes. 77-3-D: A proposed amendment to the Land Use and Residential Growth Elements creating a new density category of "High Density Residential -- Greater than 10 DU's per Buildable Acre," and amending the Land Use Plan and Residential Growth Plan maps as appropriate. A report as presented from the Community Developmen Department. Motion x The hearing wa closed after it was determined Ayes x x x x x x x that no one desir d to be heard. It was agreed to take straw vote on parts C and D separately before a m ion to approve. Motion x General Plan Amendment segme t 77-3-C was approved. Ayes x x x x x Noes x Absent x Motion x Councilman Ryckoff made a motion to ap ove Ayes x x x General Plan Amendment segment 77-3-D, wh ch Noes x x x motion failed to carry. Absent x Motion x Resolution No. 9231, accepting the Negative R-,9231 Ayes x x x x x Declaration and approving General Plan Amendment Noes x 77-3-C, was adopted. Absent x Mayor Pro Tem Barrett resumed his seat at the Council table. CONTINUED BUSINESS: 1. Mayor Pro Tem Barrett stepped down from the Council table due to a possible conflict of interest on this item of business. A report was presented from the Community Develop- Eastbluff ment Department regarding a request initiated by Drainage the City of Newport Beach, Holstein Industries (2336) and the Bluffs Homeowners' Association to authorize a study of the groundwater conditions in the Bluffs area. A report was presented from the City Attorney. A letter from The Irvine Company declining to participate in the funding of the groundwater study was presented. Volume 31 - Page 308 C*Y OF NEWPORT BACH COUNCILMEN anir ceri � Regular Council Meeting Place: Council Chambers Time: 7:30 P.M. Date: December 12, 1977 MINUTES fTd>314 Present x x x x x x x Roll Call. Motion x Mayor Pro Tem Barrett made a motion to waive the reading of the Minutes of the. Regular Meeting of November 28, 1977, approve as written and order filed. Councilman Kuehn asked that the motion be amended to correct the vote on the second item under "Current Business" to reflect her negative vote on that item, which amendment was accepted by the maker of the motion. Ayes x x x x x x A vote was taken on Mayor Pro Tem Barrett's amended motion, which motion carried. ng in full of all ordinances and resolutions Motion x sideration was waived, and the City Clark was Ayes x x x x x x x to read by titles only. : r Dostal opened the public hearing regarding Tract 10135 entative Map of Tract No. 10135, a request Istreet i rd R. Cantrell, to establish one lot e ur lots now exist to permit the conversion eight residential units into an eight -unit identi 1 condominium complex on property ated at 421 - 427 East Bay Avenue, on the thwester corner of East Bay Avenue and Adams lbPeninsula, zoned R-3. eet on th B\Ve A report was from the Community Develop- ment Departme Lawrence WilsPresident of Robert Hein, William Frostciates, representing the owner, addresouncil and stated they were in agreement with the commendations and condi- tions of the Planning C ission and that he was present to answer any que tions. Motion x The hearing was closed afte it was determined Ayes x x x x x x x that no one else desired to heard. Motion x The Tentative Map of Tract No. 0135 was approved, Ayes x x x x x x x incorporating by reference the f dings and conditions recommended by the Pla ing Commission and with the additional condition t at a require- ment for an enforceable method of re abilitation or replacement of structures be added the CC&R's. 2. Mayor Pro Tem Barrett stepped down from t e Council table due to a possible conflict o interest on this item of business. Volume 31 - Page 307 y AY OF NEWPORT BACH COUNCILMEN 00 o C a\ q '2 9C O� tp GN i rA\ T �\ \ December 12, 1977 MINUTES Motion Ayes Noes Absent x x x x x x x x James Dooley, representing Holstein Industries, addressed the Council and suggested that the study be a condition of their maps, and that they be allowed to file their maps. William Holstein addressed the Council and stated they were willing to pay their fair share for the study. Proposal No. 1 of James M. Montgomery, Consulting Engineers, Inc. was authorizefl at an approximate cost of 24,000.00.with Holstein_ Industries, Inc. to pay approximately $4,000`00 of that cost,4 and it was directed that Holstein ?ndustries be allowed^to go_ahead and _file their, subdivision maps concurrent with the study. Mayor Pro Tem Barrett resumed his seat at the Council table. Motion x 2. Councilman McInnis, Chairman, gave a verbal report on the recommendations of the Council Appointments Committee regarding the vacancy on the Planning Commission. Timothy Haidinger was appointed to the Planning Planning Comsn (530F) Ayes x x x x Commission to fill the unexpired term of Larry Noes x x x Lynch ending June 30, 1981. 3. Councilman Rogers' (District 1) app/ntra Litter Motion x Nancy Moore as a member of the LittCAC Citizens Advisory Committee to fill(2046) Ayes x x x x x x x unexpired term of Anita J. FergusonDecember 31, 1977, was confirmed. 4. The request for assignment of the Armstrong Motion x oil production from Armstrong Pe oleum Corpora- tion to Partnership Properties -ompany and Petro -Lewis Corporation was ferred to the Petroleum (122) Ayes x x x x x x x staff for further study. 5. A letter from Craig De opment Corp.'was pre- sented asking Counci to reconsider its decision of October 11, 1977 enying Harbor Permit Application #134- by Eddy Meredith requesting an exception to he Harbor Permit Policies to Harbor Permit (304F) Motion x allow the con ruction of a cantilevered deck over County idelands at If38 Linda Isle. A repor was presented from the Marine Department. Bec se the applicant has secured an approved Ayes x x x x x x x a roachment permit fiom the Orange County Board f Supervisors, and because the State Lands Division has no objection to the issuance of the permit, Harbor Permit Application #134-38 was reconsidered and approved. 6. A report from the City Manager concerning the Newport Center Branch Library was presented with Library (2030) r�� / a report from the City Librarian and a letter of recommendation from the Board of Library Trustees. Volume 31 - Page 309 CRY OF NEWPORT BE*H COUNCILMEN 0 4 m �\ � i y 0 A G O oc��� I' 'A� ROLL CALL December 12, 1977 MINUTES Motion x Mayor Pro Tem Barrett made a motion to approve 1, Alternate "C", which is to construct a 14,000 square foot building using new -a _design; to include an inflationary factor; and to direct the staff to implement. City Librarian Brad Simon gave a brief staff report in answer to questions by the Council. \ Spencer Covert, Chairman of the Board of Library Trustees, addressed the Council regarding Option "C" and reiterated their request that a 10% inflationary factor be added. Councilman Ryckof£ made the following statement for the record: "Although I believe a 10,000 square -foot branch library would be quite adequate, and so voted in the past, I will support this motion because the Council previously committed to the 14,000 square -foot size building. do feel that the "C" option is the best of the tee offered." Ayes x x x x x x x A to was taken on Mayor Pro Tem Barrett's mots n, which motion carried. CURRENT BUS NESSI 1. A report was presented from the Community Tract 8336 Developme t Department regarding the Final Map of Tract N . 8336, a request of Newport View, Inc. to sub vide 20.801 acres into ten building sites, four is for landscaping and parking and one model com ex site for condominium develop- ment on proper located south of Hospital Road and southeaster) of Superior Avenue in the Planned Community of Versailles -on -the -Bluffs, zoned P-C. Chet Stare, represen ing the developer, addressed the Council and agree to modify their CC&R's to incorporate a conditio regarding an enforceable method of rebabilitatin or replacing structures. Motion x Mayor Pro Tem Barrett mad a motion to approve the Final Map of Tract No. 336, incorporating by reference the condition r commended by the Planning Commission and stipu ating an additional condition in the CC&R's for de troyed or damaged structures; to instruct the Cit Engineer not to sign the Final Map until the con tions relating to the fire access have been sati ied; and to adopt Resolution No. 9232 authoriz g the Mayor R-9232 and City Clerk to execute agreement between the City of Newport Beach and Newport Vi , Inc. for construction of improvements in Tract No. 8336 (south of Hospital Road and southeasterky of Superior Avenue, Versailles -on -the -Bluff, The following residents of Newport Crest a dressed the Council and opposed the project: Louis Greeley, Chairman of the Legislative Committ , and Dorothy Parker. Volume 31 - Page 310 01 0 City Council Meeting December 12, 1977 December 7, 1977 TO: FROM: SUBJECT: Agenda Item No CITY OF NEWPORT BEACH City Council Department of Community Development di F-1 Request to authorize a study of the groundwater conditions in the Bluffs in connection with the preparation of an updated Environmental Impact Report, and approval of the cost allocation. INITIATED BY: The City of Newport Beach, Holstein Industries, and the Bluffs Homeowners Association Suggested Action If desired, authorize a study of the groundwater conditions in the Bluffs area to be performed by James M. Montgomery, Consulting Engineers, Inc., per their Proposal #1, dated August 5, 1977; and specifically allocate the cost of the study; OR Authorize the study of groundwater conditions related only to Tracts 8681 and 8682, to be performed by John Mann as part of the update of the Environmental Impact Report on the subject project. Background and Analysis At the City Council meeting on November 14, 1977, the staff was directed to provide additional information supplemental to the staff report prepared for council's review on that date. Specifically, the Council asked for the following information: 1. A definition of what the City staff considers to be the groundwater problem in the Bluffs Area, including expert data where possible. 2. A legal opinion from the City Attorney regarding the legal liability of the City, The Irvine Company, the Homeowners' Association, and Holstein Industries to study and/or resolve the groundwater problems. An indication of whether or not The Irvine Company is willing to cooperate with the City and/or the developer in financing the James M. Montgomery Proposal #1. In response to the first item, the City's Grading Engineer has pre- pared a report discussing the general conditions in the Bluffs Area. This report incorporates information previously submitted in several geotechnical investigations as well as field inspections,performed as recent as November, 1977. (See attached report and illustration.) The City Attorney has prepared an opinion which addresses itself to the second point as to legal responsibilities. It appears that there is no clear liability as to the solution to the problem until the groundwater condition itself is specifically defined, which is the intent of Montgomery's Proposal No. 1. A copy of the Attorney's report is attached. TO: City Council - 2. Finally, The Irvine Company has been apprised of the situation. The information regarding the project, including the proposals under consideration, has been transmitted to them for their review, and they have been requested to respond, indicating their willingness to participate. To date no officail response has been forwarded to this department, but it is anticipated that they will be prepared to answer our request by the Council meeting on Decem- ber 12, 1977. Recommendation In view of the additional information and legal interpretation, the alternatives and recommendations as presented in the November 14, 1977 staff report appear to remain valid. That report is attached for your reference. It is hoped that input from The Irvine Company will be available for Council consideration at the meeting on December 12, 1977. Depending on their response, the scope, cost and shared expense of the environmental studies to be performed, as suggested in the previous staff report, may be considered with the additional information provided here, and a determination made to facilitate the developers' request to proceed with his application. Respectfully submitted, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, Director/ By !'n,.(�' /v,? BEV RLY�IT. WOOD i Environmental Coordinator BDW/kk Attachments for Council only: 1) Report from Grading Engineer 2) Report from City Attorney 3) Staff Report of 11/14/77 • 11/21/77 SUBMITTED BY: Jim Evans, Grading Engineer BLUFFS GROUNDWATER: Analysis of Existing Conditions Staff has concluded that groundwater conditions exist which could lead to serious problems, although little evidence is visible at this time. This opinion is based upon information supplied in the April 1976 report by Evans, Goffman and McCormick for the areas currently proposed for development, observations made around the perimeter of the Bluffs area, and complaints by residents over a period of years. No record of recent complaints from area residents has been observed. This is id contrast to numerous complaints particularly during the rainy season prior to 1976. Unfortunately, no complaint records were kept during that time period so verification is only by individual memories. The drop in the number of complaints can be explained by the concurrent consideration of development for these tracts as well as the drought conditions and attention to landscape irrigation. The minimal amounts of rainfall would tend to reduce the amount of water penetrating into the ground, as would the reported 20% reduction in the amounts of irrigation water used for landscaping. Contribution to the groundwater system has not been eliminated however. Examination of the bluff perimeter the week of November 21, 1977 revealed numerous springs, seeps and damp areas along the perimeter slopes of the tract (see attached sketch). In addition, groundwater was observed during soils exploration and testing for proposed Tract 8681 by Evans, Goffman, and McCormick. No free groundwater was observed for Tract 8682 during the same investigation, possibly due to a different type of bedrock. A recent report prepared for a church site by Pacific Soils Engineering dated June, 1977 located on Mar Vista revealed groundwater contained in bedrock fractures below the contact between the terrace materials. Reports recently submitted by Soils International, the soils and geology consultant involved with the original development and prepared over an interval between 1965 to 1971, indicates that at least some of the problems occurring subsequent to development required remedial subdrain installation. All of the above data lead staff to conclude that additional information and study is required to fully comprehend, anticipate, and remedy potential problems due to groundwater flow. A number of bluff failures in Newport Bay have occurred in recent years due almost solely to groundwater conditions, some of which have endangered public improvements. Whether future problems will be observed in homes within the development is only a guess without additional study. 7, Bluffs Groundwater Conditions X X X X DAMP ARCA5/ EPHEMERAL 5PRING6 OOrrr% M51ING SPRING5 Big Canyon !a Rd. 0 AGYAW-E PLANNG44 4KAPH165 • COMM. DEv. PUT. It-V-71 El To: From: Subject: c r RF• 1� r V.; 1� i• O�C' GS 20���4�, CITY OF NEWPORT BEACH Office of CITY ATTORNEY The Honorable Mayor and Members of the City Council City Attorney Groundwater Problem In The Bluffs December 12, 1977 At their meeting of November 14, 1977, the City Council reviewed a report from the Community Development Department relating to alternative proposals for groundwater studies in the Bluffs area. This office was requested to review the legal liability as to the party or parties responsible for studying and correct- ing the groundwater- problem in the Bluffs. Unfortunately, we are unable to assign this responsibility because of the lack of knowledge as to the origin, source and flow of the groundwater. To date, the City's experts have suggested the following sources or combination of sources as the possible cause of the problem: area; 1. City water main and sewer trunk lines in the 2. Metropolitan Water District distribution line; 3. Natural underground springs; 4. Overwatering by homeowners association or individual homeowners; 5. Fractured private homeowner water and/or sewer lines or swimming pool foundations. Without knowing the specific source or sources -of the .--oundwater, equally valid argumonts could be made for holding the City, the L] N, The Honorable Mayor and Members of the City Council December 12, 1977 Groundwater Problem In The Bluffs landowner, the lessee or the developer liable for investigating and correcting It would, therefore, seem that it would of all parties concerned to share in a reach a solution to this problem. DDO/bc cc: Community Development Director individually or jointly the groundwater situation. be in the best interest cooperate effort to DENNIS D. O NEIL City Attorney City Council Meeting November 14, 1977 Agenda Item No. G-1P, CITY OF NEWPORT BEACH November 8, 1977 TO: City Council FROM: Department of Community Development SUBJECT: Alternative Propos Request to authorize a study of the groundwater conditions in the Bluffs in connection with the preparation of an updated Environmental Impact Report, and approval of the cost allocation. INITIATED BY: The and they of Bluffswport HomeownerspHolStein Industries, Association Suggested Action If desired, authorize a study of the groundwater conditions in the Bluffs area to be ,performed by James M. Montgomery, Consulting Engineers, Inc., per their Proposal #1, dated August 5, 1977; and specifically allocate the cost of the study; OR Authorize the study of groundwater conditions related only to Tracts 8681 and 8682, to be performed by John Mann as part of the update of the Environmental Impact Report on the subject project. Back4round Plans for the development of Tracts No. 8681 and 8682 (see location map attached) were initially submitted to the City in May 1973., and subsequently approved by the City Council along with the certifica- tion of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Planning Commission levels. On December 13, 1976, the Council denied a request to extend Use Permits No. 1730, 1731 and the Tentative Tract Maps No. 8681 and 8682, primarily because of the concerns raised regarding the lack of information to fully analyze the groundwater conditions present in the area. At the time the request was made for the extension of the use permits and tentative maps, the applicant (IDH, a Joint Venture, Costa Mesa) and the City staff recommended the following definition of the groundwater studies to be performed in response to the concerns of the Commission and the homeowners' association. The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, groundwater studies which will determine the major sources of subsurface waters, the general direction of groundwater movement, the probable destination of under- ground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to alleviate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to perform the tasks and determine the appropriate share of the costs to be paid by the developer." r , 0 TO: City Council - 2. This clarification was intended to establish the City's intent in requiring the necessary studies. It is the applicant's intention at this point to prepare materials and file the necessary applications to reactivate the proposed project, In so doing, it has been determined that it is necessary to update the certified EIR and include further information regard- ing groundwater conditions. In view of the previous discussions on this subject, and given that the City must contract with the consultant to prepare the necessary documentation, the staff initiated a request for proposals to per- form a variety of groundwater studies in connection with the use permit and tentative map applications. Proposals were received in August from several consultants and subsequently evaluated by the staff. Four alternatives were selected, discussed with the appli- cant, and forwarded to the Bluffs Homeowners' Association for review and comment. These included the following: 1. James M.. Montgomery, Proposal 111: A complete study of the groundwater conditions over the entire Bluffs Area. Cost: Approx. $24,000 2. James M. Montgomery, Proposal 112: An intercept design study to remedy existing problems in con- junction with data generated in Proposal #1. This study includes a future groundwater condition monitoring system. Cost: Approx. $11,000 3. Leighton & Associates: An intercept design study to remedy existing problems in the Bluffs Area. The monitoring capability is not included in this proposal. Cost: Approx. $21,500 4. A study limited to groundwater conditions in the subject parcels, sufficient for the purposes of inclusion in an Environmental Impact Report and complete enough to determine environmental find- ings for the subject project. Cost: Approx. $4,000 Alternatives and Recommendations Further analysis of each of these proposals is included in the attachment to this report, as well as the staff's evaluation of the benefits of each of the studies. To date the Bluffs Homeowners Association has not officially indicated to the staff any prefer- ence for selection of the study consultant or the type of study to be performed. There also has been no indication of a willingness to share the costs, although the information derived from the studies would be of benefit to the City and the Homeowners' Association as well as satisfying the environmentalimpact analysis requirements of the subject project. The applicant has forwarded a written response, which is attached to this staff report, stating the position of Holstein Industries on this matter. It is the staff's recommendation that the City Council authorize the groundwater study to be performed by James M. Montgomery, Consulting Engineers, Inc., and that the study include Proposal #1. This pro- posal will provide a complete assessment of the groundwater conditions in the Bluffs Area, and it will fulfill the intent of the study as recommended in December 1976. The information should be sufficient to make an environmental determination on the project. Three alter- native cost allocations to accomplish the study are suggested for TO: City Council - 3. Council consideration as follows: Equal cost sharing among the City, the Homeowners' Association and Holstein Industries ($8000 each). Equal share between the Homeowners' Association and Holstein Industries ($12,000 each). 3. Equal share between the City and Holstein Industries ($12,000 each). In the event that either the City or the Homeowners' Association fail to participate, then the staff recommendation would be to proceed with Study #4 to be accomplished by John Mann,under contract to the City, which would be a study of groundwater conditions limited to the subject parcels. The information would be sufficient for the groundwater section of the Environmental Impact Report update, and this study would constitute the minimum requirements for proceeding with the application for the proposed project. The cost of the study ($4000) would be paid by the applicant through the normal administrative procedures of Environmental Impact Report preparation. Respectfully submitted, DEPARTMENT Of COMMUNITY DEVELOPMENT R. V. HOGAN, Director By BE ERL . WO D Environnental Coordinator BDW/kk Attachments for Council Only: 1 Location Map 2 Staff Report for last Council action - 12/13/76 3 Memo from Grading Engineer - 6/1/77 4 Request for Proposals - 6/9/77 5 Staff Evaluations of Study Proposals - 9/8/77, 9/27/77 6 Letter from Holstein Industries - 10/25/77 1 �. � ys4♦ ST _ N +•r [j UN VA ST i !\ �3 . rY r�ln�•�� `t�lil•r-4�l'A• �� CW _ yu V• �'rty ' �/� . city of Newport Beach +P4RXEN'- ►LINMN1Ntr O+V+SIOM (o10"Tf 'fpp ROI SCALE IN FEET • 4 City Cgunc11 Meeting Decembep 13, 1976 Agenda Item No. G-4 CITY OF NEWPORT BEACH December 8, 1976 TO: City Council FROM: Department of Community Development SUBJECT: Use Permit No. 1730 (Extension) Request to permit the construction of seven attached single-family dwellings with related parking and landscape areas. AND Tentative Map Tract No 8682 (Extension) Request to subdivide 1.65 acres into seven numbered lots for attached single-family residential develop- ment and one numbered lot to be developed as a land- scape area, private driveways and guest parking spaces. LOCATION: Lot 89, Tract 5878, located at 2122 Vista Entrada, westerly of Vista del Oro and easterly of Vista Entrada in "The Bluffs." ZONE: R-4-B-2 PRD APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: Valley Consultants, Inc., Huntington Beach SUBJECT: Use Permit No 1731 (Extension) Request to permit the construction of seven attached single-family dwellings with related parking and landscape areas. AND Tentative Mai Tract No. 8681 (Extension) Request to subdivide 1.75 acres into seven numbered lots for attached single-family residential develop- ment and one numbered lot to be developed as a land- scape area, private driveways and guest parking spaces. LOCATION: Lot 125, Tract 54350 located at 1976 Vista Caudal, southwesterly o•f Vista del Oro and northeasterly of Vista Caudal in "The Bluffs." ZONE: R-4-B-2 PRO APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: I Valley Consultants, Inc., Huntington Beach ..., -,.w.,.p...... TO: City Council - 2. Applications This is a request to extend the approval of four applications which propose to subdivide and develop two sites in the Bluffs which were formerly planned and designated for the construction of high-rise residential structures. The applications as approved by the Plan- ning Commission and City Council would allow the construction of a total of fourteen dwelling units at a density and of a size, height, bedroom count, and architectural design in harmony with immediately surrounding dwellings. Plans for the development of these sites were initially submitted to the City in May, 1973, and subsequently approved by the City Council along with the certification of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Commission levels. An Approval in Concept was issued on August 25, 1975, and a permit was subsequently requested from the Regional Coastal Commission. The Coastal Commission denied the application on January 5, 1976. A second Approval in Concept was issued by the City on June 21, 1976. However, inasmuch as the sites will no longer be within the permit boundary of the Coastal Zone after December 31st of this year, the applicant has decided not to pursue the matter further with the Coastal Commission. City approvals will expire on November 27th (i.e., eighteen months following the last City Council action) unless the applicant's request fo,r an extension is approved. This matter was considered by the Planning Commission at their meet- ing of October 21, 1976. At that time there was considerable discus- sion as to whether this request should be considered as a discussion item or set for public hearing. The Commission subsequently deter- mined that they would start out by considering this matter as a discussion item, and the staff was directed to notify the Community Association and bring back the complete background materials on November 4, 1976. Procedures related to Planned Residential Develop- ments are set forth under Chapter 20.51 of the Municipal Code. Ap- plicable sections pertaining to tentative and final subdivision maps are located under Chapters 19.12 and 19.16. Suggested Action If desired, approve the extension of the Tentative Maps of Tracts 8682 and exceed two years (November 27, 1978), to the conditions imposed by the City or if desired, deny the request. Plan_ninoCommission Recommendation Use Permits 1730 and 1731 and 8681 for a period of not to with the findings and subject Council on May 27, 1975 At its meeting of November 4, 1976, the Planning Commission voted (5 Ayes, 1 No and 1 Absent) to recommend to the City Council that the request for the extension of Use Permit No. 1730 and No. 1731 and the Tentative Maps of Tracts No. 8682 and 8681 be denied. At the time this matter was before the Commission, there was discus- sion regarding the Commission's recent recommendation and subsequent adoption by the City Council of an amendment which would prohibit the extension of use permits beyond the initial approval period. In addition, there was considerable discussion regarding new soils and geology reports which had been prepared subsequent to the approvals granted by the City in May of 1975. Specifically there was a concern that some of the conditions of approval pertaining to drainage, ground water, seepage, soil erosion, etc. were not as explicit as they should be and needed clarification. A copy of the Planning Commission minutes from the meeting of November 4, 1976 is attached. TO: City Council - 3, Since the Planning Commission meeting of November 4, 1976, the staff has met with the applicant and developed language, in response to the concerns of the Commission and the homeowners' association, which could be incorporated into the minutes of the City Council's consideration of this matter and would establish the City's intent in requiring the necessary studies without modifying any of the existing conditions of approval. The sug- gested language is as follows: "'The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, ground water studies which will determine the major sources of subsurface waters, the general direction of ground water movement, the probable destination of underground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to allevi- ate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to perform the tasks and determine the appropriate share of the costs to be paid by the developer." If the City Council concurs with this suggestion, it would be the intent of the Department of Community Development to retain the services of Dr. John Mann to perform the necessary studies. Dr. Mann has already submitted a proposal to the City with an estimated cost of $4900.00. If the City Council grants the extensions as requested by the applicant, it would be the intent of the Department to require the applicant to share in the cost of the studies. Respectfully submitted, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, Director By vnr .... ... u..n.vorn Ass stant Oirector - Planning ` JON/kk Attachments for Council Only: 1) Vicinity Maps 2) Excerpt of the minutes from the Planning Commission meeting of November 4, 1976 3) Planning Commission staff report dated October 28, 1976, with attachments. %_wroRr • • (�s Department of Community Development DATE: June 1, 1977 TO: Director FROM: Grading Engineer SUBJECT: Ground water studies required for Tract 8681-8682, Holstein Industries The ground water problems in the Bluffs development resolve themselves into two separate elements. The first and apparently most sensitive is that of ground water seepage into garage and home areas. The second and of greater concern to Public Works as well as to individuals living along the perimeter of the Bluffs is that of long term stability of the escarpment. The first problem is dealt with in the Evans, Goffman Report. This problem is and should be one considered as part of construction development. The recommendations dealing with this aspect are standard solutions generally provided by the soil engineering profession. One improvement'on these standard recommendations is possible and I think, -should be required in construction of the proposed buildings. The subdrains around the perimeter of the building should be constructed with designed filters for the soil. This process is not generally used due to the expense, but is a far more permanent solution than the general practice. Filter fabric could be used instead of a graded soil filter material. This extra design should only be required on those lots where the bedrock -terrace contact is exposed or is near ground surface. Drainage behind retaining walls should be required as a minimum for all units. The second problem is a larger scale problem dealing movement of ground. water in the Eastbluff area. The in the North Bluff area was only partially dealt wit! since the approach was to determine how much water w in the common areas exceeding the plant requirements the North Bluff areas were not considered as part of tive directions of flow other than the known problem considered. with the source(s), and source(s) of ground water in the John Mann Study s being placed on the ground Contributions from outside the study nor were alterna- area along the bluff edge These factors should be considered as part of any new study on Eastbluff. These considerations require that the following scope of work be used: PHASE I 1). Review all pertinent soil and geologic data in the City's files. 2). Evaluate these data for pertinence to the proposed project. 3). Provide recommendations to the City if additional data are required which are not included in the City's files. a 0 Memo: To: Director re: Ground water studies for Tract 8681-8682 June 1, 1977 Page 2 PHASE II 4). Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5). Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6). Determine whether areas outside the Eastbluffs development contribute ground water to the area. 7). Determine existing flow direction(s) of subsurface waters. 8). Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9). Provide recommendations for location and installation of permanent monitoring devices. 10). Summarize limitations of the study. 11). Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. It would seem prudent to request proposals from other well qualified firms. These include: Glen Brown of LeRoy Crandall & Associates, and James Montgomery & Associates. This procedure may lead to a better proposal since several pro- posals could be compared on their merits. A study similar to the earlier John Mann investigation is not recommended at this time. The basis for this is that the earlier study had limitations which may be offset by the scope of work described above, and this scope of work will include a secondary evaluation of the earlier work to apply this to a different area. JIM EVANS JE:rw Olt CITY OF NEWPORT BEACH CALIFORNIA June 9, 1977 Gentlemen: City Hall 3300 W. Newport Blvd. Area Code 714 673-2110 The City of Newport Beach invites your proposal for the preparation of a report on groundwater conditions in "The Bluffs." (See attached map.) This request is being solicited in response to the plans of Holstein Industries to subdivide two sites within the area for single family residential development. These sites are shown on the attached map and designated as Tracts 8681 and 8682. Use permits, tentative subdivision maps and an environmental impact report have previously been approved by the City. However, these approvals have since expired. The new proposal is identical to the previously approved request, however, in this case, the City is desirous of obtaining additional information as to the source and movement of ground water thru the sites and the surrounding area. A general scope of work to be performed is outlined below: PHASE I 1. Review all pertinent soil and geologic data in the City's files. 2. Evaluate the data in relation to the proposed project. 3. Provide recommendations to the City if additional data are required which are not included in the City's files. PHASE II 4. Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6. Determine whether areas outside the Bluffs development contribute ground water to the area. 7. Determine existing flow direction(s) of subsurface waters. Proposal in connection with ground water condition in "The Bluffs." Page 2. 8. Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9. Provide recommendations for location and installation of permanent monitoring devices. 10. Summarize limitations of the study. 11. Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. If you are interested in submitting a proposal for this project, we would appreciate hearing from you by Your proposal should list the services you will provide. Your fees should be based on your standard hourly charges with a stipulated maximum fee. Please include in the proposal the name and qualifications of the geologist(s) who will be performing the studies. You should familiarize yourself with the types of information already available prior to submitting a proposal. Please contact Jim Evans, City Grading Engineer, or myself if you need any additional informa- tion or have any further questions. Very truly yours, DEPARTMENT Of COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By James D. Hewicker, Assistant Director - Planning JDH/sh CITY OF NEWPORT BEACH 640-2211 September 8, 1977 TO: INTERESTED PARTIES -THE BLUFFS GROUND WATER PROBLEMS SUBJECT: STAFF EVALUATION OF STUDY PROPOSALS Proposals for two different types of studies related to ground water problems of the Bluffs development in the City of Newport Beach. The first request for proposal consisted of only a ground water study of the Bluffs area; the second consisted of a review of the ground water problem locations, combined with design of an interceptor drain system to intercept problem ground water, and dispose of it in a manner to eliminate existing problems. The two studies were to have been mutually independent so that the City could authorize one or the other studies to be conducted but not both. Summerized below is the staff's evaluation of each proposal and a recommendation for the choice of consultant for each type of study. A. Ground water study: Products to be supplied by consultant: bedrock surface contour map, ground water contour map, summary of offsite and onsite contributions of ground water. 1) LeRoy Crandall & Associates: 50 exploratory drill holes, 15 observation wells, total cost $53,000 to $63,000. The proposal includes a very complete analysis of the problem and,a very thorough exploration program. Relies extensively on drilling to determine bedrock surface and ground water flow. 2) John Mann: No observation wells or exploratory drill holes, $4,000. It is staff's opinion that this estimate cannot provide the required exploration and evaluation needed to prepare the specified maps. 3) James M. Montgomery, Consulting Engineers, Inc.: 10 exploratoryy drill holes converted to observation wells, at least one pumping test, $24,000. The mix of field mapping and drill holes to supplement this information appears to be adequate to define the properties of the ground water flow. The price is reasonable and con- sistent with good engineering practices. Recommendation: James M. Montgomery City Hall * 3300 Newport Boulevard, Newport Beach, California 92663 ,$ 0 Memo Staff evaluation of study proposals. Page 2 Design of system to intercept and divert ground water from problem areas: Products to be supplied by consultant: (a) evaluation of the entire Bluffs development for locations of ground water problems, (b) sufficient subsurface information for general depths of drain installation, (c) proposed outlet points for diversion of subsurface water, and (d) criteria for design of system. 1) LeRoy Crandall & Associates Divided into three phases, a) problem assessment, b) exploration including 50 drill holes, and c) detailed design of drain system and installation of monitoring. Cost: $58,000 to $63,000. The proposal, as was the geohyrologic study, is well thought out and very thorough and includes all necessary elements to satisfactorily complete the work. 2) Geotechnical Consultants: No specified number of drill holes but detailed methods outlined for progress and completion of work. Cost: $38,000 to WOOD. This proposal contains a sufficiently detailed methodology to allow our approval of the character of the work to be performed. Our opinion is that the requirements of the R.F.P. can be met with the proposed methods and cost. 3) Leighton & Associates: Combination mapping with 20-25 drill holes combined with geophysical exploration. Cost: $21,500. The methods outlined, and the number of drill holes used can provide the required information. 4) James M. Montgomery: No drilling. Cost $11,000 It is our opinion that satisfactory design cannot be performed for this cost. 5) W.A. Wahler: Use of geophysical exploration and drilling. Extensive Phase I work (problem assessment). Cost: $37,600 to $41,941. The proposal is complete and the method proposed can accomplish the required work. Recommendation: Although the Leighton proposal appears to be slightly low, the work could be accomplished with the method proposed. Cost is very reasonable. ADDITIONAL DISCUSSION Although the Montgomery proposal appears to be low for the Interceptor Design proposal, the combined cost of this design and the geohydrologic work would be competative with most of the other estimates for one or the other packages. Consideration should be given to this type of combination. • • �e Department of Community Development �+uFoa'r DATE: September 27, 1977 TO: Beverly Wood FROM., James Evans SUBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. REFERENCE: Tract #8681 & 8682 proposals to develop. Four options for study of groundwater conditions in the Bluffs development can be considered. These options involve: 1. A cursory study which is limited only to the material required to provide information for the affect on groundwater by these two proposed developments. Some necessary background information and a requirement for mitigation measures has been provided by the report authored by Evans, Goffman & McCormick. The sole identifiable beneficiary of this type of study would be the future owners of dwellings in the proposed developments. The proposed drain improvements would not apparently solve any problems which currently exist in the remainder of the Bluffs development except in a localized area adjacent which may share a common source of nuisance groundwater with the proposed development. 2. A complete study of groundwater conditions in the Bluffs area. This study would provide background material which would be necessary for evaluating the existing problems, and a basis for monitoring possible future changes in the volume and direction of flow of groundwater in the entire Bluffs development. It would not provide a drainage system design or would it provide adequate criteria for design of such a system. The beneficiary of this type of study would logically be the entire Bluffs community and, to some extent, the city since the background information would allow an evaluation of potential situations similar to those which occured in the north Bluffs area. The developer would benefit only as an owner of a parcel of land within the development. 3. A subdrain system design study to remedy known problems from nuisance groundwater. This type of study would be limited to evaluation of known problems in dwellings in the Bluffs development and the necessary field and office analysis to develop a drain to intercept and divert groundwater which is now resulting in the problems. This study would provide only the preliminary design of the system and Would not put any hardware into the ground. It would not provide information or capability for evaluating or monitoring future groundwater conditions. A41 Paqe 2 September 27, 1977 SUBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. dw The beneficiaries of this study would appear to be only those homeowners currently experiencing problems from groundwater flow. The proposed development will probably have to install at least part of the drain system which their consultant has recommended, and therefore should not be considered the prime beneficiary of the system. If subsurface flow were to increase in the future, the system may not intercept all of the potentially damaging water. 4. The fourth option is a combination of options 2 & 3, where both studies are conducted and the system designed based on this information. This option would not provide the necessary constructed facilities but would provide the necessary monitoring system to evaluate future changes in groundwater flow, and sufficient preliminary criteria to add to a system if it were to become necessary. The beneficiaries of such a combination would include the entire Bluffs community, the future occupants of the proposed development, and to some extent, the city, since the groundwater effects on existing and/or proposed public improvement could be evaluated. October 25, 1977 Mr. Milan Dostal, Mayor City of Newp6rt Beach City hall 3300 Newport Boulevard Newport Beach, California 92660 Re: City Council Action on December 13, 1976 on Tract 8681 and Tract 8682; Use Permits #1730 and #1731 Dear Mr. Mayor: Ile have been asked by the City•staff of the Community Development Department, Newport Beach Planning Commission, in collaboration with the Bluff Homeowners Association on our willingness to share in the expense of the completion of a ground water report in the Bluffs development area of Eastbluff. I would like to briefly review the history of the Holstein Company's. development in the Bluffs and specifically, the three "high rise" sites designated as Tracts 8680, 8681 and 8682. In my review of the background of these particular sites, I will briefly comment and make emphasis on the so called "ground water complaints". The purpose of this background information is to refresh the memory of each Council member with the information and history of the three (3) projects and to point out that the latest so called "ground water problem" is a further attempt- by the handful of homeowners who are seeking to discourage any further develop- ment whatsoever and that there really is not a potential "ground water problem". 1966—Tracts 8680, 8681 and 8682 These specific tentative tracts were at the time one lot in each of Tracts 5435, 5878 and 6230. Each was designated as a 60 unit high rise locat.ion . totalling, 180 units. These were approved by the City Council subject to certain conditions. September, 1971 Agreement reached between The Irvine Company, the Iolstein Company and the Bluff. homeowners Association as to the development of the sites into high rise units. 170 FAST SEVENTEENTH STREET, COSTA MESA, CALIFORNIA 92627 (AREA 714) 642-9660 OR 548.5549 . , ,nr•, a ,•.. •<,, :.••,,. T . T 1� Mr. Milan Dostal October. 25, 1977 Page Two 3.972 The City of Newport Beach inneted a height limit, Ordinance 41,154 restrict— ing the sites to lover density. May 11, 1973 Three sites are filed with tentative tract mans containing 40 units, then removed from the agenda for revision. June 12, 1974 Three sites are filed with tentative tract maps containing 40 units, then removed from the agenda for final EIP. December 6, 1974 Three sites are refiled with tentative tract maps with 24 units and supporting EIR. January 21, 3975 EIR accepted by the City Staff of. Newport Beach on the three sites. Nay 1, 1975 Planning Commission first public hearing all on three subject sites. May 27, 1975 The third site (trade remnant) removed. (Removed from application so that only Tracts 8681 and 8682 are submitted with 17 units to the City Council). An extensive public hearing was held; Holstein Company accepts proposed map which calls for different floor plans and arrangements totalling 14 units, or 7 units on each site. Council asks homeowners if they approve it and they said that they did, subject to Coastal Commission approval. PLEASE, NOTE THAT 014 ALL Or THE ABOVE 11LARINGS, NO WATER PROBLEM• V'AS PRESENTED 1411ATSOEVER. THE ENTIRE DISCUSSION WAS ON DESIGN AND DENSITY AND BASICALLY PICHTINC TO KEEP ANYTHING PROP; BEING DEVELOPED. September, 1975 Application to Coastal Commission filed. December, ].975 After extensive henrinu with the Coastal Commission, water now is the only factor Inasmuch as homeowners hnd'accepted deusity and layout, and were instructed by the Coastal Commission that they needed a substantial reason in order to prevent building. This is when the first water situation occurred. 11olaLcin Company then countered thin and asked if they could have specific list of compinLnts to investigate. Coastal Commission said this is the only way to do it and posLponed the meeting. Homeowners were asked to get 147. Milan DOS till. October. 25, 1977 Page Three to the Holstein Comnany any specific'complaints. Homeowners stalled and refused to do so, and the Coastal Commission furnished the holstein Company with 20 letters that they had received of which 16 referred to general problems in the area and only 4 with specific water damage problems. The Holstein Company investigated each case end interviewed each homeowner to, find out that basically the problems are all local drainage in nature. A copy of all of the letters and results of the investigation are attached. March, 1976 Coastal Commission advises the holstein Company that they need to do more study of water and drainage situation. April, 1976 Attorneys for Holstein Company hire an independent soils geologist and an independent consulting civil engineer who have never worked for the Holstein Company and have no relationship with the holstein Company. They prepared extensive soil and water analyses which the Holstein Company paid for, copies of which are attached. The soil and water reports outline in detail that there is no basic problem. Homeowners object to the water and soils reports and then contend that this was unduly biased because Holstein Company paid for the reports. October, 1976 Coastal Commission by state law excludes these two particular sites. December 13, 1976 City denies extension of tract maps contending that there is a severe water problem that should be investigated. December, 1976 The City of Newport Beach has prepared various specifications for future drainage studies that encompass all of the Bluff area of. several hundred acres and proposals result in an expenditure of between $20,000 to $50,000 and obviously will produce little or no more additional information than the previous reports that.were prepared by the City and by the engineers that were hired by the Holstein Company. Since December, the Holstein Company has asked specifically of. the City where and what are the problems existing at the Bluffs; if there is an individual home that has drainage problems; if there is an area, we would like to have these specifically identified to us. This we have not received and we have requested it of the homeowners and this we have not received. There is obviously a great deal of concern and buildup of something that really does not exist. Mr. Milan Dostal OeLober 25, 1971 Page lour Is this new study, that is being; requested, to stall or stop the development. of these particular sites or is it to solve a problem of the existing residents? Or, is it to encourage the building of these two particular sites? However, we believe that it is to stall or stop development of these sites. If you ask payment from the homeowners for any portion of this study, I doubt very much if you will get $1 because no one who lives in these particular tracts is concerned with the water damage. I.et me give you an example. I personally live at 2143 Vista Yntrada which is directly across the street from Tract 8682 and there is no residence any closer to these two sites than my own. Mine is a two story home that drops down the bluff. I an in the process of remodeling that home and have exposed the soil in many spots. There is no water, and there is no drainage problem. I have checked with my neighbors, and everyone up and down the block, and there is no specific problem in this area. If this study is for existing homes, then the responsibility for paying it should be the homeowners themselves. Ve would be glad to pay our proportionate share for our area if it would result in the approval of these two particular tracts. I doubt very much if 14 additional homes, 7 in two locations, could affect any overall drainage problem. Before we, the City, or the homeowners pay anything, let's try to identify if and where the specific problems exist. Let's determine if it is the local drainage problem caused by overgrowth, weeds, grass, or tree roots. Leta determine if the cracking and water problems are merely the age of, the buildings. Let's not burden ourselves with additional money that is not going, to prove anything. Let's have the City send out a questionnaire if the homeowners won't, to the homeowners in the particular area of question, asking what the problems are. And then, let's have one representative of the City, one of the Holstein Company and one of The Irvine Company and one of the homeowners go and look at that problem, and determine if it is serious enough to continue this so called "sham on water problems". These people at the homeowners association, particularly I or 2, have done an admirable job in stalling and stopping this area from development, but these two sites that the Holstein Company has invested over $150,000 of it's own money deserves attention. The Irvine Company owns the land and it is designated and designed for development and we should not allow I or 2 people to continue to make a mockery -of our system because they spend more time at it. Please, let's study the problem and see if we can't bring this matter to a conclusion. I would suggest thnt the Holstein Company, at their expense, prepare a questionnaire to be sent out• to each of the homeowners in the area, that the Bluffs homeowners Association provide uv with the name and addresses of: the people involved. Then, if the-si• questionnaires are directed r r Mr. M•i Lan DostnI Oetober 25, 1977 Page Five to a specific person at the City of Newport Beach, and that we request cooperation from the Bluffs homeowners in that they don't pet a committee of people knocking, on doors trying to fabricate phoney drainage problems in order to continue the stalling, your consideration will be greatly appreciated in bringing the matter to a conclusion. very much. truly yours, Holstein, III V enclosures November 8, 1977 TO: FROM: SUBJECT: INITIATED BY: City Council Meeting November 14, 1977 Agenda Item No. G-1A CITY OF NEWPORT BEACH City Council Department of Community Development Request to authorize a study of the groundwater conditions in the Bluffs in connection with the preparation of an updated Environmental Impact Report, and approval of the cost allocation. The City of Newport Beach, Holstein Industries, and the Bluffs Homeowners Association Suggested Action If desired, authorize a study of the groundwater conditions in the Bluffs area to be performed by James M. Montgomery, Consulting Engineers, Inc., per their Proposal #1, dated August 5, 1977; and specifically allocate the cost of the study; OR Authorize the study of groundwater conditions related only to Tracts 8681 and 8682, to be performed by John Mann as part of the update of the Environmental Impact Report on the subject project. Background Plans for the development of Tracts No. 8681 and 8682 (see location map attached) were initially submitted to the City in May 1973, and subsequently approved by the City Council along with the certifica- tion of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Planning Commission levels. On December 13, 1976, the Council denied a request to extend Use Permits No. 1730, 1731 and the Tentative Tract Maps No. 8681 and 8682, primarily because of the concerns raised regarding the lack of information to fully analyze the groundwater conditions present in the area. At the time the request was made for the extension of the use permits and tentative maps, the applicant (IDH, a Joint Venture, Costa Mesa) and the City staff recommended the following definition of the groundwater studies to be performed in response to the concerns of the Commission and the homeowners' association. "The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, groundwater studies which will determine the major sources of subsurface waters, the general direction of groundwater movement, the probable destination of under- ground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to alleviate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to perform the tasks and determine the -appropriate share of the costs to be paid by the developer." �L 0 • TO: City Council - 2. This clarification was intended to establish the City's intent in requiring the necessary studies. It is the applicant's intention at this point to prepare materials and file the necessary applications to reactivate the proposed project. In so doing, it has been determined that it is necessary to update the certified EIR and include further information regard- ing groundwater conditions. In view of the previous discussions on this subject, and given that the City must contract with the consultant to prepare the necessary documentation, the staff initiated a request for proposals to per- form a variety of groundwater studies in connection with the use permit and tentative map applications. Proposals were received in August from several consultants and subsequently evaluated by the staff. Four alternatives were selected, discussed with the appli- cant, and forwarded to the Bluffs Homeowners' Association for review and comment. These included the following: 1. James M. Montgomery, Proposal N1: A complete study of the groundwater conditions over the entire Bluffs Area, Cost: Approx. ;24,000 2. James M. Montgomery, Proposal M2: An intercept design study to remedy existing problems in con- j.unction with data generated in Proposal #1. This study includes a future groundwater condition monitoring system. Cost: Approx. WOOD 3. Leighton & Associates: An intercept design study to remedy existing problems in the Bluffs Area. The monitoring capability is not included in this proposal, Cost: Approx. $21,500 4 A studlimited subject parcels, tsufficient tfor er cthe itions in e purposes of inclusion in an Environmental Impact Report and complete enough to determine environmental find- ings for the subject project. Cost: Approx. $4,000 Alternatives and Recommendations Further analysis of each of these proposals is included in the attachment to this report, as well as the staff's evaluation of the benefits of each of the studies. To date the Bluffs Homeowners Association has not officially indicated to the staff any prefer- ence for selection of the study consultant or the type of study to be performed. There also has been no indication of a willingness to share the costs, although the information derived from the studies would be of benefit to the City and the Homeowners' Association as well as satisfying the environmentalimpact analysis requirements of the subject project. The applicant has forwarded a written response, which is attached to this staff report, stating the position of Holstein Industries on this matter. It is the staff's recommendation that the City Council authorize the groundwater study to be performed by James M. Montgomery, Consulting Engineers, Inc., and that the study include Proposal #1, This pro- posal will provide a complete assessment of the groundwater conditions in the Bluffs Area, and it will fulfill the intent of the study as recommended in December 1976. The information should be sufficient to make an environmental determination on the project. Three alter- native cost allocations to accomplish the study are suggested for 3 • • T0: City Council - 3. Council consideration as follows: 1. Equal cost sharing among the City, the Homeowners' Association and Holstein Industries ($8000 each). 2. Equal share between the Homeowners' Association and Holstein Industries ($12,000 each). 3. Equal share between the City and Holstein Industries ($12,000 each). In the event that either the City or the Homeowners' Association fail to participate, then the staff recommendation would be to proceed with Study #4 to be accomplished by John Mann,under contract to the City, which would be a study of groundwater conditions limited to the subject parcels. The information would be sufficient for the groundwater section of the Environmental Impact Report update, and this study would constitute the minimum requirements for proceeding with the application for the proposed project. The cost of the study ($4000) would be paid by the applicant through the normal administrative procedures of Environmental Impact Report preparation. Respectfully submitted, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, Director By �WO Environ ental Coordinator BDW/kk Attachments for Council Only: 1 Location Map 2 Staff Report for last Council action - 12/13/76 3 Memo from Grading Engineer - 6/1/77 4 Request for Proposals - 6/9/77 5 Staff Evaluations of Study Proposals - 9/8/77, 9/27/77 6 Letter from Holstein Industries - 10/25/77 +�".- ._ « �2 p�,r''" �� - 6 1► G it. �. is • i 0F�w �3 fo 1 11 .i�:'• air. - L `-� .'' to r.��' '' - �- � 4t�,r • .� �s• ,�, � v4t.�J. a ;. - '-a�` __ ;.' r�uc a� '•mot f •I ♦ i„•♦- _ � m ;,fir'•..: - �. .a � gun,ra_ -sr L CASSiq �oy �'•'caaob � ' ' -�. i ttUaV2 0 • city of. T Newport Beach 94&gg&►rt rlJ.wli/wf 0IVISIOM f0•10•W tM � SCALE JH rEET a City Council Meeting December 13, 1976 Agenda Item No. G-4 CITY OF NEWPORT BEACH December 8, 1976 TO: City Council FROM: Department of Community Development SUBJECT: Use Permit No 1730 (Extension) Request to permit the construction of seven attached single-family dwellings with related parking and landscape areas. AND Tentative Map Tract No 8682 (Extension) Request to subdivide 1.65 acres into seven numbered lots for attached single-family residential develop- ment and one numbered lot to be developed as a land- scape area, private driveways and guest parking spaces. LOCATION: Lot 89, Tract 5878, located at 2122 Vista Entrada, westerly of Vista del Oro and easterly of Vista Entrada in "The Bluffs." ZONE: R-4-B-2 PRO APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: Valley Consultants, Inc., Huntington Beach SUBJECT: Use Permit No. 1731 (Extension) Request to permit the construction of seven attached related parking and single-family dwellings with landscape areas. AND Tentative Map Tract No 8681 (Extension) Request to subdivide 1.75 acres into seven numbered residential develop- lots for attached single-family ment and one numbered lot to be developed as a land- scape area, private driveways and guest parking spaces. LOCATION: Lot 125, Tract 5435, located at 1976 Vista Caudal, del Oro and northeasterly southwesterly of Vista of Vista Caudal in "The Bluffs." ZONE: R-4-B-2 PRO APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: Valley Consultants, Inc., Huntington Beach Pi TO: City Council - 2. Apptie(itions This is a request to extend the approval of four applications which propose to subdivide and develop two sites in the Bluffs which were formorly planned and designdted for the construction of high-rise residential structures. The applications as approved by the Plan- ning Commission and City Council would allow the construction of a total of fourteen dwelling units at a density and of a size, height, bedroom count, and architectural design in harmony with immediately surrounding dwellings. Plans for the development of these sites were initially submitted to the City in May, 1973, and subsequently approved by the City Council along with the certification of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Couunission levels. An Approval in Concept was issued on August Z5, 1975, and a permit was subsequently requested from the Regional Coastal Commission. The Coastal Commission denied the application on January 5, 1976. A second Approval in Concept was issued by the City on June 21, 1976. However, inasmuch as the sites will no longer be within the permit boundary of the Coastal Zone after December 31st of this year, the applicant has decided not to pursue the matter further with the Coastal Commission. City approvals will expire on November 27th (i.e., eighteen months following the last City Council action) unless the applicant's request for an extension is approved. This matter was considered by the Planning Commission at their meet- ing of October 21, 1976. At that time there was considerable discus- sion as to whether this request should be considered as a discussion item or set for public hearing. The Commission subsequently deter- mined that they would start out by considering this matter as a discussion item, and the staff was directed to notify the Community Association and bring back the complete background materials on November 4, 1976. Procedures related to Planned Residential Develop- ments are set forth under Chapter 20,51 of the Municipal Code. Ap- plicable sections pertaining to tentative and final subdivision maps are located under Chapters 19.12 and 19.16. Suggested Action If desired, approve the extension of Use Permits 1730 and 1731 and the Tentative Maps of Tracts 8682 and 8681 for a period of not to exceed two years (November 27, 1978), with the findings and subject to the conditions imposed by the City Council on May 27, 1975 or if desired, deny the request. Pl nni11 Coon) on Recommendation At its meeting of November 4, 1976, the Planning Commission voted (5 Ayes, I No and 1 Absent) to recommend to the City Council that the req nd No. eTentativeMapsof uhtsTracts No. 8682ion of Use 7ando86813beadenied.1731 and the At, the time this matter was before the Commission, there was discus- sion regarding the Commission's recent recommendation and subsequent adoption by the City Council of an amendment which would prohibit the extension of use permits beyond the initial approval period. In addition, there was considerable discussion regarding new soils and geology reports which had been prepared subsequent to the approvals granted by the City in May of 1975. Specifically there was a concern that some of the conditions of approval pertaining to drainage, ground water, seepage, soil erosion, etc. were not as ey.plicit as they ion. A opy of he Planning Commissionshould a minutesfrom nd ethe dmeeting 1oftct November 4, 1976 is attached. NUCU�u TO: City Council - 3, Since the Planning Commission meeting of November 4, 1976, the staff has met with the applicant and developed language, in response to the concerns of the Commission and the homeowners' association, which could be incorporated into the minutes of the City Council's consideration of this matter and would establish the City's intent in requiring the necessary studies without modifying any of the existing conditions of approval. The sug- gested language is as follows: "The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, ground water studies which will determine the major sources of subsurface waters, the general direction of ground water movement, the probable destination of underground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to allevi- ate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to perform the tasks and determine the appropriate share of the costs to be paid by the developer." If the City Council concurs with this suggestion, it would be the intent of the Department of Community Development to retain the services of Dr. John Mann to perform the necessary studies. Dr. Mann has already submitted a proposal to the City with an estimated cost of $4900.00. If the City Council grants the extensions as requested by the applicant, it would be the intent of the Department to require the applicant to share in the cost of the studies. Respectfully submitted, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, Director By A ES D. HEW KER Ass stant Director - Planning ` JDH/kk Attachments for Council Only: 1) Vicinity Maps 2) Excerpt of the minutes from the Planning Commission meeting of November 4, 1976 3) Planning Commission staff report dated October 29, 1976, with attachments. r 0 � r�,wruRr Department of Community Development VAT( : June 1, 1977 TO. Director FROM: Grading Engineer Sl18JECT: Ground water studies required for Tract 8681-8682, Holstein Industries The ground water problems in the Bluffs development resolve themselves into two separate elements. The first and apparently most sensitive is that of ground water seepage into garage and home areas. The second and of greater concern to Public Works as well as to individuals living along the perimeter of the Bluffs Is that of long term stability of the escarpment, The first problem is dealt with in the Evans, Goffman Report. This problem is and should be one considered as part of construction development. The recommendations dealing with this aspect are standard solutions generally provided by the soil engineering profession. One improvement on these standard recommendations is possible and I think, should be required in construction of the proposed buildings. The subdrains around the perimeter of the building should be constructed with designed filters for the soil. This process is not generally used due to the expense, but is a far more permanent solution than the general practice. Filter fabric could be used instead of a graded soil filter material. This extra design should only be required on those lots where the bedrock -terrace contact is exposed or is near ground surface. Drainage behind retaining walls should be required as a minimum for all units. The second problem is a larger scale problem dealing with the source(s), and movement of ground water in the Eastbluff area. The source(s) of ground water in the North Bluff area was only partially dealt with in the John Mann Study since the approach was to determine how much water was being placed on the ground in the common areas exceeding the plant requirements. Contributions from outside the North Bluff areas were not considered as part of the study nor were alterna- tive directions of flow other than the known problem area along the bluff edge considered. These factors should be considered as part of any new study on Eastbluff. These considerations require that the following scope of work be used: PHASE I 1). Review all pertinent soil and geologic data in the City's files. 2). Evaluate these data for pertinence to the proposed project. 3). Provide recommendations to the City if additional data are required which are not included in the City's files. a Memo: To: Director re: Ground water studies for Tract 8681-8682 June 1, 1977 Page 2 PHASE II 4). Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5). Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6). Determine whether areas outside the Eastbluffs development contribute ground water to the area. 7). Determine existing flow direction(s) of subsurface waters. 8). Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9). Provide recommendations for location and installation of permanent monitoring devices. 10). Summarize limitations of the study. 11). Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. It would seem prudent to request proposals from other well qualified firms. These include: Glen Brown of LeRoy Crandall & Associates, and James Montgomery & Associates. This procedure may lead to a better proposal since several pro- posals could be compared on their merits. A study similar to the earlier John Mann investigation is not recommended at this time. The basis for this is that the earlier study had limitations which may be offset by the scope of work described above, and this scope of work will include a secondary evaluation of the earlier work to apply this to a different area. JIM EVANS JE:rw CITY OF NE'W'PORT BEACH CALIFORNIA June 9, 1977 Gentlemen: City gall 3300 W. Newport Blvd. Area Code 714 673.2110 The City of Newport Beach invites your proposal for the preparation of a report on groundwater conditions in "The Bluffs." (See attached map,) This request is being solicited in response to the plans of Holstein Industries to subdivide two sites within the area for single family residential development. These sites are shown on the attached map and designated as Tracts 8681 and 8682. Use permits, tentative subdivision maps and an environmental impact report have previously been approved by the City. However, these approvals have since expired. The new proposal is identical to the previously approved request, however, in this case, the City is desirous of obtaining additional information as to the source and movement of ground water thru the sites and the surrounding area. A general scope of work to be performed is outlined below: PHASE I 1. Review all pertinent soil and geologic data in the City's files. 2. Evaluate the data in relation to the proposed project. 3. Provide recommendations to the City if additional data are required which are not included in the City's files. PHASE II 4. Determine whether flows are confined only to the bedrock -terrace interface and if not, provide Supporting information. 5. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6. Determine whether areas outside the Bluffs development contribute ground water to the area. 7. Determine existing flow direction(s) of subsurface waters. • Proposal in connection with ground water condition in "The Bluffs." Page 2. 8. Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9. ' Provide recommendations for location and installation of permanent monitoring devices. 10. Summarize limitations of the study. 11. Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. If you are interested in submitting a proposal for this project, we would appreciate hearing from you by Your proposal should list the services you will -provide. Your fees should be based on your standard hourly charges with a stipulated maximum fee. Please include in the proposal the name and qualifications of the geologist(s) who will be performing the studies. You should familiarize yourself with the types of information already available prior to submitting a proposal. Please contact Jim Evans, City Grading Engineer, or myself if you need any additional informa- tion or have any further questions. Very truly yours, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By James D. Hewicker, Assistant Director - Planning JOH/sh I 0 • A CITY OF NEWPORT BEACH .. 640-2211 September 8, 1977 TO: INTERESTED PARTIES -THE BLUFFS GROUND WATER PROBLEMS SUBJECT: STAFF EVALUATION OF STUDY PROPOSALS Proposals for two different types of studies related to ground water problems of the Bluffs development in the City of Newport Beach. The first request for proposal consisted of only a ground water study of the Bluffs area; the second consisted of a review of the ground water problem locations, combined with design of an interceptor drain system to intercept problem ground water, and dispose of it in a manner to eliminate existing problems. The two studies were to have been mutually independent so that the City could authorize one or the other studies to be conducted but not both. Suirmerized below is the staff's evaluation of each proposal and a recommendation for the choice of consultant for each type of study. A. Ground water study: Products to be supplied by consultant: bedrock surface contour map, ground water contour map, summary of offsite and onsite contributions of ground water. 1) LeRoy Crandall & Associates: 50 exploratory drill holes, 15 observation wells, total cost $53,000 to $63,000. The'proposai includes a very complete analysis of the problem and a very thorough exploration program. Relies extensively on drilling to determine bedrock surface and ground water flow. 2) John Mann: No observation wells or exploratory drill holes, $4,000, It is staff's opinion that this estimate cannot provide the required exploration and evaluation needed to prepare the specified maps. 3) James M. Montgomery, Consulting Engineers, Inc.: 10 exploratory drill holes converted to observation wells, at least one pumping test, $24,000. The mix of field mapping and drill holes to supplement this information appears to be adequate to define the properties of the ground water flow. The price is reasonable and con- sistent with good engineering practices. Recommendation: James M. Montgomery City Mall • 3300 Newport Boulevard, Newport Beach, California 92663 r Memo Staff evaluation of study proposals. Page 2 Design of system to intercept and divert ground water from problem areas: Products to be supplied by consultant: (a) evaluation of the entire Bluffs development for locations of ground water problems, (b) sufficient subsurface information for general depths of drain installation, (c) proposed outlet points for diversion of subsurface water, and (d) criteria for design of system. 1) LeRoy Crandall & Associates Divided into three phases, a) problem assessment, b) exploration including 50 drill holes, and c) detailed design of drain system and installation of monitoring. Cost: $58,000 to $63,000. The proposal, as was the geohyrologic study, is well thought out and very thorough and includes all necessary elements to satisfactorily complete the work. 2) Geotechnical Consultants: No specified number of drill holes but detailed methods outlined for progress and completion of work. Cost: $38,000 to $59,000. This proposal contains a sufficiently detailed methodology to allow our approval of the character of the work to be performed. Our opinion is that the requirements of the R.F.P. can be met with the proposed methods and cost. 3) Leighton & Associates: Combination mapping with 20-25 drill holes combined with geophysical exploration. Cost: $21,500. The methods outlined, and the number of drill holes used can provide the required information. 4) James M. Montgomery: No drilling. Cost $11,000 It is our opinion that satisfactory design cannot be performed for this cost. 5) W.A. Wahler: Use of geophysical exploration and drilling. Extensive Phase I work (problem assessment). Cost: $37,600 to $41,941. The proposal is complete and the method proposed can accomplish the required work. workmcouldtbenaccomplishedtwithetheton methodposal prop sed. Cost s to bs veryhreasonablehe ADDITIONAL DISCUSSION Although the Montgomery proposal appears to be low for the Interceptor Design proposal, the combined cost of this design and the geohydrologic work would be competative with most of the other estimates for one or the other packages. Consideration should be given to this type of combination. • 04a�W� A ��� Deportment of Community Development DATE: September 77, 1977 TO: Beverly Wood FROM. James Evans SUBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. REFERENCE: Tract N8681 b 8682 proposals to develop. Four options for study of groundwater conditions in the Bluffs development can be considered. These options involve: equired o provide 1 information ntudy for which thaffectionted only to groundwaterthe by these twoatealrprt proposed developments. Sommeaasuresehasrbeencprovidedround iby hetion reportand authoredrbyent for Evans, Goffmanien McCormick. The sole identifiable beneficiary of this type of study would be the future owners of dwellings in the proposed developments. The crdrain improvements apparently solve any exctmwich urentlyexistitheemainder of thelffsevelopmenexcept in locallaed area adjacent which may share a common source of nuisance groundwater with the proposed development. 2. A complete study of groundwater conditions in the Bluffs area. This study would provide background material which would be necessary for evaluating the existing problems, and a basis for monitoring possible future changes in the volume and direction of flow of groundwater in the entire Bluffs development. It would not provide a drainage system design or would it provide adequate criteria for design of such a system. The beneficiary of this type of study would logically be the entire Bluffs community and, to some extent, the city since the background information would aT1ow an evaluation of potential situations similar to those which occured in the north Bluffs area. The developer would benefit only as an owner of a parcel of land within the development. ce 3 groundwater. Thisdtypenoftstudy would to dbeklimited toems from evaluation ofknown problems in dwellings in the Bluffs development and the necessary field and office analysis to develop a drain to intercept and divert groundwater preliminaris ywdesigntofgin the the systemoandms. wouldhis notsputyany harld dwaredintolthehe ground. It would not provide information or capability for evaluating or monitoring future groundwater conditions. ,�1 Paqe 2 September 27, 1977 SUBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. Jw The beneficiaries of this study would appear to be only those homeowners currently experiencing problems from groundwater flow. The proposed development will probably have to install at least part of the drain system which their consultant has recommended, and therefore should not be considered the prime beneficiary of the system: If subsurface flow were to increase in the future, the system may not intercept all of the potentially damaging water. 4. The fourth option is a combination of options 2 & 3, where both studies are conducted and the system designed based on this information. This option would not provide the necessary constructed facilities but would provide the.necessary monitoring system to evaluate future changes in groundwater flow, and sufficient preliminary criteria to add to a system if it were to become necessary. The beneficiaries of such a combination would include the entire Bluffs community, the future occupants of the proposed development, and to some extent, the city, since the groundwater effects on existing and/or proposed public improvement could be evaluated. OR 0 ; A October 25, 1977 Mr. Milan Dental, Mayor City of Newport Beach City hall 3300 Newport Boulevard Newport Beach, California 92660 He; City Council Action on December 13, 1976 on Tract 8681 and Tract 8682; Use Permits #1730 and #1731 Dent Mr. Mayor. We have been asked by the City staff of the Community Development Department, Newport Bench Planning Commission, in collaboration with the Bluff Homeowners Association on our willingness to share in the expense of the completion of a ground water report in the Bluffs development area of Eastbluff. I would like to briefly review the history of the Holstein Company's development in the Bluffs and specifically, the three "high rise" sites designated as Tracts 8680, 8681 and 8682. In my review of the background of these particular sites, I will briefly coimnent and make emphasis on the so called "ground water complaints". The purpose of this background information is to refresh the memory of each Council member with the information and history of the three (3) projects and to point out that the latest so called "ground water problem" is a further attempt by the handful of homeowners who are seeking to discourage any further develop- ment whatsoever and that there really is not a potential "ground water. problem". 1966-Tracts 8680, 9681 and 8682 These spt:cific tentative tracts Were at the time one lot in each of Tracts 5435, 5878 and 6230. Each was designated as a 60 unit high rise 3ocnIIon totalling 180 units, These were approved by the City Council subject to certain conditions. September, 1971 Agreament reached between The Irvin(, Company, the Holstein Company and the Bluff Homeowners Association as to the development of the sites into high rise units. 170 FAST SEVEHTEFMTII STRFET, COSTA MESA, CALIFORMA 92627 • (AREA 714) 642.9660 Olt 548554S Mr. Milan Uostal. Oc•tobor 25, 1977 Page Two 3972 Th , City of Newport Beach inacted a height limit, Ordinance #1454 restrict- ing the sites to lower density. M 11, 1973 Three sites are filed with tentative tract mans containing 40 units, then removed from the agenda for revision. June 12, 1974 Three sites are filed with tentative tract maps containing 40 units, then removed from the agenda for final EIR. Deccmber 6, 1974 Three sites are refiled with tentative tract maps with 24 units and supporting EIR. January 21, 1.975 EII. accepted by the City Staff of. Newport Beach on the three sites. May 1, 1975 Planning Commission first public hearing all on three subject sites. May 27L. 1975 The third site (trade remnant) removed. (Removed from application so that only Tracts 8681 and 8682 are submitted with 17 units to the City Council). An extensive public hearing was held; Holstein Company accepts proposed map which calls for different floor plans and arrangements totalling 14 units, or 7 units on each site. Council asks homeowners if* they approve it and they said that they did, subject to Coastal Commission approval. PLEASE NOTE THAT ON ALh OF TPE ABOVE HEARINGS, NO WATER PROBLEM, WAS PRESENTED WATSOEVER. TIIE ENTIRE. DISCUSSIO14 WAS ON DESIGN AND DENSITY AND BASICALLY FICHTINC TO KEEP ANYTHING FROM BEING DEVELOPED. SPpteabLy_,_ 1975 Application to Coastal Commission filed. llcceirbot 1.975 After extensive hearing with the Coastal Commission, water now is the only factor Inasmuch as homeowners had accepted density and layout, and were instructed by thc• Coastal Commission that they needed a substantial. reason in ordur to prevent building,. This is when the first water situation occurred. 1101stein Company then countered this and asked if they could have specific list or. comp:l.itnts to investigate. Coastal Commission said this is the only w,ty to do i.t and postponed the meeting. Homeowners were asked to get it 0 0 ,-V III. i:Ll.11l Dusldi October 25, 1977 Page Three to the Holstein Company any specific complaints. Homeowners stalled and refused to do so, and the. Coastal Commission furnished the Holstein Company with 20 letters that they had received of which 16 referred to general problems in the Area and only 4 with specific water damage problems. The Holstein Company investigated each case Ind interviewed each homeowner to find out that basically the problems are all local drainage in nature. A copy of all of the letters and results of the investigation are attached. March. 1976 Coastal Commission advises the Holstein Company that they need to do more study of water and drainage situation, April, 1976 Attorneys for Holstein Company hire an independent soils geologist and an independent consulting civil engineer who have never worked for the Holstein Company and have no relationship with the Holstein Company. They prepared extensive soil and water analyses which the Holstein Company paid for, copies of which are attached. The soil and water reports outline in detail that there is no basic problem. Homeowners object to the water and soils reports and then contend that this was unduly biased because Holstein Company paid for the. reports. October, 1976 Coastal Commission by state law excludes these two particular sites. December 13, 1976 City denies extension of tract maps contending that there is a severe water problem that should be investigated. December, 1976 The City of Newport Beach has prepared various specifications for future drainage studies that encompass all of the Bluff area of,severnl hundred acres and proposals result in an expenditure of between $20,000 to $50,000 and obviously will produce little or no more additional information than the previous reports that .were prepared by the City and by the engineers that were hired by the Holstein Company. Since December, the Holstein Company has asked specifically of the City where and what are the problems existing at the Bluffs; if there is an individual home that has drainage problems; if there is an area, we would like to have these specifically identified to us. This we have not received and we have requested it of the homeowners And thin we have not received. Thera is obviously a great deal of concern and buildup of something that really does not exist. .- • Ptr. iitlan costal uetoher 25, .19ii Page Four Is this: new study, that is being requested, to stall or stop the development of these particular sites or is it to solve a problem of the existing rrsideuts? Or, is it to encourage the building of these two particular sites? however, we. believe that it is to stall or stop development of these sites. If you ask payment from the homeowners for any portion of this study, I doubt very much if you will get $1 because no one who lives in these particular tracts is concerned with the water damage. Let me give you an example. I personally live at 2143 Vista Entrada which is directly across the street from Tract 8682 and there is no residence any closer to these two sites than my own. Mine is a two story home that drt)ps dotnn the bluff. I am in the process of remodeling that home and have exposed the soil in many spots. There is no water, and there is no drainage problem. I have checked with my neighbors, and everyone up and down the block, and there: is no specific problem in this area. If this study is for existing homes, then the responsibility for paying it should be the homeowners themselves. 4ie would be glad to pay our proportionate share for our area if it would result in the approval of these two particular. tracts. I doubt very much If 14 additional homes, 7 in two locations, could affect any overall drainage problem. Before we, the City, or the homeowners pay anything, Let's try to identify if and where the: specific problems exist. Let's determine if it is the local drainage problem caused by overgrowth, weeds, grass, or tree roots. let's determine if, the cracking and water problems are merely the age of the buildings. Let's not burden ourselves with additional money that is not going to prove anything. Let's have the City send out a questionnaire if the homeowners won't, to the homeowners in the particular area of question, asking what the problems are. And then, let's have one representative of the City, one of the Holstein Company and one of The Irvine Company andd one of the homeowners go and look at that problem, and determine if it is serious enough to continue this so called "sham on water problems". These people at the homeowners association, particularly 1 or 2, have done an admirai)le job in stalling and stopping this: area from development, but these two sites that the Holstein Company has invested over $150,000 of it's own money deserves attention. The Irvine Company owns the .land and it is designated and designed for development and we: should not allow l or 2 people to continue to make a mockery -of our system because they spend more time at it. please, let's study the problem and see if we can't bring; this matter to a conclusion. I would suggest that the Holstein Company, at their expense, prepare a questionnaire. to be sent out to each of the homeotnners in the area; that the P,luffs Homeowners Association provide us with the name and addresses of the people involved. Then, if thew questionnaires are directed 14 Mr. tit List no-,t.II OLtUbet 25, 19// page Five to a spocific porson at the City of Newport Beach, and that we requent cooporation from the Bluffs homeowners in that they don't Bet it commitLee of peopto knocking on doors trying to fabricate Phoney drainnge problem:; in order to continue: the stalling, your consideration will be greatly appreciated in bringing the matter to a conclusion. very much. truly yours, enclosures Holstein, III • City Council Meeti0 Agenda Item No. Octob CITY OF NEWPORT BEACH October 5, 1977 TO: City Council FROM: Department of Community Development SUBJECT: Alternative Proposals for Request to authorize a study of the groundwater conditions in the Bluffs in connection with the preparation of an updated Environmental Impact Report, and approval of the cost allocation. INITIATED BY: The City of Newport Beach, Holstein Industries, and Bluffs Homeowners Association Suggested Action If desired, authorize a study of the groundwater conditions and the design of an intercept system to be performed by James M. Montgomery, Consulting Engineers, Inc., per their Proposals #1 and #2, dated August 5, 1977; and specifically allocate the cost of the study; or Choose one of the alternative studies, and specifically allocate the cost. Background Plans for the development of Tracts No. 8681 and 8682 were initially submitted to the City in May 1973, and subsequently approved by the City Council along with the certification of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Planning Commission levels. On December 13, 1976, the Council denied a request to extend Use Permits No. 1730, 1731 and the Tentative Tract Maps No. 8681 and 8682, primarily because of the concerns raised regarding the lack of information to fully analyze the groundwater conditions present in the area. At the time the request was made for the extension of the use permits and tenta- tive maps, the applicant (IDH, a Joint Venture, Costa Mesa) and the City staff recommended the following definition of the groundwater studies to be performed in response to the concerns of the Commis- sion and the homeowners' association. "The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, groundwater studies which will determine the major sources of subsurface waters, the general direction of groundwater movement, the probable destination of under- ground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to alleviate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to perform the tasks and determine the appropriate share of the costs to be paid by the developer." TO: Ci ty0ounci l - 2. 0 This clarification was intended to establish the City's intent in requiring the necessary studies. It is the applicant's intention at this point to prepare -materials and file the necessary applications to reactivate the proposed project. In so doing, it has been determined that it is necessary to update the certified EIR and include further information regard- ing groundwater conditions. In view of the previous discussions on this subject, and given that the City must contract with the consultant to prepare the necessary documentation, the staff initiated a request for proposals to per- form a variety of groundwater studies in connection with the use permit and tentative map applications. Proposals were received in August from several consultants and subsequently evaluated by the staff. Four alternatives were selected, discussed with the appli- cant,•and forwarded to the Bluffs Homeowners' Association for review and comment. These included the following: A study limited to groundwater conditions in the subject parcels, sufficient for the purposes o,f inclusion in an Environmental Impact Report and complete enough to determine environmental find- ings for the subject project. Cost Approx. $4000 James M. Montgomery, Proposal #1: A complete study of the groundwater conditions over the entire Bluffs Area. Cost: Approx. $24,000 3. James M. Montgomery, Proposal #2: An intercept design study to remedy existing problems in con- junction with data generated in Proposal #1. This study includes a future groundwater condition monitoring system. Cost: Approx. $11,000 4. Leighton & Associates: An intercept design study to remedy existing problems in the Bluffs Area. The monitoring capability is not included in this proposal. Cost: Approx. $21,500 Further analysis of each of these proposals is included in the attachment to this report as well as the staff's evaluation of the benefits of each of the studies. To date neither the applicant nor the Bluffs Homeowners' Association have officially indicated to the staff any preference for selection of the study consultant or the type of study to be performed. There also has been no indication of a willingness to share the costs, although the in- formation derived from the studies would be of benefit to the City and the Homeowners' Association as well as satisfying the environs mental impact analysis requirements of the subject project. It is the staff's recommendation that the City Council authorize the groundwater study to be performed by James M. Montgomery, Consult- ing Engineers, Inc., and that the study include Proposals #1 and #2. The combination of these proposals will provide a complete assessment of the groundwater conditions in the Bluffs Area; it will fulfill the intent of the study as recommended in December 1976;.it will provide monitoring capability of future groundwater conditions and be a source for an on -going data base for this problem; the study will result in the design of an intercept system to resolve some of the existing problems (although construction and/or emplacement, TO: City Ouncil - 3. the and cost estimate for facility are informationeforninclusionrin shownand finally, provide accurate the updated Environmental Impact Report for beesharedcbyproject. It is suggested that the cost of this study developer'and the homeowners' association as the primary bene- ficiaries of the study results. Respectfully submitted, DEPARTMENT Of COMMUNITY DEVELOPMENT R. V. HOGAN,-Director By BEVERLY D. WOOD Environmental Coordinator BDW/kk Attachments for City Council only: 1) Request for Proposals - June 9, 1977 2) Staff Evaluations of Study Proposals 3) Staff Report for last Council action - 12/13/76 CITY OF NEWPOT:T BEACH CALIFORNIA June 9, 1977 Gentlemen: City Hall 3300 W. Newport Area C6do 714 673-2110 The City of Newport Beach invites your proposal for the preparation of a report on groundwater conditions in "The Bluffs." (See attached map.) . This request is being solicited in response to the plans of Holstein Industries to subdivide two sites within the area for single family residential development. These sites are shown on the attached map and designated as Tracts 8681 and 8682. Use permits, tentative subdivision maps and an environmental impact report have previously been approved by the City. However, these approvals have since expired. The new proposal is identical to the previously approved request, however, in this case, the City is desirous of obtaining additional information as to the source and movement of ground water thru the sites and the surrounding area. A general scope of work to be performed is outlined below: PHASE I 1. Review all pertinent soil and geologic data in the City's files. 2. Evaluate the data in relation to the.proposed project. 3. Provide recommendations to the City if additional data are required which are not included in the City's files. PHASE II 4. Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6. Determine whether areas outside the Bluffs development contribute ground water to the area. 7. Determine existing flow direction(s) of subsurface waters. Proposal in connection with ground water condition in "The Bluffs." Page 2. 8. Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9. Provide recommendations for location and in of permanent monitoring devices. 10. Summarize limitations of the study. 11. Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. If you are interested in submitting a proposal for this project, we would appreciate hearing from you by Your proposal should list the services you will provide. Your fees should be based on your standard hourly charges with a stipulated maximum fee. Please include in the proposal the name and qualifications of the geologist(s) who will be performing the studies. You should familiarize yourself with the types of information already available prior to submitting a proposal. Please contact Jim Evans, City Grading Engineer, or myself if you need any additional informa- tion or have any further questions. Very truly yours, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By James D. Hewicker, Assistant Director - Planning JDH/sh ,♦ 5444 , lip' " aC p "t` aN P" _.O^ ) • ' '�`a't' - Jla x` '�� r�' `tt, ��'� .t_ _i� •LI.A r1 ,'�I' •� ��\` �G� x ; � ^,i?. Y'1\y • �t}�� �,'1�// !� '' ' � •; � , .. - .v0,wp�� :r� ;� � ��t{tr•�. Ca � � � ,BEN' A t�:?{� 3Ma '� •�' -3' 0 f ::., ., :; ., i Q7/ •V � � � � � L. NAC (p.A'Oq' ,� . __ ice, "� PL ell WA 4 n a d •� T,\ yr�i EYQ N-. L ;ne.. �-- � ul PcC" �+ �� '•.i •%� ?�i fj�A� 'fL��s: rlr` •Ti ib •: -: t.2S� , ••;'�J• !%. .. �,�� ,/•I r`IJt �'F�Gr _`, y '• � '� t' �'eee a-i;h !+ / •, "{L P> { .11-': it q� � r_� 1 O ,I•. -� tjVNYA ST i / ` v v' LACNTHOl7N 3 i ynl .� cL i.��� / �a. `�`ie.---------=�.1 •'yam " c ao �..-, `s'' � - -�., `� I .�Q) //�//�d�,�xcm' Vx s. Bum-kEY.�'- S/• `�0 ��_—• - ``3 3/; `,� `` CAlrp `�\ �Pyd �,�1��./d i\�o � �""`_ a; rA /r i, :'F•�:t- "--:�_�' •__._ e,'�„Sr �-� f ol, A �pg jam- � 'L. v{ r� �ChKD .- ■ 0 Cli OT Newport mBeach C14FAENT�' I LAHI 191;, of VISION &'10•7T p TOO �o SCALE IN FEET CITY OF NEWPORT BEACH September 8, 1977 TO: INTERESTED PARTIES -THE BLUFFS GROUND WATER PROBLEMS SUBJECT: STAFF EVALUATION OF STUDY PROPOSALS Proposals for two different types of studies related to ground water problems of the Bluffs development in the City of Newport Beach. The first request for proposal consisted of only a ground water study of the Bluffs area; the second consisted of a review of the ground water problem locations, combined with design of an interceptor drain system to intercept problem ground water, and dispose of it in a manner to eliminate existing problems. The two studies were to have been mutually independent so that the City could authorize one or the other studies to be conducted but not both. Summerized below is the staff's evaluation of each proposal and a recommendation for the choice of consultant for each type of study. A. Ground water study: Products to be supplied by consultant: bedrock surface contour map, ground water contour map, summary of offsite and onsite contributions of ground water. 1) LeRoy Crandall & Associates: 50 exploratory drill holes, 15 observation wells, total cost $53,000 to $63,000. The proposal includes a very complete analysis of the problem and a very thorough exploration program. Relies extensively ' on drilling to determine bedrock surface and ground water flow. 2) John Mann: No observation wells or exploratory drill holes, $4,000. It is staff's opinion that this estimate cannot provide the required exploration and evaluation needed to prepare the specified maps. 3) James M. Montgomery, Consulting Engineers, Inc.: 10 exploratory drill holes converted to observation wells, at least one pumping test, $24,000. The mix of field mapping and drill holes to supplement this information appears to be adequate to define the properties of the ground water flow. The price is reasonable and con- sistent with good engineering practices. Recommendation: James M. Montgomery City Hall e 3300 'Newport Boulevard, Newport Beach, California 92663 Memo Staff evaluation of study proposals. Page 2 B. Design of system to intercept and divert ground water from problem areas: Products to be supplied by consultant: (a) evaluation of the entire Bluffs development for locations of ground water problems, (b) sufficient subsurface information for general depths of drain installation, (c) proposed outlet points for diversion of subsurface water, and (d) criteria for design of system. 1) LeRoy Crandall & Associates Divided into three phases, a) problem assessment, b) exploration including 50 drill holes, and c) detailed design of drain system and installation of monitoring., Cost: $58,000 to $63,000. The proposal,. as was the geohyrologic study, is well thought out and - very thorough and includes all necessary elements to satisfactorily complete the work. 2) Geotechnical Consultants: No specified number of drill holes but'detailed methods outlined for progress and completion of work. Cost: $38,000 to $59,000. This proposal contains'a' sufficiently detailed methodology to allow . our approval of the character of the work to be performed. Our opinion is that the requirements of the R.F.P. can be•met with the proposed methods and cost. 3) Leighton & Associates: Combination mapping with 20725 drill holes combined with geophysical exploration. Cost: $21,500. The methods outlined, and the number of drill holes used can provide the required information. 4) James M. Montgomery: No drilling. Cost $11,000 It is our opinion that satisfactory design cannot be performed for this cost. 5) W.A. Wahler: Use of geophysical exploration and drilling. Extensive Phase I work (problem assessment). Cost: $37,600 to $41,941. The proposal is complete and the method proposed can accomplish the required work. Recommendation: Although the• Leighton proposal appears to be slightly low, the work could be accomplished with the method proposed. Cost is very reasonable. ADDITIONAL DISCUSSION Although the Montgomery proposal appears to be low for the Interceptor Design proposal, the combined cost of this design and the geohydrologic work would be competative with most of the other estimates for one or the other packages. Consideration should be given to this type of combination. SEW Pp�,T Department- of Community Development cgtaFoaNA DATE: September 27, 1977 TO: Beverly Wood FROM: James Evans S UBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. REFERENCE: Tract #8681 & 8682 proposals to develop. Four options for study of groundwater conditions in the Bluffs development can be considered. These options involve: A cursory study which is limited only to the material required to provide information for the affect on groundwater by these two proposed developments. Some necessary background information and a requirement for mitigation measures has been provided by the report authored by Evans, Goffman & McCormick. The sole identifiable beneficiary of this type of study would be the future owners of dwellings in the proposed developments. The proposed drain improvements would not apparently solve any problems which currently exist in the remainder of the Bluffs development except in a localized area adjacent which may share a common source of nuisance groundwater with the proposed development. 2. A complete study of groundwater conditions in the Bluffs area. This study would provide background material which would be necessary for evaluating the existing problems, and a basis for monitoring possible future changes in the volume and direction of flow of groundwater in the entire Bluffs development. It would not provide a drainage system design or would it provide adequate criteria for design of such a system. The beneficiary of this type of study would.logically be the entire Bluffs community and, -to some extent, the city since the background information would allow an evaluation of potential situations similar to those which occured in the north Bluffs area. The developer would benefit only as an owner of a parcel of land within the development. 3. A subdrain system design study to remedy known problems from nuisance groundwater. This type of study would be limited to evaluation of known problems in dwellings in the Bluffs development and the necessary field and office analysis to develop a drain to intercept and divert groundwater which is now resulting in the problems. This study would provide only the preliminary design of the system and would not put any hardware into the ground. It would not provide information or capability for evaluating or monitoring future groundwater conditions. Page 2 September 27, 1977 SUBJECT: Further evaluation of various options concerning groundwater studies in the Bluffs. The beneficiaries of this study would appear to be only those homeowners currently experiencing problems from groundwater flow. The proposed development will probably have to install at least part of the drain system which their consultant has recommended, and therefore should not be considered the prime beneficiary of the system: .If subsurface flow were to increase in the future, the system may not intercept all of the potentially damaging water. 4. The fourth option is a combination of options 2 & 3, where both studies are conducted and the system designed based on this information. This option would not provide the necessary constructed facilities but would provide the necessary monitoring system to evaluate future changes in groundwater flow, and sufficient preliminary criteria to add to a system if it were to become necessary. The beneficiaries of such a combination would include the entire Bluffs community, the future occupants of the'proposed development, and to some extent, the city, since the groundwater effects on existing and/or proposed public improvement could -be evaluated. Jw .June 8, 1977 Gentlemen: Holstein Industries proposes to subdivide 3.4 acres into 17 numbered lots for attached single family residential development, and two lots to be developed as landscape area, private driveways and guest parking spaces. Use Permits are also being processed since the proposal is for a "Planned Residential'Development." The proposal is identical to one previously considered, for which a full Environmental Impact Report.was prepared. This EIR lacked sufficient information on ground water problems in the area. In conjunction with the current planning application, the City invites you to submit a proposal for the preparation of a report on groundwater conditions at the development site and in the surrounding area (see attached map). A general scope of services is described below: PHASE I 1.) Review all pertinent soil and geologic data in the City's ffles.l 2.) Evaluate the data in relation to the proposed project. 3.) Provide recommendations to the City if additional data are required which are not included in the City's files. PHASE II 4.) Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5.) Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6.) Determine whether areas outside the Eastbluffs development contribute ground water to the area. 7.) Determine existing flow direction(s) of subsurface waters. 8.) Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9.) Provide recommendations for location and installation of* permanent monitoring devices. 10.) Summarize limitations of the study. 11.) Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. June 8, 1977 Page 2. If you are interested in submitting a proposal for this project, we would appreciate hearing from you by June 24, 1977. Your proposal should list the services you will provide. Your fees should be based on your standard hourly charges with a stipulated maximum •fee. Please include i"n the proposal the •name and qualifications of the geologist(s) who will be performing the studies. You should familiarize yourself with the types of•information already available prior to submitting a proposal. Please contact Jim Evans, City Grading Engineer, or myself if you need any additional information or have any further questions. Very truly yours, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By Robert P. Lenard Associate Planner RPL/dlt i 0 JENrV Po eoren cF Community D va[opmenr ,c,r� s' •�CI FOR'"P DATE: TO: FROM: SUBJECT: June 1, 1977 Director Grading Engineer Ground water studies required for Tract 8681-8682, Holstein Industries The ground water problems. in the Bluffs developmentresolve themselves into two separate elements. The first and apparently most sensitive is that of ground• water seepage into garage and home areas. The second and of greater concern to Public Works as well as to individuals living along the perimeter of the Bluffs is that of long term stability of the escarpment. . The first problem is dealt with in the Evans, Goffman Report. This 'problem is and should be one considered as part of construction development. The. recommendations dealing 'with this aspect are standard solutions generally provided by the soil engineering profession.. One improvement, on these standard recommendations is possible and I think, should be required in construction of the, proposed buildings. The subdrains around the.perimeter of the building should be constructed with designed filters for the soil. This process is not generally used due to the expense, but is a far more permanent solution than the general practice. filter fabric could be used instead of a graded soil filter material. This extra design should only be.required on those lots where the bedrock -terrace contact is exposed or is near ground surface. Drainage behind retaining walls should be required as a minimum for all units. The second problem is a larger scale problem dealing with the source(s), and. _•movement of ground water in the Eastbluff area.. The source(s) of ground water. in the North Bluff area was only partially dealt with in the John Mann Study. ' since the approach was to determine how much water was being placed on the ground in the common areas exceeding the plant requirements, .Contributions from outside the North Bluff areas were not considered as part of the study nor were alterna- tive directions of flow other than the known problem area along the bluff edge considered. These factors should be considered as part of any new study on Eastbluff. These considerations require that the following scope of work be used: PHASE I 1). Review all pertinent soil and geologic data in the City's files. 2). Evaluate these data for pertinence to the proposed project. 3). Provide recommendations to the City if additional data are required which are not included in the City's files- Memo: To: Director re: Ground water studies for Tract 8681-8682 June 1, 1977 Page 2 PHASE II 4). Determine whether flows are confined only to the bedrock -terrace interface and if not, provide supporting information. 5). Provide a map showing the generalized configuration of the terrace -bedrock contact surface. 6). Determine whether areas outside the Eastbluffs development contribute ground water to the area. 7). Determine existing flow direction(s) of subsurface waters. 8). Compare bedrock elevation data to ground surface elevations.to delineate potential problem areas from ground water buildup. 9). Provide recommendations for location and installation of permanent monitoring devices. 10). Summarize limitations of the study.• 11). Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. It would seem prudent to request proposals from other well qualified firms. These include: Glen Brown of LeRoy Crandall & Associates, and James Montgomery & Associates. This procedure may lead to a better proposal since several pro- posals could be compared on their merits. A study similar to the earlier John Mann investigation is not recommended at this time. The basis for this is that the earlier study had limitations which may be offset by the scope of work described above, and this scope of work will include a secondary evaluation of the earlier work to apply this to a different area. JIM EVANS JE:rw • City CQuncil,tjaeting December 13, 1976 Agenda Item No. G-4 CITY OF NEWPORT BEACH December 8, 1976 TO: City Council FROM: Department of Community Development SUBJECT: Use Permit No 1730 (Extension) Request to permit the construction of seven attached related parking and single-family dwellings with landscape areas. AND Tentative Map Tract No 8682 ('Extension)* Request to subdivide 1.65 acres into seven numbered single-family residential develop- lots for attached ment and one numbered lot to be developed as a land- scape area, private driveways and.guest parking spaces. LOCATION: Lot 89, Tract 5878, located at 2122 Vista Entrada, del Oro and easterly of Vista westerly of Vista Entrada in "The Bluffs." ZONE: R-4-B-2 PRO APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: Valley Consultants, Inc., Huntington Beach SUBJECT: Use Permit No 1731 (Extension) Request to permit the construction of seven attached single-family dwellings with related parking and landscape areas. AND Tentative Map Tract No 8681 (Extension) Request to subdivide 1.75 acres into seven numbered . lots for attached single-family residential develop ment and one numbered lot to be developed as a land- scape area, private driveways and guest parking spaces. LOCATION: Lot 125, Tract 5435, located at 1976 Vista Caudal, southwesterly of Vista del Oro and northeasterly of Vista Caudal in "The Bluffs." ZONE: R-4-B-2 PRO APPLICANT: IDH, a Joint Venture, Costa Mesa OWNER: The Irvine Company, Newport Beach ENGINEER: Valley Consultants, Inc., Huntington Beach .TO: City Wnc•il , 2. • Applications This is a request to extend the approval of four applications which propose to subdivide and develop two sites in the Bluffs which were formerly planned and designated for the construction of high-rise residential structures. The applications as approved by the Plan- ning Commission and City Council would allow the construction of a total of fourteen dwelling units at a density and of a size, height, bedroom count, and architectural design in harmony with immediately surrounding dwellings. Plans for the development of these sites were initially submitted to the City in May, 1973, and subsequently approved by the City Council along with the certification of the Environmental Impact Report on May 27, 1975, following numerous hearings at both the Council and Commission levels. An Approval in Concept was issued on August 25, 1975, and a permit was subsequently requested from the Regional . Coastal Commission. -The Coastal Commission denied the application on January 5, 1976. A second Approval in Concept was issued by the City on June 21, 1976. However, inasmuch as the sites will no longer be within the permit boundary of the Coastal Zone after December 31st.of this year, the applicant has decided not to pursue the matter further with the Coastal Commission. City approvals will expire on November 27th (i.e., eighteen months following the last City Council action) unless the applicant's request for an extension is approved. This matter was considered by the Planning Commission at their meet- ing of October 21, 1976. At that time there wag considerable discus- sion as to whether this request should be considered as a discussion item or set for public hearing. The Commission subsequently deter- mined.that they would start out by considering this'ma•tter as a discussion item, and the staff was directed to notify the Community Association and bring back the complete background materials on November 4, 1976. Procedures related to Planned Residential Develop- ments are set forth under Chapter 20.51 of the Municipal Code. Ap- plicable sections pertaining to tentative and final subdivision maps are located under Chapters 19.12 and 19.16. Suggested Action If desired, approve the extension of Use Permits 1730 and 1731 and the Tentative Maps of Tracts 8682 and 8681 for a period of not to exceed two years (November 27, 1978), with the findings and subject to the conditions imposed by the City Council on May 27, 1975 or if desired, deny the request. Planning Commission Recommendation At its meeting of November 4, 1976, the Planning Commission voted (5 Ayes, 1 No and 1 Absent) to recommend to the City Council that the request for the extension of Use Permit No. 1730 and No. 1731 and the Tentative Maps of Tracts No. 8682 and 8681 be denied. At the time this matter was before the Commission, there was discus- sion regarding the Commission's recent recommendation and subsequent adoption by the City Council of an amendment which would prohibit the extension of use permits beyond the initial approval period. In addition, there was considerable discussion regarding new soils and geology reports which had been prepared subsequent to the approvals granted by the City in May of 1975. Specifically there was a concern that some of the conditions of approval pertaining to drainage, ground water, seepage, soil erosion, etc. were not as explicit as they should be and needed clarification. A copy of the Planning Commission minutes from the meeting of November 4, 1976 is attached. ' TO: CitSouncil - 3, Since the Planning Commission meeting of November 4, 1976, the staff has met with the applicant and developed language, i.n response to the concerns of the Commission and the homeowners' association, which could be incorporated into the minutes of the City Council's consideration of this matter and would establish the City's intent in requiring the necessary studies without •modifying any of the existing conditions of approval. The sug- gested language is as follows: "The City shall require, prior to the issuance of any building or grading permits and prior to the approval of landscaping plans and landscaping watering systems, ground water studies which will determine the major sources of subsurface waters, the general direction of ground water movement, the probable destination of underground waters and estimate the quantity, quality and velocity of underground water movement. The harmful effects of such water movement shall be analyzed and recommendations shall be made to allevi- ate problems which are now in existence and which could be caused by the proposed development. The City shall engage the consultants necessary to 'perform the tasks and determine the appropriate share of the costs to be paid by the developer." If the City Council concurs with this suggestion, it would be the intent of, the Department of Community Development to retain the services of Dr. John Mann to perform the necessary studies. Dr. Mann has already submitted -a proposal to the City with an estimated cost of $4900.00., If the City Council grants the extensions as requested by -the applicant, it would be the intent of the Department to require the applicant to share in the cost of the studies. Respectfully submitted, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, Director 51 Assistant Director - Planning ` JDH/kk Attachments for Council Only: 1) Vicinity Maps 2) Excerpt of the minutes •From the Planning Commission meeting of November 4, 1976 3) Planning Commission staff report dated October 28, 1976, with attachments. '' �`���U2,�L`17,Di. DAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714/ (714) 979.8733 August 5, 1977 Department of Community Development City of Newport Beach City Hall - 3300 Newport Boulevard Newport Beach, California 92663 Attention: Mr. R. V. Hogan, Director Gentlemen: r j/ RECEIVED Commumt bevetopn,ent Dept. AUG 5 1977', CITY Dr NEWPO; EEFCHi CALM WATER RESOURCES DIVISION RARL II. WIEDE FRED R. DUREN, 1% PAUL F.MEYERHOFER RONALDL.DARTO In response to your recent request for proposals dated July 11, 1977, James M. Montgomery, Consulting Engineers, Inc., is pleased to submit proposals for both "The Bluffs Geohydrologic Study" and "The Bluffs Ground Water Interception Design Study". It is our understanding that separate presentations should be made for the two studies. 'As you know, our firm has recently completed a detailed hydrogeologic analysis of ground water flow regimen in the terrace deposits and fractured siltstone beds which surround the City's Big Canyon Reservoir. That study included exploratory drilling, permeability testing, ground water sampling, observation piezometer construction, recharge/percolation studies and dewatering considerations. In the past, our staff has also analyzed the City's ground water supply situation and performed analyses of the supply wells. The staff of James M. Montgomery has, for the past 15 years, undertaken detailed hydrogeologic studies for The Irvine Company, Irvine Ranch Water District, Costa Mesa County Water District, Orange County Water District, and the Cities of Santa Ana, Fountain Valley and Huntington Beach. These investigations have included subsurface mapping, water well location, design, construction, supervision and aquifer testing; exploratory drilling with selective aquifer testing and trace mineral analyses; salinity barrier studies including monitoring well and piezometer design and construction; and, desalting studies. The nature of Montgomery's experience in ground water studies is more fully described in our attached Water Resources Brochure. The technical staff of geologists and hydrologists who would perform the studies described in Proposal's No. 1 and No. 2, include Ralph Phraner and Karl Wiebe, hydrogeologists, and Fred Duren, engineering hydrologist. The background and qualifications of these individuals are shown on the attached bio-sketches. .LIMES M. ENGINEERS, INC. 17802 Sky Park Circle, Suite 201. Irvina, California 927147(714) 979.8733 City of Newport Beach - 2 - . August 5, 1977 The description of our services which are detailed in the two scopes of work also includes the services of our State licensed Water Quality Laboratory in Pasadena. Estimates of fees which should be budgeted for each study are presented at the end of both proposals. These fees are based upon the estimated time required and the hourly rates of the individuals above. A schedule of average rates for technical personnel classifications is attached. We look forward to discussing these proposals with your staff in more detail. If we can provide any additional information, please let us know. Very truly yours, Karl H. Wiebe Chief Hydrogeologist Epp Attachments PROPOSAL NO. 1 THE BLUFFS GEOHYDROLOGIC STUDY The purpose of this study is to investigate the source, occurrei movement of ground water in and through the study area, as defined in the= City of Newport Beach's request for proposal, dated July 11, 1977. The scope of studies may be defined as follows: PHASE I 1. Review all pertinent soils and geologic data and reports available within the City's files, and evaluate that data in relation to the proposed project. 2. Provide recommendations for additional data collection required, to include: a. Collection, review and evaluation of data, maps and reports from The Irvine Company, the University of California, the California Department of Water Resources and the Orange County Environmental Management Agency. b. Detailed recommendations for exploratory drilling, piezometer construction and field mapping program to provide required additional surface and subsurface information. PHASE II 1. Drill and construct approximately 10 exploratory drill holes and piezometers, and conduct short-term pumping or "slug" - tests to determine hydraulic properties of the aquifers. 2. Define and map the terrace/bedrock contact, insofar as possible, along the Bluffs and at the sites of the exploratory borings. 3. Excavate and map backhoe trenches in seepage areas at base of the Bluffs along Backbay Drive and conduct limited -scale evapo -transpiration studies. 4. Conduct a detailed program of ground water sampling and mineral analyses, using advanced in-house constituent analytical techniques. 5. From the available data, construct interpretive maps depicting ground water elevation contours, bedrock eleva- tions and thickness contours of the terrace materials. 6. When the above tasks are completed, the #ollowing items of work would be undertaken: a. Determine the character of the underlying aquifers. b. Determine whether flows are confined to the bedrock - terrace interface and provide supporting information. c. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. d. Determine whether areas outside the Bluffs contribute ground water to the study area. e. Determine existing flow direction(s) of subsurface waters. f. Compare bedrock elevation data to ground surface elevations to delineate areas which may experience potential problems from the buildup of ground water. g. Estimate the quantity of subsurface inflow and outflow in the study area. 7. Provide recommendations for location and installation of permanent observation and monitoring facilities. S. Summarize limitations of study. 9. Prepare a final report describing the ground water regimen and provide conclusions regarding the source, movement and ultimate destination of ground waters in the area. 10. Provide detailed recommendations for remedial measures, including modification of patterns and application rates of irrigation waters and the design of potential dewatering facilities. Based upon our understanding of the level of effort required to complete tasks included in Phase I and II, and in consideration of the hourly rate schedule presented in Appendix A, we recommend that $24, 000 be budgeted for the completion of the work in Proposal No. 1. - 2 - O� SEW Pp� u _ , CITY OF NEWPORT BEACH cgLIFoit July 25, 1977 Gentlemen: It has come to our attention that some confusion exists concerning the requests for proposals on The Bluffs ground- water problem. The intent of this letter is to clarify the purpose of the requests, the designation to be used in identifying your responses, and our interpretation of the requirements for consideration of a proposal. Two separate requests were sent out on the same day pertaining to the ground water problems in the Bluffs area. One concerned a study of ground water sources, directions of movement, and ultimate designation. This study, should be referred to as "The Bluffs- Geohydrologic Study." The other request involved a more limited ground water study with the ultimate result of a designed system for interception and control of ground water flow to existing �roblem areas. This study should be referred to as "The Bluffs round Water Interceptor Design Study." It is the intent of the City to compare the costs of the two types of studies and to implement one of the two types, but not both. Therefore, if you have received both requests and responded to only one of them, you will not be considered should the City elect to contract for the other type of study. We trust that this will clarify questions concerning these aspects of the proposals. Very truly yours, DEPARTMENT OF COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By 6WA J mes D. Hewicker As istant Director -Planning JDH City Hall • 3300 Newport Boulevard, Newport Beach, California 92663 List for Mailing Proposals Ground Water Glenn Brown Study - Le Roy Crandell & Associates 711 N. Alvarado Street Los Angeles, CA 90026 Phase I & Phase II Letter James Montgomery, Consulting Engineer 17802 Sky Park Circle Suite 201 Irvine, Calif. 92714 John F. Mann, Jr. 945 Reposado Drive La Habra, Calif. 90631 Study for Mail to all parties listed above. Interceptor Design - Phase I Letter Geotechnical Consultants 2001 E. 4th Street Suite 102 Santa Ana, Calif. 92.705 Woodward - Clyde Consultants 4000 W. Chapman Avenue Orange, Calif. 92668 Attn: George Brogon Leighton & Associates 17975 Sky Park Circle .Irvine, Calif. 92714 W. A. Wahler & Associates 2007 Quail Street Newport Beach, CA 92660 Attn: Joseph Kullkowski Pacific Soils Engineering, Inc. 17921 Sky Park Circle Irvine, Calif. 92714 Attn: Rex Ketter ," w a June 9, 1977 Gentlemen: The City of of a report map.) CITY OF NEWPORT BEACH CALIFORNIA City Hall 3300 W. Newport Blvd. Area Code 714 673-2110 Newport Beach invites your proposal for the preparation on groundwater conditions in "The Bluffs." (See attached This request is being solicited in response to the plans of Holstein Industries to subdivide two sites within the area for single family residential development. These sites are shown on the attached map and designated as Tracts 8681 and 8682. Use permits, tentative subdivision maps and an 'environmental impact report have previously been approved by the City. However, these approvals have since expired. The new proposal is identical to the previously approved request, however, in this case, the City is desirous of obtaining additional information as to the source and movement of ground water thru the sites and the surrounding area. A general scope of work to be performed is outlined below: 2. 3. 4. 5, 6. 7. PHASE I Review all pertinent soil and geologic data in the City's files. Evaluate the data in relation to the -proposed project. Provide recommendations to the City if additional data are required which are not included in the City's files. PHASE II Determine whether flows are confined only to the bedrock -terrace• interface and if not, provide supporting information. Provide a map showing the generalized configuration of the terrace -bedrock contact surface. Determine whether areas outside the Bluffs development contribute ground water to the area. - Determine existing flow direction(s) of subsurface waters. Proposal in connection with ground water condition in "The Bluffs." Page 2. 8. Compare bedrock elevation data to ground surface elevations to delineate potential problem areas from ground water buildup. 9. Provide recommendations for location and installation of permanent monitoring devices. 10. Summarize limitations of the study. 11. Provide conclusions regarding the source, movement, and ultimate destination of ground water in the area. If you are interested in submitting a proposal for this project, we would appreciate hearing from you by Your proposal should list the services you will provide. Your fees should be based on your standard hourly charges with a stipulated maximum fee. Please include in the proposal the name and qualifications of the geologist(s) who will be performing the studies. You should familiarize yourself with the types of information already available prior to submitting a proposal. Please contact Jim Evans, City Grading Engineer, or myself if you need any additional informa- tion or have any further questions. Very truly yours, DEPARTMENT Of COMMUNITY DEVELOPMENT R. V. HOGAN, DIRECTOR By James D. Hewicker, Assistant Director - Planning JDH/sh Q y O J •il ' A pL Z%/-1 '� � Y i4�u ?�"� •'"+' `per". AP V. NDW NpQ n moo;:., gl ysz:V/rm4 , - -.� p,M'p,�o 0.1 city of �. Newport Beach 4gRKF.tdT_•' ►L06"WtNR DIVISION i'J •�0•�% O T�� 8ve SCALE IN FEET I CITY OF NEWPORT $EACH BLUFFS AREA GROUND WATER STUDY JUINE 1978 JAMES M. MONTGOMERY. CONSULTING ENGII1 PASADENA • IRVINE • LA JOLLA • WALNUT CREEK BOISE • FORT LAUDERDALE • LAS VEGAS • WASHINGTON C & G ENGINEERING (PORTLAND • SALEM, OR.) I t 1 1 1 DAMES M. MOIVTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Park Circle, Suite 201, Irvine, California 92714 / (714) 979-8733 WATER RESOURCES DIVISION RARLH,WIEDE FRED K DUREN,,R. RONA D L DARM June 29, 1978 Mr. R. V. Hogan, Director Department of Community Development City of Newport Beach 3300 Newport Blvd. Newport Beach, California 92660 Dear Mr. Hogan: In accordance with discussions on June 16, 1978, and our previous conversations, we are transmitting 25 copies of our final report entitled "Bluffs Area Ground Water Study". The report describes the results of Phase I and Phase II investigations, as defined in the agreement dated June 25, 1978. Also included is a brief summary of findings, conclusions and recommendations resulting from this study. ' The conduct of study for this project included two phases of investigation. The Phase I portion consisted of collection and review of existing reports, dealing with soils, geology, hydrogeology, ' the evaluation of aeHal photos, geologic maps and grading plans, the collection and analysis of ground water seepage samples, and the completion of reconnaissance geologic mapping in the study area. Phase II investigations included the excavation of eleven exploratory bore holes and construction of piezometer wells at each location, ' the completion of field and laboratory permeability testing, subsurface soil sampling and testing, and collection and analysis of ground water samples. Additional work included consumptive use studies of ' irrigated areas, the evaluation of quantities of subsurface inflow and outflow, and evaluation of the source and movement of ground water. The final portion of Phase II investigations consisted of reviewing ' the existing ground water related problems and the potential geologic hazards, and evaluating alternative remedial measures. L E N G I N E E R I N G JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 17802 Sky Perk Circle, Suite 201. Irvine, California 92707/ (71,l) 979-8733 Mr. R. V. Hogan, Director City of Newport Beach -2- June 29, 1978 1 It has been a pleasure to work on this interesting and challenging project. It is hoped that the information provided will add significantly to the understanding of the source, occurrence and movement of ground water provide any additional assi have, please do not hesitai Ver t my yours, Robert H. Ramsey Project Engineer Karl H. Wiebe Project Manager Enclosures /ncy ' CITY OF NEWPORT BEACH BLUFFS AREA ' GROUND WATER STUDY June1978 IJAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 1 PROJECT STAFF ORGANIZATION Karl H. Wiebe Manager, Water Resources Division Robert H. Ramsey Project Engineer GEOLOGY AND HYDROLOGY Robert H. Ramsey Senior Hydrogeologist James A. Goodrich Associate Hydrogeologist SOILS CONSULTANT AND EXPLORATION SUBCONTRACTOR Converse, Davis, Dixon Associates, Inc. GRAPHIC ARTS James A. Goodrich TABLE OF CONTENTS CHAPTER 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Scope of Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Description of the Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Conduct of Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 CHAPTER 2. GEOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Stratigraphy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 CHAPTER 3. HYDROLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Precipitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Municipal Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Consumptive Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 CHAPTER 4. HYDROGEOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Tertiary Marine Sediments . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Quaternary Terrace Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Water Transmission Characteristics . . . . . . . . . . . . . . . . . . . . . . . 4-3 Ground Water Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Ground Water Origin, Occurrence, and Movement . . . . . . . . . . . . . . . . . 4-6 CHAPTERS. GROUND WATER QUALITY . . . . . . . . . . . . . . . . . . . . . 5-1 CHAPTER 6. GEOLOGIC HAZARDS AND REMEDIAL MEASURES . . . . . . . . . . 6-1 Geologic Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Remedial Measures . 6-2 Drainage System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 CHAPTER 7. FINDINGS, CONCLUSIONS AND RECOMMENDATIONS . . . . . . . . 7-1 Findings and Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 1 II ' Table of Contents APPENDIX A. REFERENCES APPENDIX B. BORING LOGS APPENDIX C. WATER QUALITY ANALYSES IH Table of Contents LIST OF TABLES Table No. 3-1 Summary of Precipitation Data, Page Corona Del Mar Station 169 . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3-2 Irrigated Acreage Within the Bluffs Area . . . . . . . . . . . . . . . . . . . . 3-3 3-3 Summary of Applied Water (in acre feet) . . . . . . . . . . . . . . . . . . . . 3-4 3-4 Values of Mean Monthly Consumptive Use and Evapotranspiration Potential (ETP) (in inches ofwater) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3-5 Summary of Annual Water Supply and Consumptive Use, Bluffs.Study Area (in acre feet) . . . . . . . . . . . . . . . . . . . . . . . . 3-6 4-1 Exploration Boring Data, Bluffs Area Ground Water Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4-2 Summary of Water Transmission Characteristics . . . . . . . . . . . . . . . . . 4-4 4-3 Ground Water Level Measurements . . . . . . . . . . . . . . . . . . . . . . . 4-5 5-1 Metropolitan Water District Water Analyses . . . . . . . . . . . . . . . . . . . 5-2 l iii Table of Contents LIST OF FIGURES ' Follows Figure No. Page 1 Vicinity Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2 Generalized Hydrogeologic Cross Section . . . . . . . . . . . . . . . . . . . • 2-1 3 Average Annual Water Use Values • 3-7 1 ,1 iv Table of Contents LIST OF PLATES Plate No. (In Pocket) I Geologic Map II Genralized Contour Map - Bedrock/Terrace Deposit Contact III Generalized Ground Water Level Contour Map 1 I v I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 [J i I I I I CHAPTER 1 INTRODUCTION AUTHORIZATION On February 6, 1978, the City of Newport Beach authorized James M. Montgomery, Consulting Engineers, Inc. to conduct a hydrogeologic investigation in the Bluffs area to determine the source, occurrence and movement of ground waters which had been encountered in several locations. This report presents our review and analysis of the geology, hydrology and water quality in the area, as well as engineering information collected during the course of the study. SCOPE OF WORK The scope of work for the Bluffs Area Ground Water Study consisted of two phases which are described below. The first phase included the review of all pertinent files, maps, reports and air photos. The second phase consisted of on -site data collection, followed by data analysis, evaluation and report preparation. Specific tasks are described as follows: IPhase I Investigations I "l) Review all pertinent soils and geologic data and reports which are available in the City's files, and evaluate that data in relation to the proposed project. 2) Review additional data and maps which may be available from the Irvine Company, the University of California, the California Department of Water Resources, and the Orange County Environmental Management Agency. 3) Provide written recommendations to the City for exploratory drilling, piezometer construction, and field mapping program to provide required additional surface and subsurface information." and, Phase H Investigations "l) Drill and construct approximately 10 exploratory holes and piezometers, and where applicable, conduct short injection tests to determine hydraulic properties of the aquifers. I 2) Define and map the terrace/bedrock contact, insofar as possible, along the edge of the Bluffs and at the sites of the exploratory borings. I 1-1 Introduction 3) Excavate and map backhoe trenches in several seepage areas at the base of the Bluffs ' along Backbay Drive. 4) Conduct limited -scale evapotranspiration studies. ' 5) Conduct a detailed program of ground water sampling and mineral analyses, using advanced in-house constituent analytical techniques. 6) From the available data, construct interpretive maps depicting ground water elevation contours, bedrock elevations and thickness contours of the terrace materials. items 7) When the above tasks are completed, undertake the following of work: a) Determine the character of the underlying aquifers. b) Determine whether flows are confined to the bedrock/terrace interface and ' provide supporting information. c) Provide a map showing the generalized configueration of the terrace/bedrock ' contact surface. d) Determine whether areas outside the Bluffs contribute ground water to the study ' area. e) Determine existing flow directions of subsurface waters. ' f) Compare bedrock elevation data to ground surface elevations to delineate areas which may experience potential problems from the buildup of ground water. ' g) Estimate the quantity of subsurface inflow and outflow in the study area. 1 II I I '1 8) Provide recommendations for location and installation of permanent observation and monitoring facilities 9) Summarize limitations of study. 10) Provide detailed recommendations for remedial measures, including possible modification of patterns and application rates of irrigation waters, and recommendations for the design of potential dewatering facilities. 11) Prepare a final report describing the ground water regimen and provide conclusions regarding the source, movement and ultimate destination of ground waters in the area. Provide 25 copies of the final report, together with sepia copies of each plate to the City.,, 1-2 I 1 JI I I P i Introduction DESCRIPTION OF TIDE AREA The Bluffs area, as shown on the Vicinity Map, Figure 1, is centered on longitude 1170 52'30" West, and latitude 330 38' North. This area is bordered on the north and west by Upper Newport Bay, on the south by Big Canyon, and on the east by Eastbluff Drive and residential developments on low terraced hills. The study area, known as the Bluffs, has been developed for single and multi -family residential use. This developed area lies primarily on Quaternary terrace materials which have been deposited upon a wave -cut bench lying about 100 feet above present sea level. The study area comprises approximately 250 acres. CONDUCT OF STUDY The Bluffs Area Ground Water Study was conducted in two phases. The investigations during the first phase included collection and review of 32 reports dealing with soils, geology and hydrogeology, the evaluation of aerial photos, geologic maps and grading plans, the collection and analysis of ground water seepage samples, and the completion of reconnaissance geologic mapping in the study area. Work for this portion of the investigation was completed during the month of February, 1978. A brief letter report summarizing the results of Phase I Investigations and presenting recommendations for an exploratory drilling program was submitted to the City on February 24, 1978. Due to heavy spring rains of 1978, considerable delay was experienced in scheduling the exploratory drilling program for the Phase II portion of the study. As a result, drilling was not initiated until May 10, and subsequently was completed on May 15, 1978, Operations included excavation of the 10 originally proposed bore holes plus one additional hole in the eastern portion of the study area. Injection tests were performed in four of the bore holes to determine hydraulic parameters of the subsurface materials. Upon completion of the tests, the six recommended piezometers were installed plus additional piezometers in each remaining five borings. These piezometer units were completed with traffic condition vaults to provide a permanent network of piezometer wells for monitoring future ground water conditions. Water samples were collected from each of the bore holes and later analyzed for selected chemical and physical characteristics. Subsequent to completion of exploratory drilling,water level measurements were collected at each of the newly constructed piezometer wells. These data combined with results of permeability testing and consumptive use studies were used to evaluate the source, occurrence and movement of the ground water through the Bluffs area. Ground water related problems and potential geologic hazards were reviewed and various alternative remedial measures which could help reduce or control existing and future high ground water conditions were evaluated. Slope failures and small landslides caused by spring rains occurred along the bluffs during the month of March, 1978. The resulting new exposures at the head of the slides provided an excellent opportunity to observe fresh, unweathered formation materials, thereby eliminating the need for backhoe trenclung. This change in requirements allowed additional funds to be used for detailed mapping along the cliff area and the excavation of the additional bore hole. 1-3 r C `S.. y i O S T ' ,�� soy 's m. `� ' , v3•' HanteN' a� `:i •" :Lind re. , •:v .yc �.. _—.. �•.. OAV rate �• r � :a 1n`• ;;1,•'���•'";:'y:; 'p�P Park '"tier )) G•r �I .. . .�.':i::�;t::�• j,.. •��• lky alY aMY• $Cfl. � �.I � y "t !:a[. •..'t •• i�...,:.�. SI ti� STUDY � Y s _::_; �,•..��;�, , �' 'S ar AREA r 1' 2�4 `� ='i �••'� — + •��` � ,. v IOr `�arona del M1lar �,! m • / , t ,° i': .-4 .-.I H'eh S<h craft � v _ $Chi ♦� Mp rN Re/ ec ♦_ +r• � / —N �- Q � 6t5�_�!I �\ 80-'�•" ,� :. j!$il :• ll ` r�y0%i% _i:,,, _ 1. : a` „_a•:;:..:.•:,.; :' ;.. ;, � .:. , J I _ , tom' �i•C eY`\ ♦L • ip0 � i e � llnda� From USGS Newport Beach Ouadrongle,1965 VICINITY MAP -I(- : 1 BLUFFS GROUND WATER STUDY FIGURE I Introduction The information collected and developed during the Phase II investigations was reviewed, analyzed and evaluated, and a summary report prepared. The report in final draft form was submitted to the Community Development Department for review on June 16, 1978. ' 'ACKNOWLEDGMENTS During our investigation, the staff of James M. Montgomery, Consulting Engineers, Inc., received ' cooperation and assistance from the technical and administrative staff of the City of Newport Beach, the Irvine Company, and the Bluffs Homeowners Association. We particularly wish to thank the following individuals: L J ' The help whit H H James Evans, City of Newport Beach William Dye, City of Newport Beach Beverly Wood, City of Newport Beach Douglas Wood, Robert Bein, William Frost, and Associates Chet Purcel, Bluffs Homeowner's Association Jim Peglau, Bluffs Homeowner's Association Harris E. Coutchie, Irvine Company James Dooley, Holstein Industries I iI II p H I I I 0 I I II I CHAPTER 2 GEOLOGY 1 This section of the report summarizes the geology in and adjacent to the Bluffs study area. Field verification of previously mapped and published geologic interpretations was conducted during March, 1978. Previous mapping included work by Morton, Miller and Fife (1973), and by Vedder (1970). The general geologic map compiled by James M. Montgomery, Consulting Engineers, Inc., is presented on Plate I. STRATIGRAPHY L !__ �J I I i I 1 The study area is underlain by Tertiary -age marine sediments (bedrock units) which are unconformably overlain by Quaternary -age marine and non -marine Terrace Deposits. The Tertiary units are exposed in the cliff areas adjacent to Upper Newport Bay and also in cut slope areas of the developed residential areas to the east. The Quaternary materials cap the Tertiary units and are best exposed in the northwestern part of the Bluffs, along the upper cliff areas. Figure 2, a Generalized Hydrogeologic Cross Section, shows the relationship between the Tertiary units and the Quaternary materials. Plate II shows generalized contours on the bedrock/Terrace Deposit contact. Tertiary Marine Formations (Bedrock Units) The oldest bedrock unit in the study area is the Late Miocene -age Monterey Formation (Tm), exposed in the cliffs adjacent to Big Canyon. This unit consists of thinly bedded siltstones, siliceous shales and claystones which were deposited in a deep marine environment. The unit is probably about 400 feet thick and dips from 10 to 65 degrees to the northeast. Unlike the younger Tertiary formations in the area, the Monterey Formation is highly deformed and fractured. Deposition of the overlying Capistrano Formation (TO was preceded by an episode of deformation and erosion. Continuing through Pleistocene time, the marine basin in which the Tertiary bedrock sequence was deposited was slowly being uplifted. The Late Miocene to Early Pliocene -age Capistrano Formation lies in angular discordance with the underlying Monterey Formation. The Capistrano Formation is exposed in the cliff area near the mouth of Big Canyon. This unit, though generally consisting of thinly bedded siltstone, contains a range of rock types from concretionary conglomerates to thinly laminated siliceous shales. The Capistrano Formation is estimated to be about 450 feet thick in the study area and dips between 7 and 35 degrees to the northeast. Because the Tertiary marine basin was being uplifted, the Capistrano Formation was deposited in shallower water than the Monterey Formation, resulting in a generally coarser and more varied sediment grain size. 2-1 w z 0 O F- r a 40 m > Y w O J Q w al 0 z O Bp- WEST S-4 NORTHWEST P-7 QUATERNARY TERRACE i CAPISTRANO FORMATION P-B P-6 BLUFFS AREA GROUND WATER STUDY EAST n GENERALIZED HYDROGEOLOGIC CROSS-SECTION P-11 120 P 6 EXPLANATION _- EPOSITaS, •�-• -�' `�• �� -� '� � BORING P-6 S= Slug Test Well P= Piazometer Well Bo _7_ WATER LEVEL (May, IS78) — — — BEDROCK/TERRACE DEPOSITS CONTACT QUATERNARY TERRACE DEPOSITS 40 TERTIARY (BEDROCK) FORMATIONS (As Indicated on cross -sections) QUATERNARY TERRACE DEPOSITS y / a r a to NIGUEL to / CAPISTRANO FORMATION q FORMATION to I 0 200 400 $00 Boo 1000 HORIZONTAL SCALE IN FEET ELEVATION DATUM! MEAN SEA LEVEL SOUTHEAST S-3 120 S-1 I JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. //MONTEREY FORMATION BO 40 FIGURE 2 Geology Unconformably overlying the Capistrano Formation is the Pliocene -age Niguel Formation (Tn) which is exposed in the bluffs adjacent to Upper Newport Bay. The Niguel Formation was previously mapped by Vedder (1970) as the "Unnamed Sandstone." However, Miller and Tan (1976) correlated that unit to the nearby Niguel Formation. The Niguel consists chiefly of thick, poorly bedded siltstones and fine-grained silty sandstones with occasional thin concretionary siltstone beds. The section is estimated to be about 1,050 feet thick (Vedder, 1970) and dips about 10 to 15 degrees to the northeast. The coarser grained sediments of the Niguel Formation suggest a relative shallow marine depositional environment. During Pleistocene time, the Tertiary beds were uplifted and mildly folded. Subsequent to folding, ' the bedrock units were planated into a series of wave cut platforms or terraced benches that now lie at elevations between 50 and 200 feet above present sea level. ' Quaternary Units The Late Pleistocene -age marine and non -marine Terrace Deposits (Qtm) were deposited with 1 angular discordance on the terraced Tertiary sequence. Previous to residential development, these distinctive reddish, weathered sediments were exposed in the upper portions of the bluffs, and also capped most of the surrounding low hills. However, these deposits were locally removed during ' development and are now seen only in scattered outcrops in the cliffs and in cut slopes within the developments. The Terrace Deposits consist of silty sand, sand and gravel that is generally poorly bedded, but locally exhibit some crossbedding. A distinctive feature of these deposits is the abundance of marine shell fragments. Within the project area, the maximum thickness of these materials is estimated to be about 30 feet. However, in adjacent areas, these sediments may be as much as 125 feet thick (Miller and Tan, 1976). The marine Terrace Deposits were deposited in a ' nearshore and beach environment. The non -marine Terrace Deposits consist of dune sands and alluvial materials which were deposited on -shore. STRUCTURE The Tertiary Bedrock sequence exhibits well -developed fracture sets which trend northeast -southwest. In. the Monterey and Capistrano Formations, the joint sets are closely spaced, whereas, in the Niguel Formation they are more widely separated. Only minor faulting was noted in the Monterey Formation. Faults which were observed do not appear to cut the Terrace Deposits, nor do they appear to be extensive. One fault trended northwest -southeast, and the other trended northeast -southwest. The Pelican Hills Fault has been ' assumed to extend beneath the eastern portion of the study area, but does not appear to extend to the cliff faces along Backbay Drive. Landsliding of the Terrace Deposits and Tertiary sediments has occurred along the bluff edge in historic time. The latest event occurred in March, 1978, when saturated slope debris slumped across Backbay Drive at three locations. The slumps and slides, along with other pertinent geologic features in the area are depicted on Plate I. ' 2-2 I 1 C' I CHAPTER 3 HYDROLOGY This section presents a summary of general hydrologic features that exist in the Bluffs area. The features evaluated include data on precipitation, irrigation supplies, consumptive use of plants and potential evapotranspiration. The period of analysis for hydrologic conditions extended from January 1970 to March 1978. ' PRECIPITATION Precipitation data for the study was obtained from the Corona del Mar Station No. 169 near Big Canyon Reservoir. The facilities include both a Standard -type manually measured gage and a continuous recording rain gage, which are maintained by the County of Orange. Specific information and measurements were obtained from the Orange County Environmental Management Agency. Precipitation data is presented in Table 3-1. MUNICIPAL WATER SUPPLY I I C! LJ Water supplies delivered to the Bluffs area are divided into residential and irrigation increments, and are recorded through separate metering systems. The majority of the water supplies are utilized for irrigating greenbelt and ground cover areas. The remaining increment is consumed for domestic purposes. A municipal sewage system serves the entire area. Wastewaters are exported for treatment and ultimate discharge to the ocean. The annual quantities of water applied in the Bluffs for irrigation purposes were determined from a review of available meter readings of the irrigation system. The areal extent of the Bluffs study area is approximately 250 acres. This includes residential and greenbelt areas of the Bluffs Homeowner's Association, the Plaza Homeowners Association, East Bluff Park and Our Lady Queen of Angels Church. Two adjacent areas, the East Bluff Elementary School and Corona del Mar High Schoola), contain approximately 28 acres of greenbelt and were also considered in determining irrigated acreage contributing water to the Bluffs area. The total acreage of irrigated areas affecting the Bluffs are listed in Table 3-2. All available water meter records for the irrigated areas were obtained for the period from 1964 to the present. However, due to incomplete residential development, only partial information is available prior to 1970. Complete records of water application from 1970 to the present are shown in Table 3-3. a)It should be noted that these schools are actually outside of the assigned study area. 3-1 m r m m" m m� m" m an m m m m m m m w N TABLE 3-1 SUMMARY OF PRECIPITATION DATA CORONA DEL MAR STATION 169 Rainfall: Monthly Total Cmmnlative Annual_ Total Month J F M A M J J A S O N D FYear 1.83 1.11 2.26 0.00 0.00 0.16 0.00 0.00 0.00 Trace 3.00 3.11 70 1.83 2.94 5.20 5.20 5.36 5.36 5.36 5.36 5.36 11.47 5.20 8.36 0.62 0.26 0.21 0.53 1.03 0.12 0.00 0.00 0.00 0.30 0.13 4.35 971 0.62 0.88 1. 22 2.77 2.77 2.77 2.77 7.55 1. 99 2.65 3.07 3.20 0.00 0.15 0.03 0.17 0.12 0.24 0.00 0.16 0.04 0.36 3.10 1.21 1972 0.00 0.15 0.35 0.71 0.91 5.58 0.18 0.47 0.71 0.87 1.27 4.37 3.46 4.21 2.41 0.08 0.00 0.00 0.00 Trace 0.00 0.04 1.18 0.34 1973 3.46 10.16 11.72 7.67 10.08 10.16 10.16 10.16 10.16 10.16 10.20 11.38 4.02 0.03 3.44 0.41 0.22 0.05 0.00 0.00 0.00 0.41 0.11 4.72 1974 4.02 -T. 9-0 13.41 4. 55 -T. 4-9 8.12 8.17 8.17 8.17 8.17 8.58 8.69 0.42 1.88 3.65 2.47 0.07 0.01 0.00 0.00 0.01 0.44 0.23 0.37 1975 0.42 9.55 2.30 5.95 8.42 8.49 6.50 8.50 8.50 8.51 8.95 9.18 0.00 2.39 1.50 2.03 0.03 0.43 0.00 0.00 2.21 0.16 0.83 0.26 1976 0.00 2.39 3.89 5.92 5.95 6.38 6.38 6.38 8.59 8.75 9.58 9.84 2.97 0.90 1.13 0.00 2.15 0.00 0.00 1.85 0.00 0.01 0.02 2.26 1977 2.97 3.87 5.00 5.00 7.15 7.15 7.15 9.00 9.00 9.01 9.03 11.29 8.04 4.64 8.40 1.85 0.02 1978 8. 44 12.68 21.08 22.93 22.95 R a 0 O k L� I I I I I I I I I i 'I Hydrology W.[]1MM IRRIGATED ACREAGE WITHIN THE BLUFFS AREA Area Designation Bluffs Homeowners Association Plaza Homeowners Association East Bluff Park East Bluff Elementary Corona del Mar High School Our Lady Queen of Angels Church Total CONSUMPTIVE USE Approximate Irrigated Acreage 93.6 7.3 13.7 6.2 22.0 4.6 147.4 acres In order to maintain the greenbelt and ground cover areas in a healthy and hush condition, a certain amount of water must be applied annually. For purposes of this report, the application requirement to keep the vegetation in this condition is called consumptive use. If water is applied in excess of what the plants consumptively use, the excess water evaporates, runs off as surface flow and/or percolates past the root zone to the ground water table. Much of the landscaped surface in the Bluffs area is underlain by the Terrace Deposits (Qtm) which is relatively permeable. Because of this soil permeability, irrigation waters or precipitation which percolate is available to the plants for only a short period of time before it moves past the root zone. As a result, application of irrigation water is made relatively frequently. To determine the approximate quantity of precipitation and applied water which could percolate to the ground water table, water application and rainfall records were compared with estimated consumptive use requirements for local plants and grasses in the Bluffs area. Detailed studies of evapotranspiration and consumptive use values for various plants have been conducted at the South Coast Field Station in Irvine, by the University of California. The results of these investigations can be readily applied to the Bluffs area by relating local temperature and percent of daylight hours. Studies have shown that cool climate turf grasses such as bermuda, fescue and Kentucky blue grass consumptively use about 42.56 inches of water annuailyb). Plants and ground cover such as ivy, daisies, and shrubs, are reportedc) to have a water requirement of approximately one half that of b)These results compare favorably to values from the California Department of Water Resources and from the University of California Agricultural Extension Service in Riverside, CA. °)Personal communication, Mr. Ralph Strohman, UCR. I 3-3 m m m m� M � i m m i m � M m m= man TABLE 3-3 SUMMARY OF APPLIED WATER (in acre feet) Area Designation 1970 1971 1972 1973 1974 1975 1976 1977 Bluff Association 297.3 336.8 338.2 320.5 331.3 229.6 259.3 240.6 Plaza Association -- -- -- 15.9 17.7 16.4 20.5 20.4 East Bluff Elementary(2) 9.9(1) 15.3 17.7 18.4 16.5 14.2 17.9 15.7 East Bluff Park 46.7 67.6 60.5 62.2 35.0 29.8 29.3 22.9 Corona del Mar H.S.(2) 39.9 30.2 29.7 36.3 35.4 46.8 45.7 42.0 Our Lady Queen of Angels 3.5 2.4 5.3 1.4 0.9 4.6 8.1 4.9 Totals 397.7 4S2.3 1 451.4 1 454.7 436.8 341.4 380.8 346.5 Notes: (1) Partial Records; (2) Estimated domestic consumption deducted from total delivered supplies. Iq a 0 0 UE, LJ I r Lv I 11 1J 11 I I I Hydrology cool climate grasses, or about 21.30 inches annually. In Table 3-4 the estimated consumptive use values for landscaped and greenbelt areas are compared with evapotranspiration potential, the water loss which would occur if at no time there was a deficiency of water in the soil for use by vegetation. From the table it can be observed that the evapotranspiration potential is greater than actual consumptive use requirement. TABLE 3-4 VALUES OF MEAN MONTHLY CONSUMPTIVE USE AND EVAPOTRANSPIRATION POTENTIAL (ETP) (in inches of water) Month Estimated Cool Climate Grasses Estimated Ground Covers (daisies, ivy, etc.) Evapotranspiration potential (ETP) January 1.69 0.85 1.86 February 1.78 0.89 2.23 March 2.62 1.31 3.10 April (4.21) 2.10 3.95 May (4.74) 2.37 4.67 June 4.85 2.43 4.92 July 5.95 2.98 6.46 August 5.42 2.71 6.40 September 3.95 1.98 5.60 October 3.37 1.69 4.95 November 2.32 1.16 3.35 December 1.66 0.83 2.30 Annual Total 42.56 21.30 49.76 A summary of annual water supply and consumptive use for irrigated acreage within and immediately adjacent to the study area is presented in Table 3-5. The table shows estimates of applied water, precipitation, consumptive use and the amount of excess water which was available for percolation to the water table during the years 1970-1977. From these data, it appeals that a supply in excess of consumptive use has been applied in every year except 1975. During the years from 1970 through 1974, the excess watering increased to a maximum of about 112 acre-feet per year. However, since 1975 this trend has been reversed as a result of both subnormal rainfall and an apparent modification of irrigation patterns. It should be noted that not all excess water is available for percolation to the ground water table. A certain percentage is lost to surface runoff, to evaporation and to the replenishment of soil moisture deficiencies which develop during periods of insufficient supply. It is apparent, however, that over -irrigation has resulted in some excess supply to recharge to ground water in the Bluffs area. In addition to over -irrigation, a certain percentage of surface runoff from impermeable surfaces (roofs, streets, sidewalks, etc.) contributes recharge to the ground water table. 3-5 M i M M M M M i Mae MAN M r M M M r M w ON TABLE 3-5 SUMMARY OF ANNUAL WATER SUPPLY AND CONSUMPTIVE USEd) BLUFFS STUDY AREA (in acre feet) 1970 1971 1972 1973 1974 1975 1976 1977 Irrigation (applied water) 397.7 452.3 451.4 438.8 419.1 325.0 380.8 346.5 Precipitation 141.0 98.9 68.6 144.1 164.8 117.4 120.9 138.8 Consumptive Use 471.7 471.7 471.7 471.7 471.7 471.7 471.7 471.7 Excess water (underwatering) 67.0 79.6 48.4 111.2 112.2 (29.2) 30.1 13.8 (d)Total irrigated area equals 147.4 acres. 9 Hydrology Figure 3 graphically illustrates average annual precipitation and irrigation supplies, estimated consumptive use and evapotranspiration potential for the period from 1970 to 1978. The data for evapotranspiration potential were obtained from floating evaporation pan measurements collected ' at Big Canyon Reservoir. In summary, the data suggests that recharge from over -irrigation has been occurring since 1970 within the Bluffs area. Records indicate that annual surplus water in excess of consumptive use has ranged from approximately 14 to 112 acre-feet. During recent years subnormal rainfall and modification of irrigation practices has significantly reduced annual surplus water. The largest portion of excess irrigation has been derived from within the Bluffs Homeowner's Association. Other areas including Eastbluff Elementary School, the Plaza Association, and Eastbluff Park have variously applied water both above and below consumptive use requirements. Corona del Mar High School, on the other hand, has consistantly underwatered their greenbelt areas. 1 F IJ `J 1 1 1 1 1 1 1 1 49.8" o < - 47.1 y w 42.5" za rc a in 'z W u cc z w ~ w y > > O < w ~ a a 3 O w 0. w a0 U 1 a w y a a Q y j 7 O Z z O J to ¢= U 0 O CO K U AVERAGE ANNUAL WATER USE VALUES Values for Bluffs Homeowners Assoslotlon and Eastbluff Park (107.3 acres) JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. FIGURE 3 I IJ 1 1 n J I CHAPTER 4 HYDROGEOLOGY ' This section presents an analysis of the hydrogeologic conditions in the Bluffs area. Included in the following paragraphs are: 1) a lithologic description of the Quaternary Terrace and Tertiary bedrock materials encountered during exploratory boring, 2) an analysis of hydraulic characteristics of the water bearing formations as determined by field and laboratory permeability tests, 3) a discussion of ground water level conditions, and 4) a discussion of the origin, occurrence ' and movement of ground water in and through the study area. TERTIARY MARINE SEDIMENTS (Bedrock Units) Although the Monterey Formation underlies the study area at depth, the Monterey was not encountered during the exploratory drilling program. Bore holes ranged in depth from 21 to 43 feet below ground surface and encountered Terrace Deposits, Capistrano and Niguel Formations. Capistrano sediments were found beneath the Terrace Deposits in the southern portion of the Bluffs at Borings No. 1, 2, 3, 4, 6, 7, and 11. Niguel Formation materials were encountered in the four ' northern most borings, Nos. 5, 8, 9, and 10. The location of the exploratory sites is shown on the Geologic Map, Plate I. A summary of drilling data is shown on Table 4-1. A brief description of the salient features observed as a result of mapping and exploration is presented in the following ' paragraphs. Capistrano Formation ' Capistrano sediments were found at depths ranging from 13.5 to 28 feet below ground surface. Elevations on the eroded upper surface of the Capistrano Formation range from 81 to 103 feet ' above mean sea level. The top of these materials form a bench of gentle to moderate relief. Drilling data suggests the occurrence of a shallow valley in the south-central portion of the Bluffs. This feature can be seen on Plate II, which shows elevation contours of the bedrock/Terrace Deposit interface. Drive samples collected from borings reveal that the Capistrano is composed of siltstone, ranging in color from grey to green to red brown. Deposits are very thinly bedded; they exhibit moderate hardness and show occasional weathered horizons. Moderate to high fracturing was noted ' throughout these sediments, with occasional pockets of fine sand along fracture planes. The Capistrano sediments contained ground water under saturated conditions at each of the bore hole locations. Niguel Formation Sediments of the Niguel Formation were encountered in the northern portion of the study area at Borings No. 5, 8, 9, and 10, at depths from less than I to 21.5 feet below ground surface. Elevations on the bedrock/Terrace Deposit interface range from 76 to 103 feet above sea level. Contours on the surface of the Niguel Formation bench slope moderately to steeply in a northwesterly direction. 1 4-1 M M M M M M M M r M M M M M M s M M M I TABLE 4-1 EXPLORATION BORING DATA BLUFFS AREA GROUND WATER STUDY Well Number Surface Elevation (feet)1 Totalickness Depthf (feet) DepIto Bas Q(feet) (f Qtm Static Water Level (May, 1978)Encountered (feet below G.S.) Bedrock Formation Well Completion Remarks S-1 108 26 14 14 15.9 Capistrano Fm. slug test, piezometer P-2 104 25 17 13+ 16.6 Capistrano Fm. Piezometer S-3 109 31 28 28 18.3 Capistrano Fm. slug test, piezometer S-4 101 31 13.5 13.5 15.0 Capistrano Fm. Slug test, double piezometer P-5 83 43 7.5(?) 7.50) (Dry) Niguel Fm. Piezometer P-6 109.5 36 21 16+ 23.0 Capistrano Fm. Piezometer P-7A 118 34 25 17+ 23.0 Capistrano Fm. Piezometer P-8 107 36 20.5 20.5 22.3 Niguel Fm. Piezometer S-9 107 26 5.5 5.5 13.7 Niguel Fm. Slug test, piezometer P-10 78 21 0 0 2.0 Niguel Fm. Piezometer P-11 117.5 25 15 15 14.6 Capistrano Fm. Piezometer 1)Elevation Datum - mean sea level. o. 0 12 O 6 Hydrogeology Samples of the Niguel collected for examination indicate that these sediments are massive to distinctly bedded, are moderately hard siltstone, and vary in color from medium blue-green to yellow -brown or brown. The Niguel siltstone is moderately to high fractured and exhibits local weathering. In the western portion of the study area, at Boring No. 5, the Niguel consists of light ' yellow brown to brown, fine to medium grained sandstone. The sandstone at this location is medium dense to soft, exhibits slight fracturing and appears to have both a moderate primary and secondary permeability. Lithologic logs prepared for each of the borings are shown in Appendix B. QUATERNARY TERRACE DEPOSITS Terrace Deposits were observed in each of the project exploration borings except boring No. 10. The thickness of these materials ranges from 5 to 28 feet with elevations on the base of the formation, varying between 76 and 103 feet above sea level. In general, this unit has the greatest thickness in the southern and central portion of study area and thins appreciably to the north. Drive samples collected during drilling show the Terrace materials to consist of fine to medium grained sand with occasional silt and coarse sandy layers. The sands range from medium brown to reddish -brown in color, are soft to moderately dense, and are generally indistinctly bedded with only occasional cross bedding. From both field inspection and permeability tests, the Terrace Deposits appear to have moderate permeability and were usually saturated in the lower 1 to 3 feet ' of the deposit. WATER TRANSMISSION CHARACTERISTICS In order to obtain an understanding of the water bearing characteristics of the bedrock and terrace units, both field and laboratory permeability tests were conducted. Drive samples were collected at ten of the eleven boring locations for examinations and possible later laboratory permeability analysis. To analyze the nature of fracture or secondary permeability, injection or slug tests were conducted in four of the borings. Field permeability analysis consisted of constant head injection ' and declining head tests. Data from these tests were analyzed for coefficients of permeability and transmissivity by the C.V. Theis, and C.E. Jacoba) methods for recovery and slug testing. Constant head data were also analyzed by the J.F. Logan method for well specific capacitiesb). The results of field and laboratory testing is shown on the Summary of Water Transmission Characteristics, Table 4-2. The permeability coefficient is a measure of the volume of water that will ' flow through a one square foot section of aquifer under a unit hydraulic gradient, and is measured in gallons per day per square foot (gpd/ft2). The coefficient of transmissivity is a measure of the total volume of water that will flow through a one foot wide saturated strip of aquifer, and is measured in gallons per day per foot (gpd/ft) As shown on Table 4-2. the bedrock materials (Capistrano and Niguel) exhibit average transmissivity values of 65 to 346 gpd/ft. Areal variations of these values reflect the degree of fracturing and thickness of the zone of saturation in the acquifer. a)J. G. Ferris and Others, 1962 "Theory of Aquifer Tests", USGS Water Supply Paper 1536-E. b)J.F. Logan, 1964 "Estimating Transmissibility from Routine Production Tests of Water Wells," Ground Water Jdumal, National Water Well Association 2:35. 4-3 TABLE 4-2 SUMMARY OF WATER TRANSMISSION CHARACTERISTICS Field Test Results Test Site/ Boring No. Aquifer Material Saturated Thickness permeability (gpd/ft2) Transmissivity Values (gpd/ft) (feet) Theis/Jacob Logan Average S-1 Bedrock (TO 18 1 - 15 14 - 274 74 120 S-3 Terrace (Qtm) 3 76 230 824 526 S-4 Bedrock (To) 17.5 7 - 22 117 - 379 543 346 S-9 Bedrock (Tn) 20 1 - 5 12 - 93 92 66 tLaboratory Results Test Site/ Boring No. Aquifer Material Estimated Thickness (feet) Dry Density (lb per cu. ft.) Permeability (ft./day) 2 (gpd/ft ) S-4 Terrace (Qtm) 13.5 104.3 3.8 x 10-3 2.8 x 10 2 P-5 Niguel (Tn) 35 102.3 .64 4.8 P-5 Niguel (Tn) 35 110.9 .27 2.0 P-7 Terrace (Qtm) 16 109.4 .03 2.25 x 10 1 M E Hydrogeology The Terrace Deposits exhibit an average transmissivity of 527 gpd/ft. However, only three foot section of saturated aquifer wast tested. Comparision of the permeability and transmissivity values for both the Terrace Deposits and bedrock units indicate a markedly higher water transmission capacity in the terrace materials. GROUND WATER LEVELS ' Static water level measurements were takena at each of the piezometer wells subsequent to well completion, and also at the slug test wells just prior to injection testing. Initial water level observations, as well as later periodic measurements, are listed on Table 4-3. Data obtained on May 16, 1978 have been plotted on the base map in the form of a water level contour map. As shown on Plate III, the surface of ground water slopes in a westerly to southwesterly direction across to Bluffs area. In the central portion of the study area, a ground water ridge extends to the southwest. Along this ridge, the water table is found from 3 to 5 feet above the base of the Terrace Deposits. In the northern and southern areas, the water table occurs near the bedrock/Terrace Deposit contact. ' TABLE 4-3 GROUND WATER LEVEL MEASUREMENTS I I I I I 1 Location Piezometer* Elevation 5/10/78 Water Table Elevation* 5/16/78 6/1/78 6/8/78 S-1 108 95 95.6 95.6 95.6 P-2 104 -- 94.9 95.0 94.9 S-3 109 95 94.2 99.5 94.7 S-4 101 89 89.5 89.2 89.4 P-5 83 Dry Dry Dry Dry P-6 109.5 88.5 90.0 89.7 89.4 P-7 118 110 98.5 98.3 98.4 P-8 107 86.8 88.2 87.8 87.7 S-9 107 96.7 96.9 93.6 93.1 P-10 78 75.3 76.0 74.6 74.2 P-11 117.5 -- 106.4 105.0 104.0 Elevation in feet above mean sea level, USGS Datum. I 4-5 I 1 I 1 1 I 1 I I Hydrogeology GROUND WATER ORIGIN, OCCURRENCE, AND MOVEMENT Observations made during exploratory drilling revealed that the moisture content of the Terrace Deposits generally increases with depth, reaching full saturation near the base of the formation. Additionally, the siltstones of both the Capistrano and Niguel were found to be saturated and to yield water from joint and fracture plane surfaces. As a result of permeability differences between the Terrace Deposits and the Tertiary bedrock units, ground water tends to temporarily mound up along the contact of these materials. During periods of high rainfall, it is possible that water levels in the Terrace Deposits rise considerably throughout the study area. Iri those areas where the Terrace materials thin naturally or have been removed by pre -construction grading, this mounding can produce seeps and saturated zones at the surface or along foundations and other subsurface structures. Several areas which have experienced such seepage problems in the past are shown on Plate III. Seepage is also evident in the bedrock formations, where the zone of saturation intersects the ground surface. This situation can be observed along Backbay Drive where continual seepage produces marshy or perennially wetted areas. Recent landslides along the cliff face have exposed fresh bedrock outcrops in which seepage and spring flow can be readily and directly observed. Spring flow measurements were obtained at two such locations along Backbay Drive. The first spring, located jusy north of the study area, was measured in December 1977, and subsequently on several other occasions. Flow rates, were approximately 5 gpm and have shown only minor fluctuation as a result of heavy spring rains. This suggests a source from within the saturated Tertiary bedrock materials which are little affected by immediate changes in the percolation of rainfall. It is probable that the spring flow rate is primarily controlled by secondary permeability of the bedrock materials. Spring flow at the second location was measured subsequent to the slope failure at a rate of approximately 5 gpm. Prior to landsliding, the actual spring source was covered by slope wash debris and could not be measured. Repeated measurements since March, 1978 have indicated little or no change in flow rate from this spring. In order to determine the magnitude of subsurface ground water flow through the Bluffs study area, an analysis was made of all data obtained from drilling, permeability and transmissivity testing. These data were combined with ground water levels, rainfall, irrigation, consumptive use and spring flow data and used to develop very approximate estimates of ground water supply and disposal. Where: Supply = subsurface inflow + deep percolation of both applied water and precipitation. Disposal = subsurface outflow or alternatively, total effluent spring flow. Subsurface inflow was estimated by preparing flow sections along the northeastern boundary (Eastbluff Drive) and solving the Darcy Equation, Q = PIA. Where: Q = volume of ground water in gallons per day (gpd) P = coefficient of permeability in gallons per day per square foot (gpd/ft2) 924 I 1 I 1 I 1 1 1 Hydrogeology I = hydraulic gradient of the ground water surface in feet per foot A = cross sectional area of flow section. The average annual excess applied water available for percolation (Table 3-5), was then added to the subsurface inflow to arrive at an average ground water supply for approximately 250 acre-feet per year. Two methods were used to determine the outflow or disposal of supply from the Bluffs. The first was to solve the equation Q = PIA through flow sections along the western and southwestern boundary. The second method was to estimate the total spring flow and evapotranspirative losses of phreatophyte growth along Backbay Drive and Big Canyon. The results of these two methods yielded outflows of 196 and 310 acre-feet of outflow per year, respectively, or an average disposal of supply of about 250 acre-feet per year. The results of these hydrologic calculations are considered to be order of magnitude estimates of supply and disposal. Analysis of this information in conjunction with the water level contour map indicates the major portion of the subsurface flow is derived from areas tributary to the Bluffs (east of Eastbluff Drive). This subsurface inflow is supplemented by a small amount of recharge resulting from over irrigation in the Bluffs Association, East Bluff Park, the Plaza Association and East Bluff Elementary School areas. Plate III shows the general direction of ground water flow through the Bluffs. Corresponding to these generalized flow lines, the ground water ultimately appears as seeps and wetted surfaces in residential areas and along the bluff face. "W u I 1 t 1 1 �rl 1 I 1 11 1 I I CHAPTER 5 GROUND WATER QUALITY ' In May, 1978, ground water samples were collected from 10 of the observation piezometers constructed during this project. In addition, water samples were obtained from several springs which emanate from the cliffs along Backbay Drive. Both field and laboratory chemical analyses were conducted on these samples to determine the concentration of various organic and inorganic constituents. A summary of these analyses is included in Appendix C. ' Water supplied to the Bluffs area for irrigation and domestic purposes is imported from Northern California and from the Colorado River by the Metropolitan Water District (MWD). These imported 1 waters are stored in San Joaquin and Big Canyon Reservoirs for service in the Newport Beach area. Water quality information for Colorado and blended water supplies is presented in Table 5-1 in order to provide a reference for constituents found in the Bluffs area ground waters. ' One quality parameter of major interest is specific electrical conductivity. Electrical conductivity is the measure of the ability of water to conduct an electric current, and is measured in micromhos ' per centimeter at 250C. As the amount of dissolved salts increase in solution, the solution becomes more conductive. Therefore, conductance is an approximate measure of total dissolved solids present in the water. Generally, as waters percolate through the ground, they dissolve salts and ' other charged ionic constituents, thus slowly becoming more conductive. Water served to the Bluffs area has a specific electrical conductance ranging from about 700 to ' 1100 micromhos. In sharp contrast, the ground water sampled in the study area ranged from 1986 to 5460 micromhos. Ground water entering the area from the east (P-11) exhibits electrical conductance in excess of 3000 micromhos per centimeter. As the ground water passes under the ' greenbelt areas of the Bluffs, where some recharge occurs, the measured conductance drops to about 2500 micromhos. However, this condition is not noted beneath Corona del Mar High School, suggesting the percolation of only small quantities of excess irrigation water from the school turf. The conductance of ground water rises to over 3000 micromhos by the time ground waters discharge from the springs along Backbay Drive. The salinity observed is due primarily to the re -solution of salts in the marine sediments, as ground waters slowly percolate through those materials. Salt content and conductivity is lowered locally as a result of the percolation of low -salinity irrigation waters. Reviewing the quality of local ground waters relative to their suitability for irrigation purposes, they fall within Class 2 and Class 3. These waters would be considered generally injurious to unsatisfactory for most plants because of their high specific electrical conductance and high overall ' salinity. A number of chemical constituents were analyzed during the study to serve as an aid in interpreting ' origin of ground waters in the Bluffs area. Specific parameters including alkalinity, chloride, sulfate, nitrate, phosphate, total organic carbon and MBAS are described in the following paragraphs. 5-i Ground Water Quality METROPOLITAN WATER DISTRICT WATER ANALYSESa) 1976 1977 50/50 Blend Water Colorado River Water Colorado River/State (Diemer Plant) pH 8.1 8.0 EC x 106(b) 740 1120 TDS 456 716 Total HDNS 214 335 Alkalinity 97.5 120 Ca 51.5 83.0 Mg 20.7 31.0 Na 72.5 110.0 K 3.0 4.0 HCO3 117.5 146.0 so 172.5 310.0 C1 69.5 96.0 NO as N 0.6 0.3 F 0.3 0.4 Fe 0.05 0.0 Si.04 8.45 7.8 a) Concentrations in milligrams per litre except where otherwise noted. b)Electrical conductivity in micromhos per centimeter. �1 Ground Water Quality I Alkalinity - Alkalinity, the ability of a solution to neutralize acid (measured in milligrams per litre, mg/1) ranges from 256 to 663 mg/i for ground water samples in the Bluffs study area. This ability is effected by carbonate and bicarbonate ion concentrations in ground water. Areal variation of alkalinity in the Bluffs suggests a possible relationship with Tertiary bedrock material. Where the Capistrano Formation underlies the terrace materials, the associated ground water alkalinity is generally higher than for water associated with the Niguel Formation. Chloride - Chloride ion concentration in ground water is often derived from bedrock materials of marine origin, such as the Monterey, Capistrano, and Niguel Formations. Chloride concentrations within the area range from 200 mg/I in Boring P-2, to 796 mg/I in the northernmost spring. Areal variation is similar to the variation noted for specific electrical conductivity. As ground waters move through the area, chloride concentrations are reduced somewhat beneath the major greenbelt areas, and rise again to the west and southwest. Chloride concentration of irrigation waters ranges from about 70 to 90 mg/l. The reduction in chloride beneath the greenbelt is probably the result of dilution of ground waters by percolating irrigation waters. Sulfate - Like chloride, sulfate in ground water is often associated with bedrock of marine origin. In the study area, sulfate concentrations range from 600 mg/1 in the inflow area (Boring P-11) to 1800 mg/I in the northernmost spring. However, variations within the Bluffs area show little relationship to other parameters. Nitrate - Nitrate concentrations in the 13 samples range from 1.8 to 49.5 mg/1 (as NO3). The domestic and irrigation water supply to the Bluffs ranges from 0.3 to 0.6 mg/l. The marine ' sediments contain very small quantities of nitrate salt for re -solution because sea water normally contains less than I mg/1 of nitrate. Possible sources of nitrate in local ground waters include animal wastes, domestic wastewater, and applied fertilizer. Large quantities of animal waste are not present in the area, and the widespread leakage of sewage appears improbable. In order to further explore the probable origin of observed nitrates, additional analyses for total organic carbon (TOC) and methylene blue active substances (MBAS) were conducted. After a review of the results (following ' paragraphs), it has been inferred that the nitrate concentrations encountered have in fact resulted from use of nitrate fertilizers which are applied semi-annually in the Bluffs. I Total Phosphorous - Total phosphorous values in the ground waters sampled are quite low, ranging from less than 0.01 to about 0.20 mg/I. Domestic water supply averages about I mg/l, while local domestic sewage probably ranges from about 7 to 20 mg/l. The low observed phosphorous values are probably the result of the adsorption of phosphate by iron oxide, or precipitation as calcium phosphate. Thus the principal quantities of phosphorous, from whatever source, remain primarily above the zone of saturation and are not seen in the analyses of ground water samples. Total Organic Carbon (TOC) - The primary drinking water standards of the U.S. Environmental Protection Agency which were developed in the early 1970's, contain maximum contaminant levels for organic chemical content. As a result of isolated occurrences of individual organic toxicants in water supplies around the United States, the determination of total organic carbon (TOC) content has recently been made for an increasing number of water samples. These new analytical methods also appear to be locally useful in the evaluation of various origins of ground waters under controlled conditions. Most ground waters sampled in the United States exhibit TOC concentrations 5-3 Ground Water Quality I of less than 2 mg/la). For example, ground water samples taken near Fresno have exhibited TOC levels from 0.05 to 0.20 mg/l, while samples from Inglewood rose to levels only as high as 2 mg/1. Surface water samples from 62 U.S. sources ranged from 1 to 20 and averaged about 3.5 mg/1 TOC. ' Water from the Colorado River Aqueduct has exhibited concentrations of 2.9 mg/1. On the other hand, untreated domestic wastewaters range in total organic carbon content from 50 to as high as 1000 mg/l. Because of the relatively high nitrate values in ground waters of the Bluffs, primary sewage flow might be considered as a partial source of those waters. However, a review of the low TOC values, which range from 2.77 to 8.78 and average 4.42, indicates that sewage flows do not, in fact, make up any significant portion of the ground water supply. The apparent absence of any significant quantities of wastewater in local ground water was further verified by four determinations for methylene blue active substance (MBAS). This analytical method is used to detect the presence of synthetic detergents containing surface-active agents or "surfactants". The most common of these is the biodegradable Linear Alkylate Sulfonate or LAS. Based upon Montgomery's laboratory wastewater analyses, raw domestic sewage effluents usually contain 5 to 15 mg/1 of MBAS. Review of analytical values from samples at Sites S-1, 3, 4, and P-8 indicate that only trace concentrates of MBAS occurred in those samples. L I rn J ' a)Symons, J.M. et al, National Organic Reconnaissance Survey for Halogenated Organics. Jour. Am. Water Works Assoc. (11) 634, 1975. I 5-4 I D 1 I I I H I I CHAPTER JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. I CHAPTER 6 GEOLOGIC HAZARDS AND REMEDIAL MEASURES This section of the report discusses those potential geologic hazards which may be associated with high ground water levels in the Bluffs area. Various remedial measures which could be undertaken to partially mitigate, correct or control these conditions are also described. GEOLOGIC HAZARDS Because of local geologic conditions in the Bluffs area, the build-up of subsurface waters and resultant high ground water levels have created a number of present problems and also a number of potential geologic hazards. Various existing problems include: - Slope creep of sediments adjacent to cliff edges; Sluffing of cliff face; ' - Landsliding and failure of surficiai sediments adjacent to bluffs; Rising water; - Erosion; _ Piping within saturated sediments; Rupturing and failure of drainage pipes along base of cliffs; - Seepage through foundation slabs and retaining walls, and; - Reduced stability of a municipal sewer line cause by slope creep and sluffing. In addition to these existing problems, several potential geologic hazards should be mentioned. These include: - Foundation damage due to hydrostatic uplift; - Hydrocompaction; Deep slips and loss of residential structures along bluffs, and; - Liquifaction of saturated sediments during high intensity ground shaking. The possibility of liquifaction was discussed during the study and is listed above as a potential geologic hazard. However, after inspection of the Terrace material samples and review of laboratory test results, it appears unlikely and improbable that liquifaction would actually occur in these sediments because of their relative high density valuesa). Additionally, the possibility of liquifaction a%Personal communication with Mr. Roy A. Hoffman, Chief Geologist, Converse Davis Dixon Associates, Inc. ' 6-1 I 1 1 I Geologic Hazards and Remedial Measures in the Tertiary sediments appears similarly unlikely because they are generally denser and more compact than the Terrace materials. REMEDIAL MEASURES As discussed earlier, Bluffs area ground water originates primarily as subsurface inflow from tributary drainage to the east, and secondarily from excess irrigation in the greenbelt and ground cover areas within the Bluffs. This water moves through both Terrace materials and Tertiary sediments and flows in a southwesterly direction across the study area. Where Terrace materials cap the Tertiary sediments, water levels are generally several feet above the Terrace/bedrock contact (May 1978 water levels). In the eastern and central portions of the study area, where Terrace materials are thickest, the water levels range from 11 to 20 feet below ground surface and do not result in any local seepage problems. To the west, however, where the Terrace materials thin and pinch out as a result of grading, water levels intersect the ground surface, producing localized seeps and wetted areas. In addition to seeps near the Terrace/bedrock contacts, seepage issues from the Tertiary materials along the base of the bluffs. Plate III shows several areas which are reported to have experienced seepage problems at various times in the pastb). In order to minimize ground water seepage problems, ground water levels in the Terraces and Tertiary sediments must be lowered. Methods which could achieve this goal include: 1) reducing subsurface inflow and lowering direct recharge, and 2) constructing drainage systems that would remove ground water from storage. The first alternative, to reduce inflow, would be somewhat difficult to implement because the area east of the Bluffs is composed of single family residences with no controlled irrigation practices. As a result, lawns and planted areas are watered at the homeowner's discretion. In the Bluffs area, it may be possible to reduce the excess irrigation. However, recent water meter records suggest that this potential reduction would be minor in comparison to total ground water inflow. Because of the difficulty involved in significantly reducing recharge and inflow, it is apparent that some form of drainage will be required to reduce ground water levels in the Bluffs area. Several methods of ground water drainage were considered for the unique conditions in the Bluffs. These included surface drainage channels, well points, collector wells, french drains, and gravity subdrains. The following sections describes the more effective drainage schemes. DRAINAGE SYSTEM DESIGN To control ground water seepage, drainage systems have been evaluated for existing problem areas, and also for the overall reduction of subsurface flow into the study area. Preliminary design criteria have been prepared for four general areas where remedial measures could be implemented. The remedial measures listed below are presented in order of their relative suitability or rank from high to low. b)Personal communication with Mr. James Evans, City of Newport Beach. G&j Geologic Hazards and Remedial Measures 1. Drainage systems for residential areas; ' 2. Drainage systems for the main greenbelt area; ' 3. Drainage systems for the peripheral greenbelt and sewer line, and; 4. Dfainage systems along Eastbluff Drive. ' Specific items discussed in the following paragraphs include the ground water related problem in each area, the preliminary design considerations, and the basis for ranking of the individual drainage systems. The priority ratings are intended for general comparison purposes only. Ratings were determined from evaluation of various factors including the apparent or probable relative effectiveness and relative immediacy of effect, the relative degree of community disruption and the relative magnitude of cost. The evaluation of remedial measures and priority rankings reflect the current level of understanding developed within the general scope of this study. Additional study and detailed exploration will permit further refinement of these measures. Drainage System for Residential Areas Areas of recurring seepage have been reported along Vista Grande, Vista Entrada, Vista Del Oro near Vista Cajon, and Vista Caudal (Plate III). Since 1965, small localized drainage systems have been installed in as many as 24 locations within the Bluffsc). These drains were designed primarily ' to remove subsurface water from behind and beneath existing foundation structures. Where the drains have proved to be inadequate, new subdrains could be installed to lower water levels throughout the entire affected area. Gravity subdrains, excavated into the Tertiary Deposits, would be located along streets or greenbelts, and would vary in length from 200 to 500 feet. The drains would consist of 6-inch diameter PVC perforated pipe installed at the base of an excavated trench and backfilled with filter gravel. The drains would flow by gravity to a collection sump. The sump would then be connected to the storm drain system. If pumping were required, a submersible pump activated by level controls would be installed within each sump. The entire installation would be completed below ground surface and would have no physical or visual impact on local residents after completion. In order to determine the number of units, the exact location, and the length and depth of each residential drainage system, a program of exploratory drilling would be required. The general plan for residential drainage systems are ranked as high in relative priority to other remedial measures on the basis of high probable effectiveness and immediacy of effect, intermediate levels of disruption to local residents and, relatively low to intermediate construction cost. ' Drainage Systems for Main Greenbelt Areas Water level contours along greenbelts and springs adjacent to the bluffs indicate that considerable ground water flow is occurring beneath the major greenbelts and Eastbluff Park area. To reduce I °)Personal communication from Mr. James Dooley, Holstein Industries. 6-3 Geologic Hazards and Remedial Measures spring flows and lower saturated conditions along the bluffs, surface and subsurface flows beneath these greenbelts should be intercepted upstream from the bluffs. To accomplish this, concrete lined drainage channels, designed to be aesthetically pleasing, could be installed down the center of each greenbelt. The drains should be approximately six feet wide and should discharge to existing storm 1 drains or to newly constructed closed drains which discharge to Upper Newport Bay. To intercept subsurface flows, a subdrain could be constructed across the lower reach of each of the ' four greenbelts. Trenches would be excavated across the width of the greenbelts to approximately 15 feet below ground surface, and a 6-inch PVC perforated drain pipe installed and gravel backfilled. These new subdrains would discharge by grav_ity_to the bay. Because the drains would be constructed below ground surface, the aesthetic setting of the greenbelts would not be impaired. The undeveloped area downstream from Eastbluff Park is currently drained by unlined channels and contains several ponds which retard surface runoff. As a result, surface drainage from Eastbluff Park and the northern. greenbelt may percolate into the sediments adjacent to the bluffs. To improve surface drainage through this undeveloped area, ponding should be prevented, and concrete lined ' drainage channels should be installed. These channels would be constructed to carry runoff to Upper Newport Bay. ' The general plan for surface and subsurface drainage within the main greenbelts has a ranking of intermediate to high in relative priority to other remedial measures. This rating is based on factors including high probable effectiveness and immediacy of effect, intermediate levels of disruption to ' local residents, and relatively low to intermediate construction cost. Drainage System for Peripheral Greenbelt and Sewer Line Seepage, saturation and erosion along the bluff edges have caused several localized slope failures. These may ultimately result in failure of the municipal sewer line. One of the principal factors influencing slope failure along the bluff edge is surface and subsurface drainage. Several methods have been considered to improve drainage and lessen these effects. Individual measures include: 1. Installation of Surface Drains with Increased Capacity. Existing surface drains along the peripheral greenbelts appear to be inadequate to handle ' surface runoff during periods of intense precipitation. These flows could be controlled to a greater degree by installing a buried 12-inch diameter drain line, connected with closely spaced drop inlets. The pipe would be placed along the trough of the peripheral greenbelt. ' These drains would discharge to existing or newly constructed storm drains. 2. Installation of Impervious Apron on Greenbelt. Another alternative would be to channel surface runoff away from the bluff edge and prevent precolation into the sediments, through the construction of an impermeable apron along the inside edge of the greenbelt. The apron would include a central gutter ' which would channel runoff to the storm drains. A dual purpose design as an impervious I 6-4 I r� L I 1 I E P Geologic Hazards and Remedial Measures apron and a pedestrian/bicycle trail could increase the aesthetic acceptability of such a channel. Larger Diameter Vertical Drains This alternative would consist of constructing large -diameter vertical drill holes in localized areas where water related slope instability problems are particularly severe. The borings would be spaced on 10 to 15 foot centers; they would be drilled from 40 to 60 feet deep and gravel backfilled to near ground surface. Small diameter inclined bore holes extending from the base of the bluffs and intersecting the vertical borings, would be drilled and installed to drain the gravelfilled holes to Upper Newport Bay. Prior to design of this alternative, detailed exploratory drilling would be needed to determine the applicability, spacing, depth and number of drains required for each specific problem area. It should be noted that recent erosion and slumping at several locations along the cliff edge may affect the structural stability of the municipal sewer line. While any of the above mentioned remedial measures will reduce future erosion and slumping, it appears probable that the sewer line will require local realignment in any event, because of its proximity to the present cliff edge. The alternative plans for surface and subsurface drainage along the peripheral greenbelt and sewer line are ranked as intermediate in relative priority to other remedial measures. This rating is based on factors including an apparent intermediate level of effectiveness and immediacy of effect, intermediate amount of disruption to local residents and, intermediate construction cost. Drainage System Along Eastbluff Drive As described previously in this report, in order to reduce ground water underflow originating from tributary drainage adjacent to the Bluffs, a gravity subdrain system along Eastbluff Drive should be considered. Construction would require excavation of a trench approximately 2600 feet long, extending along Eastbluff Drive between Mar Vista Drive and Vista Del Sol. The trench would be excavated through the Terrace materials and approximately 3 feet into the Tertiary deposits. In order to complete the trench to that depth in saturated materials, it is probable that dewatering would be required during excavation. After excavation of the trench, a 6-inch PVC pipe, perforated on the bottom, would be installed and backfilled with gravel filter materials to about five feet below ground surface. The drains would be connected to centrally located sumps spaced at approximately 1000 foot intervals. The sumps would be equipped with submersible pumps which would discharge to the existing storm drains. Design of this system would require detailed exploratory drilling to determine exact drain location, depth requirements, sump spacing and maximum discharge characteristics. The general plan for a drainage system along Eastbluff Drive is ranked as intermediate to low in relative priority to other remedial measures. This rating is based on factors including an apparent high level of effectiveness but delayed period of effect, a high level of disruption to local residents and a high construction cost. 1 6-5 I 1 1 I 1 I CHAPTER 7 ' FINDINGS, CONCLUSIONS AND RECOMMENDATIONS The findings, conclusions and recommendations which have been developed during the investigation described in this report are summarized in the following paragraphs. Also included is a brief discussion of the limitations of the study as authorized by the City of Newport Beach. The Bluffs Area Ground Water Study is the first major attempt to define the origin, occurrence and movement of ground water in the study area. As an initial effort, much new information has been developed, leading to a basic understanding of the ground water regimen. This information will serve to establish "base -line" conditions on ground water levels and mineral quality. However, ' insufficient time was available after completion of the piezometers to measure either water level or water quality fluctuations. Relative to the details on remedial measures, Montgomery's work was limited by the funds budgeted for subsurface exploration, and by the level of effort defined in the Scope of Work. FINDINGS AND CONCLUSIONS ' A summary of findings and conclusions which were derived from our field and office studies are outlined as follows: 1. The Bluffs study area is located primarily on Quaternary Terrace materials which have been deposited upon a wave cut bench lying about 100 feet above the present sea level. 2. The Quaternary Terrace materials, which rest unconformably on Tertiary sedimentary units, increase to at least 30 feet in thickness in the direction of Eastbluff Drive and Vista Del Oro. The Terrace materials generally consist of fine to medium grained sand with locally silty horizons. 3. Tertiary sedimentary (bedrock) units include the Upper Miocene Monterey Formation, Upper Miocene -Lower Pliocene Capistrano Formation, and the Pliocene Niguel ' Formation. These sediments consist of claystones, siliceous shales, thin bedded to massive siltstones, fine grained silty sandstones and concretionary conglomerates deposited in shallow to deep marine depositional environments. ' 4. The Pelican Hills Fault is assumed to extend beneath the eastern portion of the study area, cutting only the Tertiary sediments. 1 5. Local water supplies, delivered from San Joaquin and Big Canyon Reservoirs, are used to irrigate approximately 147 acres of greenbelt and shrub areas in and adjacent to the study area. ' 7-1 1 ' Findings, Conclusions and Recommendations 6. Average annual water application together with annual precipitation has exceeded the estimated consumptive use requirement for vegetation during most years since 1970. The irrigated area within the Bluffs Homeowner's Association (approximately 94 acres) has been consistently over -irrigated. A portion of this applied water has percolated to the ' ground water table. 7. Ground water within the study area occurs in both the Quaternary Terrace materials and ' Tertiary sediments. The Terrace materials exhibit a moderately high permeability, while the Tertiary sediments are of generally lower permeability. Water transmission characteristics of the Tertiary sediments reflect both primary and secondary (fracture) ' permeability. 8. Although the ground water body in the Bluffs area is locally recharged by the percolation ' of excess irrigation water (up to an average of 50 acre-feet per year, 1970-1978), the major source of ground water is subsurface inflow from tributary areas to the east. That supply is estimated to be approximately 200 acre-feet per year. 9. Ground water levels, as measured in piezometer wells constructed for this project, ranged from approximately 88 to 106 feet above sea level (May 16, 1978). Depth to ground water in those wells ranged from 2.0 to 19.5 feet below ground surface. The general ' direction of ground water movement is westerly to southwesterly toward Upper Newport Bay and Big Canyon. ' 10. Ground waters passing beneath the Bluffs are ultimately disposed of as surface seepage in residential areas, and as spring flow and seepage in the perennially wetted areas along the ' bluff edge. 11. Ground water occurring beneath the Bluffs is generally of degraded mineral quality. The observed high salinity is derived primarily from the re -solution of salts in the marine deposits through which the waters pass. Relative to their suitability for irrigation purposes, the ground waters are classed as Type 2 and 3, and are injurious to unsatisfactory for most crops. Advanced analytical determinations indicate that domestic sewage does not comprise any significant portion of the ground waters sampled. ' 12. Potential geologic hazards associated with high ground water levels include foundation damage due to hydrostatic uplift, hydrocompaction of sediments, instability of slopes, and the potential loss of residential structures along the bluffs. ' 13. Although liquifaction is considered as a potential geologic hazard, it appears unlikely and improbable that liquifaction would actually occur in either the Terrace materials or the Tertiary sediments because of their relative high density values. 14. Specific problems associated with high ground water levels in the Bluffs area include erosion, piping within saturated sediments, seepage, ground water buildup behind foundations and retaining walls, slope creep, Bluffing and localized slumping along cliffs, damage to drainage systems along Backbay Drive, and a localized threat to the municipal sewer line along the cliff edge. 7-2 ' Findings, Conclusions and Recommendations ' RECOMMENDATIONS In consideration of the findings and conclusions developed during these studies, the following recommendations are made: ' 1. All project exploration borings have been completed with piezometer casings and surface enclosures. It is recommended that these piezometer wells be dedicated and maintained as ' a ground water monitoring network in the Bluffs. 2. In order to observe and monitor ground water level and quality fluctuations, it is recommended that a data gathering program be implemented immediately. Water level measurements should be made each month at the piezometer network, and water samples should be collected semi-annually for partial mineral analysis. ' 3. It is recommended that the Bluffs Homeowner's Association retain an Agricultural/Irrigation consultant specialist to analyze alternative patterns of irrigation and rates of application in order to minimize periodically excessive water application within the study area. 4. To reduce existing ground water related problems and control future ground water levels, it is recommended that a number of remedial drainage systems be considered for the Bluffs area. Preliminary design criteria, as detailed in this report, have been prepared for four general areas where remedial measures could be implemented. The remedial measures recommended for consideration have been ranked in order of their suitability or relative priority. Relative ranking of suitability was based on system effectiveness, potential for ' disruption and magnitude of cost, and is as follows from highest to lowest rank; a. Drainage systems for residential areas; ' b. Drainage systems for main greenbelt areas: c. Drainage systems for peripheral greenbelt and sewer line, and; d. Drainage system along Eastbluff Drive. ' S. The evaluation of remedial measures and priority rankings reflect the current level of understanding developed within the general scope of this study. Further refinement, cost 1 comparision and final design will require additional study and detailed subsurface exploration. It is therefore recommended that a detailed exploration program and design study be undertaken to develop site specific plans for the completion of cost effective drainage networks, based on the systems outlined in this report. I 7-3 II 7j 1 ' References Barrows, Allan G., 1974, A review of the Geology and Earthquake History of the Newport -Inglewood Structural Zone, Southern California: California Division of Mines and Geology Special Report 114. ' Cleveland, George B., 1975, Landsliding in Marine Terrace Terrain, California: California Division of Mines and Geology, Special Report 119. ' Drinking Water Standards, 1962, U.S. Department of Health, Education and Welfare, Public Health Service. 1 1 II Evans, Goffman and McCormick, April 26, 1976, Geotechnical Evaluation of Tracts No. 8681 and 8682, Eastbluff Area, Newport Beach, Job No. 76-09. Evans, Goffman and McCormick, November 11, 1976, Letter to Holstein Industries. Farris, J.G., Knowles, D.B., Brown, R.H., and Stallman, R.W., 1962, Theory of Aquifer Tests: U.S. Geologic Survey Water Supply Paper 1536-E. Fox, Robert C., September 4, 1976, Review of Evans, Goffman, McCormick Report. Frey, H.W., Hein, R.F., Spriull, J.L., 1970, The Natural Resources of Upper Newport Bay and Recommendations Concerning the Bay's Development: California Department of Fish and Game. Hem, John D., 1959, Study and Interpretation of the Chemical Characteristics of Natural Water: U.S. Geological Survey Water Supply Paper 1473. Kavanaugh, Michael C., 1978, Modified Coagulation for Improved Removal of Trihalomethane Precursors: Oraganics in Domestic Water Supplies, American Water Works Association. Lockwood and Associates, Consulting Geologists and Engineers, Soils and Engineering Geologic Reports: November 30, 1963, Engineering Geologic Report for Eastbluff Tract, Project No. 3312. December 9, 1963, Supplementary Engineering Geologic Report, Eastbluff Tract, Project No. 64-011. December 10, 1963, Report of Foundation Investigation for Eastbluff Tract, File No. 63-1638A. Logan, J.F., 1964, Estimating Transmissibility from Routine Production Tests of Water Wells: Ground Water Journal, National Water Well Association 2:35. Mann, John F., June 1, 1976, Tract 7166 Seepage Problem. 1 RN I F I I 1 I II References Maurseth and Howe, Consulting Foundation Engineers, Soils and Foundation Reports: April 19, 1965, Preliminary Soils Investigation for Tract No. 5877, The Bluffs Development, File No. 65.3432-0.6. July 13, 1965, Soils Report for Tract No. 5435, Lot 113, File No. 64-1638-C. September 8, 1965, Special Investigation Report for Tract No. 5435, The Bluffs Development, File No. 65.1638-S. September 17, 1965, Special Investigation Report for Tract No. 5435, The Bluffs Development, File No. 65-1638-S. November 16, 1965, Reference: Tract No. 5435, The Bluffs Development, File No. 65.1638-S. May 9, 1966, Reference: Tract No. 5877 and 6227, The Bluffs Development, File No. 66-3432-C. June 5, 1966, Special Investigation Report for Tract No. 5877, The Bluffs Development, File No. 66-3432-C. June 20, 1966, Special Investigation Report for Tract 5877 and 6227, The Bluffs Development, File No. 66-3432-C. Maurseth, Howe, Lockwood and Associates, Foundation Engineers and Geologists, Foundation Investigation Reports: September 6, 1966, Report of Foundation Investigation for East Bluff Elementary School, Project No. 3820-F. September 12, 1966, Preliminary Soils Investigation for Tract No.6230, The Bluffs Development, Project No. 3816-F. July 24, 1967, Reference: Tract No. 5741, The Bluffs Development, Project 4138-S. July 31, 1967, Reference: Tract No. 5878, The Bluffs Development, Project No. 3810-S. August 2, 1967, Reference: Tract No. 5878, The Bluffs Development, Project No. 3810-S. September 8, 1967, Reference: Tract No. 5878, The Bluffs Development, Project No. 3810-S. March 21, 1968, Reference: Tract 6230, The Bluffs Development, Project No. 3816-C. June 5, 1969, Reference: Unit 37, Tract 5877, The Bluffs Development. LW I IJ 1 I 1 References June 9, 1969, Report of Soils and Foundation Investigation for Northbluff Sewage Line and Pump Station, Project No. 4631-F. June 25, 1969, Report of Soils Investigation for Northbluffs, Project No. 4800-G. July 30, 1969, Northbluff Sewage Line and Pump Station, Backbay Drive, Project 4631-F. January 13, 1970, Report of Investigation for Unit No. 28, Tract 5798, Project No. 5309-S. December 2, 1971, Report of Investigations for Residential Building Unit No. 34, Tract No. 6230, The Bluffs Development, Project No. 3816-5. McKee, Jack E. and Wolf, Harold W., 1963, Water Quality Criteria: The Resources Agency of California, State Water Quality Control Board, Publication No. 3A. Miller, Russell V. and Tan, Siang S., 1976, Geology and Engineering Geologic Aspects of the South Half Tustin Quadrangle, Orange County, California: California Division of Mines and Geology Special Report 126. Monroe, L.E., 1976, Annual Report Appendix for the Fiscal Year 1975-1976, The Metropolitan Water District of Southern California. Morton, P.K., Miller, R.V., Fife, D.L., 1973, Preliminary Geo-Environmental Maps of Orange County, California: California Division of Mines and Geology Preliminary Report 15. Pacific Soils Engineering, Inc., June 27, 1977, Soils Engineering Investigation and Limited Seismicity Study, St. Mark Presbyterian Church Site. Porter, O'Brien, & Armstrong Consulting Engineers, November 18, 1963, Eastbluff Apartment Development, Preliminary Investigation. Porter, O'Brien & Armstrong Consulting Engineers, April 22, 1964, Suggested Modifications and Additions to Grading Plan and Grading Specifications, Tract No. 5425, Newport Beach, California. Porter, O'Brien & Armstrong Consulting Engineers, September 21, 1964, Bearing Capacity Analyses, Eastbluff Apartments, Tract 5425, Newport Beach, California. Soils International Consulting Foundation Engineers and Geologists, March 21, 1975, Soils Investigation for Portion of Tract No. 5435, Project No. S-0097-F. Symons, J.M. et al, 1975, National Organic Reconnaissance Survey for Halogenated Organics, Jour. Am. Water Works Association (11) 634. H A-3 I 1 I I � I APPENDIX 1 I 1 JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. I. I I I I I IJ I I I i I I APPENDIX B BORING LOGS The boring logs, lithologic descriptions and permeability tests included in this Appendix were prepared by Converse Davis Dixon Associates, Inc. M JAMES M. MONTGOMERY 1 S CONSULTING ENGINEERS, INC. Hole No. PASADENA, CALIFORNIA DRILL LOG Client f IMMI Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. f 108' Type of Drill Hollow Stem Auger Begun 10.20 _Finished 11:55 Total Depth 26' Attitude 900 Water Table f 12' Contractor Stang Logged by MEB Field Sample No. I S-1 I IS-2 IS_ DRIVE DRIVE WATER Type Sample. Depth i SAMPLE PERME- DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No, ABILITY very moist TERRACE DEPOSITS fine to medium grained sand, some silt,occ- -• moderately permeable cosional coarse grade sand, medium red - brown, soft to firm, very little mica, in- creasing sand size at 4', with lenses of 4 dark brown micaceous medium grade sand below 5',no silt below 8', predominantly fine grade sand 8 wet very permeable 15-1 fine to medium grainedyery micaceous sand, predominantly fine sand, shell (installed 2" pvc perforated to 19' 1S- -1 satu rated 12 Z fragments, (including gastropod?), with due to caving, up - 5 nonperforated thin layers of silty clay per 21 clay backfill) slightly permeable BEDROCKS, (Capistrano formation) clayey siltstone, occasional medium graine 16 sand, Indistinctly bedded, (laminated to very thinnly bedded to massive locally) with no apparent along soft to moderately hard, moderately frac- oxidation fractures tured(?), medium gray and occasionally yellow -brown 20 24 occasional shell frag- ments (very weathered IS-2 some large biotite End hole at 26' grains 28 • ' JAMES M. MONTGOMERY 2P CONSULTING ENGINEERS, INC. Hole No. PASADENA, CALIFORNIA ' DRILL LOG Client (JMM) Newport Beach Title Bluffs Area G.W. Study Job No. (78-2188-08) Location See Gelogic Map Ground Elea. f 104' Type of Drill Hollow Stem Auger Begun 11 t40 AM —Finished 12t50 PM Total Depth 25' Attitude 90' Water Table 12' Contractor Stang Logged by MEB r L I 11 L I Field Sample No. Type Sample Depth 2P—W-1 Drive Water___ DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS SAMPLE No, PERME— ABILITY very moist FILL gray-btown, silty sand, some clay, and occasional gravel slightly permeable 4 TERRACE DEPOSITS silty fine-grained sand, medium red -brow, soft wet 8 silty fine-grained sand, some medium -grained sand, medium brown, soft to medium dense? very permeable lost sample -too soft material 2P-1 12 2P- 1 medium dense,, sat. 16 "flowing sand" micaceous medium gray -brown, good 2P-1 S. sat. slightly silty, fine-groine sand 20 BEDROCKS SILTSTONE (Capistrano Formation) very clayey, gray -green, red brown, moderately fractured, moderately weathered, occasional very weathered ( installed 2" PVC, to 25' pbrf. to 5' depth upper 5' non-perf. with clay bacpfill) some oxidation along fractures. sat. 24 End hole at 25' 28 I JAit1ES 1N1. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. 3S Client UMM) Newport Beach Title Bluffs Area G W Study Job No. 78-2188-08 Location See Geologic Maw Ground Eley. f 109, Type of Drill Hollow Stem Auger Begun 3:40 . ? M_ Finished 4*35 P.M. Total Depth 31' Attitude 900 Water Table f 141 Contractor Stang Logged by MEB Field Sample No. Type Sample. Depth DEPTH I LOG 3S-1 3S-2 I35-W-1 DRIVE DRIVE WATER l0 4" 1n to Qn J" 4n 9 14 FM. I CLASSIFICATION AND DESCRIPTION stlTERRACE DEPOSITS medium brown, soft to firm, finegrained some silt and medium grade sand 4 very indistinctly bedded, with grain size vari- moist ations, (fine and mediumgrained sand ) & crossbedding evident REMARKS moderately permeabl S . brown to gray brown, sand becoming coarser very permeable 16 wet at 161, mostly mediumgrained sand slightly micaceous, no silt, firm 9.1 super saturated - gray -brown, fine to mediumgrained sand witht ace of silt, soft to firm "flowing" sand at 25' clayey siltstone slightly permeable MPLE PERME- No. ABILITY 3S-1 JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. 3S (CONTINUED) Client (,JMM) Newport Beach Title Bluffs Area G W Study Job No. 78-2188-08 Location See Geoloqic Map Ground Elev. f 109, Type of Drill Hollow Stem Auger Begun 3:40 P.M. Finished 4:35 P.M. Total Depth 31 ' Attitude MEB 900 Water Ta61e f 14Stang g Logged by Field Sample No. Type Sample. Depth DEPTH LOG FM. sat. I I I i1 I I li I i I I 35-1 35-2 35-W-1 DRIVE I DRIV WAT 1 - CLASSIFICATION AND DESCRIPTION BEDROCKS, clay End hole at 31 SAMPLE REMARKS I un LITY JAMES N1. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. 4S Client Bluffs Area G.W. Study Job No. 78-2M-OS ' Location See Geologic MaR Ground Elev. t 10V Type of Drill Hollow Stem Auger Begun 3:40P.M. —Finished 4:35P.M. Total Depth 31 ' Attitude 900 Water Table f 13.5' Contractor Stang Logged by MEB Field Sample No. 1 Type Sample Depth LJ FJ I I iJ I I I i I I I I 45-1 45-2 45-W-1 DRIVE DRIVE WATER 8'311- u o �n a"-3o to 13 I SAMPLE PERME— DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No, ABILITY moist TERRACE DEPOSIT Slightly silty fine-grained sand, medium moderately permeable red -brown, slightly micaceous with pre- dominantly fine grained sand, loose to soft to firm 4 very moist 4 S -1 0038 8 FT/DAY wet 12 wet BEDROCKS (Capistrano formation) impervious 4S- -1 clayey siltstone; laminated to very thinly ? bedded, light gray to medium red -brown, 16 moderately hard, moderately weathered below 18', moderately fractured to oc- casionally very fractured, with occasional light gray sand pockets and along fractures 2a (same oxidized fractures throughout boring in bedrock) 24 satu- rated 28 JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. Hole No. 45 C ONT'D) PASADENA, CALIFORNIA ' DRILL LOG Client (JMM) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. f 101, Type of Drill Hollow Stem Auger Begun 3.40 P.M. Finished 4:35 P.M. Total Depth 31' Attitude 90e ' Water Table Contractor Stang Logged by MEB I I i I� J I 11 Field Sample No. Type Sample Depth 45-1 145-2 45-W-1 DRIVE T a 3"-Q o DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS SAMPLE NO PERME- ABILITY clayey siltstone, medium gray -brown installed 2" pvc to S-2 32 End hole at 31' 27' (lower 81' is perfor- ated, upper 181' is nonperforated) gravel pack 27' depth to 181, clay backfill 181' to 13' depth installed 2" pvc from clay backfill at 13' perforated lower 10' upper 2� nonperfor- ated clay backfill upper 2�' JAMES NI. MONTGONIERY CONSULTING ENGINEERS, INC. PASADENA,CALIFORNLA DRILL LOG Hole No. 5p Client (JMM) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. f 83' Type of Drill Hollow Stem Auger____ Begun 9:05 A.M. _Finished 11: 15 A.M. Total Depth 43' Attitude 900 ' Water Table Contractor Stana Logged by ME8 Field Sample No. Type Sample. Depth 11 DEPTH LOG I FM. In feel moss 4 8 1 ' 16 20 1 2' r21 CLASSIFICATION AND DESCRIPTION FILL silt, sand, and gravel to 3", light brown gray -brown, occasional cobble to 8" BEDROCKS , (niguel formation) S light yellow brown, clean, fine to medium A grained sand, soft. N light to medium brown, and light gray- D brown, fine to medium grained, mainly medium grained sand, medium dense, soft T slightly fractured ? O N E light yellow -brown & brown, no silt I fine to medium grained sand light gray -brown, slightly silty fine- grained sand with occasional medium grained sand occasional very thin clay lenses & silty clay REMARKS moderately perme difficult drilling through gravel & cobbles easy drilling very permeable ? no sample recovery - too soft bedrock tAPLEIPERME- NO. ABILITY 1 JAMESM.b10NTG0INlERY 5P (continued) CONSULTING ENGINEERS, INC. Hole No. PASADENA, CALIFORNIA DRILL LOG Client QMM) Newport Beach Title Bluffs Area G.W. Study Job No. (78-2188-08) ' Location See Geologic Map Ground Elev.f 83' Type of Drill Hollow Stem Auger Begun 9:05 AM _ Finished 11:15 AM Total Depth 43' Attitude 900 ' Water Table Contractor Stang Logged by MEB I I L I �1 I I I I I I I Field Sample No. Type Sample Depth DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS SAMPLE No, PERME- ABILITY moist BEDROCKS easy drilling due SANDSTONE to soft sandstone light gray -brown, slightly silty, fine to medium -grained sand, soft, slightly fractured? with occasional silty clay, gray, 34— moderately hard, lenses, hard thin sandstone layer at 36' 5P-1 0.64 0.27 FT/DAY 38 to very moist hard concretionary layer at 43' very difficult drillin 42 at 43' - refusal. End hole at 43'. No ground water encountered. caved to 40' installed 2" PVC. - lower 11' perf., 46 then 14' non- perf., •11' perf., & upper. 41 non-perf., gravel pack with upper 4' sand backfill. 50 JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. 6P Client �1�wport Beach Title Bluffs Area G W Study Job No. 78-2188-08 Location See Geologic Map Ground EIev. f 109.5' Type of Drill Hollow Stem Auaer Begun 11:35 A.M._Finished 12:45 P.M. Total Depth 36' Attitude 900 Water Table } 26' Contractor Stang Logged by MEll Field Sample No. Type Sample Depth DEPTH LOG FM. moi s 4 very DRIVE DRIVE I 6P-W-1 WATER 15 3"-15 9" 35'3'-35'9" 26' CLASSIFICATION AND DESCRIPTION FILL mixture of clay, silt and sand, firm to med- ium dense, some gravel to 2", light brown to gray -brown Fine grained sand, some silt, medium red brown, soft to firm, occasional shell frag- ments sand becomes coarser at 15', fine grained with some medium grained sand, light brown 16 to medium red -brown medium to coarse grained sand, micaceous, medium dense, occasional fine grained sand 20 wet BEDROCKS (capistrano formation) clayey siltstone, light blue -gray to brown - gray massive- indistinctly bedded, moder- ately fractured soft to moderately hard S REMARKS very little oxidation along fractures some oxidized fractures SAMPLE PERME- 6P-1 1 I I [I I LJ J I I LI I JANIES N1.1•IONTGOMERY CONSULTING ENGINEERS, INC. PASADENA,CALIFORNIA DRILL LOG Hole No. 6P (CONT'D) Client (1MLA) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Eley. f 109.5' Type of Drill Hollow Stem Auger 11.35 A.M. _ Finished 12:45 P.M. Total Depth 36' Attitude 900 Begun Water Table d; 26' Contractor Stang Logged by 'MEB Field Sample No. Type Sample. Depth 6P-1 6P-2 6P-W-1 DRIVE DRIVE WATER DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS SAMPLE No. PERME— ABILITY satu- rated BEDROCKS gray -brown, moderately hard, moderately occasional oxidation fractured, massive with occasional fine along some fractures 3 grained sand clayey siltstone, very clayey occasionally very locally, a few fossils fractured 6P-2 36 installed perforated End hole at 36' 2" pvc to 36' depth, gravel pack, clay and sand, backfill in upper 2' ' )ABIES M. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG I i I I I I Hole No. 7P Client QMM) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. t 116.5' Type of Drill Hollow Stem Auger_ Begun 1:35P.M. _Finished 2:55 P.M. Total Depth 36' Attitude 900 Water Table f 20' Contractor Stang Logged by MEB Field Sample No. Type Sample, Depth 7P-1 I 7P-2 7P-W-1 DRIVE J.DKIVt WATER 15'31,15,q°1 35'4" 45'q" ?0' II SAMPLE PERME— DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No, ABILITY v.m. FILL fine to medium grained sand, some silt very permeable weft medium brown, predominantly fine grade 4 gray, silty sand, fine grained to medium grade, some gravel to IP' 8 satu- rated TERRACE DEPOSITS gray -brown, silty finegrained sand, soft to firm, some mediumgrained sand, very little mica, no clay, predominantly fine grained red brown sand below 13',occasional shell 12 fragments, some crossbedding evident, increasing sand size below 18' 7P-1 0.03 16 FT/DAY �- 7P-W 1 20 medium gray -brown, fine to medium graine sand "flowing" at 23' 24 super sat, satu- BEDROCKS (Capistrano formation) rated clayey siltstone, green -gray and red -brown abundant oxidation moderately hard, very fractured , along fractures and bedding 28 JAMES pl. it10NTGONIERY CONSULTING ENGINEERS, INC. Hole No. 7P (CONTINUED) PASADENA,CALIFORNIA DRILL LOG Client QMM) Newport Beach Title Bluff Area G.W. Study Job No. 78-2188-08 Location SeeGeologic Map Ground Eley. f 116.5' Type of Drill Hollow Stem Auger Begun 1:35 P.M. —Finished 2:55P.M. Total Depth 361 Attitude 900 Water Table t 20' Contractor Stang Logged by MEB Field Sample No. Type Sample Depth 7P-1 7P-2 7P-W-1 DRI DRIVE WATER tYTi t5'o" 1 35'3" 35'9" 1 20' I ' DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION satu- BEDROCKS rated clayey siltstoner indistinctly bedded, some 32 white gray fine grade sand pockets and lenses throughout 1 End hole at 36' k r I I i I i REMARKS very difficult drilling at 30'-31', (hard zone) concretionary layer SAMPLE'PERME- I JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. Hole No. 7P-A PASADENA, CALIFORNIA DRILL LOG Client QMM) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Eley. f 118, Type of Drill Hollow Stem Auger Begun 12:15 P.M. _Finished Total Depth Attitude 900 ' Water Table Contractor Stano Logged by MEB Field Sample No. Type Sample. ' Depth I I I I1 i I I SAMPLE PERME- DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No. ABILITY very moist FILL fine-grained silty medium brown sand very permeable gray -brown, soft fine to medium grained sand, some gravel to 1'j" 4 8 TERRACE DEPOSITS medium red -brown, fine grained to medium wet grained sand.soft to firm,no clay, occasion- al silt, predominantly fine grained. 12 16 20 satu rate 24 slightly permeable BEDROCKS clayey siltstone, (capistrano formation) 28 ' JAMES N1. MONTGOMERY CONSULTING ENGINEERS, INC. HoleNo7P—, (ON71NUED) PASADENA, CALIFORNIA 'I u DRILL LOG Client (JMM) Newport Beach Title Bluffs Area GA Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. f 118' Type of Drill Hollow Stem Auger 12:15P.M. _Finished Total Depth Attitude 900 'Begun MEB Water Table Contractor._ Stang Logged by Field Sample No. set /V Type Sample Depth SAMPLE DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No. PERME- ABILITY ' satu- green -gray and occasional yellow -brown and red -brown, very clayey, moderately 'rated 32 hard, moderately fractured? very difficult drilling at 34' (hard layer) hole caved and filled End hole at 34' at 21' depth installed 16' of pvc 36 perforated on lower portion, and 5' nonperforated on up " per portion, gravel pack to 3' depth and clay backfill upper 3' ' JANIES M. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. '8P Client � JMM) NewporteacTitle Beach Bluffs Area G.W. Study Job No. 78-2188-08 Location See Geologic Map Ground Elev. f 107' Type of Drill Hollow Stem Auger Total D 1:50P.M. 3:20 P.M. 36' Attitude 900 Begun _ Finished Depth ' eb' Water Table f 25 Stang Conlractor Logged Y MEB Field Sample No. Type Sample ' Depth I I I I I I 8P- 1 8P-2 DRIVE 8P-3 DRIVE 8P-4 DRIVE 1 8P- - VAT R 101311- 10'9" 1 19'9"- 20'-3' 20'S"-20'9"I 35'4"-35'10' 25' DEPTH LOG FM. CU very moist TERRACE D fine to r and coal slightly 4 8 12 wet 16 wet 20 BEDROCK SILTST, very fr brown i modera 24 � 28 ' JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. PASADENA, CALIFORNIA DRILL LOG Hole No. •8P (CONVD) Client (lMM) Nem�woort Beach Title Bluffs Area G W Study Job No. 78-2188-08 ' Location See Geologic Map Ground Elev. t 107' Type of Drill 1JOIIOw Stem Auger Begun 1:50P.M. _Finished 3:20 P.M. Total Depth 36' Attitude 900 Water Table f 25' Contractor Stang Logged by MEB J I� I I Field Sample No. Type Sample. Depth ,0,311 101911 3 � 7 1919" 2013" � 20'3" 19 u t DRIVE u - 3 '4 —35 10 W25' SAMPLE PERME- DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS ND, ABILITY upper 4 feet medium installed perforated ' gray, moderately hard 2" pvc to 28' depth, indistinctly bedded to nonperforated to 32 massive below 30' 6' depth with pea gravel pack and clay backfi I I upper 4' 8P-4 36 End hole at 36' ' JAMES M. b10NTG097ERY 9S CONSULTING ENGINEERS, INC. Hole No. PASADENA, CALIFORNIA DRILL LOG Client (JMM) Newport Beach Ttle Bluffs Area G.W. Study Job No. 78-2188-08 Location_$.ee,Geoloaic Mao Ground Elev. t 107' Type of Drill Hollow Stem Auger Begun -AM- _Finished 10:05 Total Depth 26' Attitude 900 Water Table f 18 Contractor Stang Logged by MEB iI J I 11 I I I I Field Sample No. Type Sample. 95-1 95-2 95-W-1 DRIVE DRIVE WATER 5 9"- b 3" 125'3"- 251911117'6" SAMPLE PERME- DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No. ABILITY sl. moist TERRACE DEPOSITS medium brown, silty finegrained sand, occ- very permeable asional medium sand moist medium brown, fine to medium grained sand with occasional silt, loose 4 rock fragments at 41 g avelly silty clay; predominantly clay, 9S-1 some silt, occasional sand, rock fragments to 11 inches, moderately dense BEDROCKS 8 siltstone (niguel formation) very fractured to moderately fractured, medium blue-green to light yellow -brown, upper five feet very weathered, bedding f 100- indistinctly, massive below 12 feet, completely saturated slightly permeable very moist medium gray -yellow -brown 12 occasional oxidized light gray to brown, iron stains in upper fresh, moderately hard, portion water sample caved to 23' wet ( installed 2"pvc- 16 perforated to 23', upper 5 nonperforated satu- gravel pack to 3'. rated v clay backfill upper 9S- 1 3') 20 very moist 24 9S-2 End hole at 26' ' JADIES M. AIONTGONIERY CONSULTING ENGINEERS, INC. Hole No. lop PASADENA, CALIFORNIA ' DRILL LOG Client ' (JMM) Newport Beach Title Bluffs Area G.W. Study Job No. 78-2188-08 ' Location See Geologic Map Ground Eley. t 79' Type of Drill Hollow Stem Auger Begun 11:15 A.M. Finished 11:45 A.M. Total Depth 21 ' Attitude 900 Water Table f 17' Contractor Stang Logged, by MEB' ' Field Sample No. 'Type Sample Depth I 1 I 1 1 DR WATER 20"°_ on'o" 16' DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS SAMPLE No, PERME— ABILITY Dist BEDROCKS o V. SILTSTONE (niguel formation) light gray to Dist 2 feet, light brown to medium gray brown slightly permeable below 4', very weathered to 8', slightly ? weathered below 10', moderately hard, (occasional oxidation indistinctly bedded, very fractured to in upper portion of 4 moderately fractured, alternating light bedrock in fractures) gray and medium gray -brown siltstone. 8 12 wet installed perforated 2" pvc to 21' depth A.C. patch at 2' depth 16 lop- -1 satu- V rated to very moist IOP- 20 End hole at 21' 24 28 ' JAINIES pl. MONTGOMERY 11 P CONSULTING ENGINEERS, INC. Hole No. PASADENA, CALIFORNIA DRILL LOG Client (.IMM) Newport Beach Title Bluffs Area G.W. Study Job No. (78-2188-J8) ' Location See Geologic Map Ground Elev. ? Type of Drill Hollow Stem Au�C er Begun 4:15 PM _Finished 4t40 PM Total Depth 25' Attitude 90e Water Table 12' T Contractor Stang Logged by MEB Field Sample No. 11 P- -1 Sample Water 'Type Depth 11-13. SAMPLE PERME- DEPTH LOG FM. CLASSIFICATION AND DESCRIPTION REMARKS No, ABILITY in feei moist TERRACE DEPOSITS silty fine-grained red -brown sand, soft ' moderately permeable ' 4 very g moist medium -brown, fine to medium -grained sand, occasional silt, soft very permeable ? 11P- -1 12 ' medium brown, pre - wet dominantly medium- grained sand, with occ. sat. ' coarse -grained sand, no 1 sift, slightly red, soft to firm ' BEDROCKS slightly permeable (Capistrano Formation) clayey siltstone, green -gray -brown, ' 2 moderately hard, moderately fractured, installed 2" PVC moderately weathered, , perforated to 24' depth, with upper ' 4' non -pert, gravel pack 3' clay backfill ' 24 End hole at 25' 28 PERMEABILITY TEST PLOTTED BY PROJECT NO 78-2188-08 TEST BY BP DATE 5-19-78 ' PROJECT JMM Newport Beach BORING NO.SP SAMPLE NO. 1 DEPTH 36 to 38 i ' SOIL DESCRIPTION light brown silty sand PREPARED BY ' LOAD INCREMENTS: REMARKS: BEFORE AFTER WEIGHT OF SOIL PLUS TARE, GM. WET 185.3 196.5 IDRY 177.6 177.6 WT. OF MOISTURE, GM. 7.7 18.9 TARE WEIGHT, GM. 44.0 44.0 DRY WT. OF SOIL, GM. 133.6 133.6 MOISTURE CONTENT, %v 5.8 14.1 DRY DENSITY, P.C.F. 1 110.9 ' PERMEABILITY TEST PLOTTED BY 'PROJECT No. 78-2188-08 PROJECT JMM newport Beach BORING NO. AS SAMPLE NO. 1 DEPTH 81-3" to 81-9" ' SOIL DESCRIPTION Brown silty sand ' PREPARED BY I LOADINCREMENTS: RFYAAKS: TEST 8Y DATE 5-17-78 BEFORE AFTER WEIGHT OF SOIL PLUS TARE, GM. WET 186.2 190.4 DRY 168.8 168.8 WT. OF MOISTURE, GM. 17.4 21.6 TARE WEIGHT, GM. 43.1 43.1 DRY WT. OF SOIL, GM. 125.7 125.7 MOISTURE CONTENT, % 1 13.8 17.2 DRY 0£NSITY, P.C.F. 1 104.3 ^ CONVERSE, DAVIS AND ASSOCIATES PERMEABILITY TEST PLOTTED BY PROJECT NO. 78-2188-08 PROJECT JMM Newport Beach BORING No.5PSAMPLE NO. 1 DEPTH 36' to 38' ' SOIL DESCRIPTION Light brown silty sand _ PREPARED BY ' LOAD INCREMENTS: , .v ny BP DATE 5-19-78 WEIGHT OF SOIL TARE, GM. WET2.1PLUS DRY1.5WT. OF MOISTURE, GM. UBEFOREAFTER .6TARE WEIGHT, GM. .3DRY WT. OF SOIL, GM. 3.2MOISTURE CONTENT, To 5.7 6.7 DRY DENSITY, P.C.F. 102.3 ' CONVtXae,-•--- PERMEABILITY TEST PLOTTED BY 'PROJECT No. 78-2188-08 PROJECT .1MM Newport Beach BORING NO.7P SAMPLE NO. I DEPTHI5'-3" to 15'-9" ' SOIL DESCRIPTION rPREPARED BY LOAOINCREMENTS: REMARKS: TEST BY m DATE 5-18-78 BEFORE AFTER WEIGHT OF SOIL PLUS TARE, GM. WET 187.5' 193.9 rDRY 174.1 174.1 WT OF MOISTURE, GM. 13.4 19.8 TARE WEIGHT, GM. 42.3 42.3 DRY WT. OF SOIL, GM. 131.8 131.8 MOISTURE CONTENT, % 1 10.2 1 15.0 DRY DENSITY, P.C.F. 1 109.4 ME Mel m CONVERSE, DAVIS AND ASSOCIATES J j 1 1 1 t APPENDIX C CHEMICAL ANALYSES The following reports are results of analyses conducted ' on samples collected in the Bluffs area. The samples were analyzed by both standard and advanced analytical techniques at the Research Laboratory of James M. Montgomery, Consulting Engineers, Inc. JAMFS M. MODPI'OJMERY CONSULTING ENGINEERS, INC. RESEARCH LABORATORY 555 E. Walnut -St. Pasadena, Ca. 91101 213-796-9141 I Client:CITY OF NEWPORT BEACH Lab Number 780001. Job Number 90.0600 Description:BACK BAY DRIVE Sample volume = 4.00 Liters Sample Received: 1/ 3/78 Completed on 1/16/78 by RZ,LL d * * * STANDARD MINERALS *************************************************************** * CATIONS * MG/L * MEQ/L * ANIONS * MG/L * MEO/L *************************************************************** * * * * * * * * SODIUM * 570.0 * 24.79 * BICARBONATE * 413.3 * 6.78 * * POTASSIUM * 38.3 * 0.98 * CARBONATE * 3.0 * 0.10 * * CALCIUM * 471.0 * 23.50 * HYDROXIDE * 0.0 * 0.00 * * MAGNESIUM * 253.0 * 20.82 * CHLORIDE * 809.0 * 22.82 * * * * * SULFATE * 1960.0 * 40.81 * * * * NITRATE * 0.8 * 0.01 * * * * * * * *************************************************************** *TOT CATIONS* * 70.10 *TOTAL ANIONS * * 70.52 *************************************************************** ********************************************** * SPECIAL ANALYSES * * * PARAMETERS * VALUE * UNITS ********************************************** * * * * i * Silica 21.600 * MG/L * Tot. hardness * 2217.4 * MG/L as CaCO3 * Turbidity * 0.200 * T.U. ' * Color * 9.0 * A.C.U. * Fluoride * 0.490 * MG/L * Total Iron * 0.060 * MG/L * CO2 * 6.1 * MG/L * Manganese * 0.010 * MG/L * pH * 7.950 * Spec. Cond. * 5460.0 * MicroMhos-cm * TDS by Add * 4308.5 * MG/L * Alkalinity * 344.0 * MG/L as Ca003 ********************************************** * LANG. INDEX * 2.26 ********************************************** SUBMITTED BY:-6E -- I-- -A4-R, hnpfennjq, n.%� ' JAMES M. MONTGOMERY COUSULTING ENGINEERS, INC. RESEARCH a4 8GRY 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 ' Client:CITY OF NEWPORT BEACH Lab Number 780415. Job Number 40.0600 Description:NO.1 ' Sample volume = 2.00 Liters Sample Received: 2/21/78 Completed on 2/28/78 by RZ ********************************************** * * SPECIAL ANALYSES * ********************************************** * PARAMETERS * VALUE * UNITS ********************************************** * * pH * 7.900 * Units * Specific Cond * 7490.000 * Microtihos-an * Alkalinity * 330.100 * MG/L * Chloride * 1560.000 * MG/L * Sulfate * 2180.000 * MG/L * NO3-N * 4.150 * MG/L as N * Tot. Phosphor * 0.010 * MG/L Client:CITY OF NEWPORT BEACH Lab Number 780416. Job Number 40.0600 Description:NO. 2 Sample volume = 2.00 Liters Sample Received: 2/21/78 Completed on 2/28/78 by RZ ********************************************** * * SPECIAL ANALYSES * ********************************************** ' * PARAMETERS * VALUE * UNITS ********************************************** * * * * ' * pH * 7.750 * Units * Specific Cond * 9470.000 * MicroMhos-cm * Alkalinity * 501.000 * MG/L * Chloride * 2137.00E * MG/L * Sulfate * 2120.000 * MG/L * NO3-N * 5.70E * MG/L as N * Tot. Phosphor * 0.020 * MG/L SUBMITTED BY ff� R Zehnpfenni , Ph. c JAMFS M. MCNTC-0MERY CONSULTING ENGINEERS, INC. RESEARCH LABORATORY ' 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 Client:CITY OF NEWPORT BEACH Lab Number 780417. Job Number 40.0600 Description: NO. 3 Sample volume = 2.00 Liters Sample Received: 2/21/78 ' Completed on 2/28/78 by RZ * * * SPECIAL ANALYSES * * ********************************************** * PARA14ETERS * VALUE * UNITS ********************************************** * * * * * pH * 7.600 * Units * Specific Cond * 11120.000 * MicroMhos-an * Alkalinity * 262.700 * MG/L * Chloride * 2777.000 * MG/L * Sulfate * 2760.000 * hJG/L * NO3-N * 11.400 * VIGIL as N * Tot. Phosphor * < 0.010 * MG/L ********************************************** t� Client:CITY OF NEI+]PORT BEACH Lab Number 780418. Job Number 40.0600 Description:NO. 4 ' Sample volume = 2.00 Liters Sample Received: 2/21/78 1 Completed on 2/28/78 by RZ ********************************************** * * * SPECIAL ANALYSES * * ********************************************** * PARA14ETERS * VALUE * UNITS ********************************************** * * * * * pH * 8.200 * Units * Specific Cond * 2685.000 * MicroPunos-cm ' * Alkalinity * 418.000 * MG/L * Chloride * 878.000 * MG/L * Sulfate * 560.000 * MG/L ' * NO3-N * < 0.100 * MG/L as N * Tot. Phosphor * < ' 0.010 * MG/L ********************************************** SUBiriITTED BY./g hP4D7 ehnpfennig ' J.NiES M. MONTGOMERY CONSULTING ENGINEERS, INC. RESEARCH LABORATORY 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 Client: CITY OF NEWPORT BEACH ' Description:NO. 5 Sample volume = 2.00 Liters Sample Received: 2/21/78 Completed on 2/28/78 by RZ II II II II II Lab Number 780419. Job Number 40.0600 ********************************************** * * * SPECIAL ANALYSES * * ********************************************** * PARAMETERS * VALUE * UNITS ********************************************** * * * * * pH * 7.700 * Units * Specific Cond * 5370.000 * MicroMhos-cm * Alkalinity * 422.700 * MG/L * Chloride * 2034.000 * MG/L * Sulfate * 1760.000 * MG/L * NO3-N * 0.750 * MG/L as N * Tot. Phosphor * < 0.010 * MG/L ********************************************** SUBMITTED BY`y&--- =r R. ehnpfenni , Ph. I II u J �J �J 1 I 1 JAMES M. iMITGOMERY CGUSULTING ENGINEERS, INC. RESEARCH LABORATORY 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 Client:City of Newport Beach Description:Turbid water, Site No. 5 Sample volume = 4.00 Liters Sample Taken on 4/24/78 by Jim Goodrich Sample Received: 4/26/78 Completed on 4/29/78 by R. Zehnpfennig Lab Number 78i,647. Job Number 40.0600 ********************************************** * * * CD2(`T BT. 7roA r vCr z * * ********************************************** * PARMETERS * VALUE * UNITS ********************************************** * * * * * pH * 7.400 * Units * Specific Cond * 5290.000 * MicroMnos-cm * Alkalinity * 408.00U * MG/L * Chloride * 795.80u * MG/L * Sulfate * 1800.000 * ivG/L * NO3-N * 0.4J0 * MG/L as N * Tot. Phosphor * O.Z2U * MG/L ********************************************** Client:City of N2wporr Beach . Lab Number 780046. Description:Turbid 'ri,-ter•Site No, 3 Job Number 40.0500 Sample volune = 4.00 Liters Semple Taken on 4/24/78 by Jim Goodrich Sample Receiver]: 4/26/78 Completed on 4/29/78 by R. Zehnpfennig * * * SPECIAL ANALYSES * * ********************************************** * PAMMETEPA * VALUE * UNITS ********************************************** * * * * * PH * 8.300 * Units * Specific Cond * 3360.000 * Micromhos-cm * Alkalinity * 420,720 * i•IG/L * Chlorins * 400.400 * i•^.G/L * Sulfate * 680.000 * NG/L * NO3-N * '5.559 * MG/L as N * Tot. Phosphor * 0.020 * i•IG/L ********************************************** SUB,'dITTED BY: q=ehnfennaci, �' s: DAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena, California 91101 (213) 796-9141 (213) 681-4255 ' Cable Address: Montgomery Pasadena California Telex, 67.5420 ' REPORT OF WATER ANALYSIS Lab No. 78066S-6 Client: NEI4PORT BEACH Job No. 40.0600 ' Description and amount of sample: 2 x 250 ml Slightly turbid water with sediment Date sample taken: 4/25/78 ' Date received: 5/3/78 'Date of analysis: 5/8/78 II II II II 11 Lab No. Date sample taken: ;/8/78 Date received: 5/9/78 Date of analysis: 5/9/78 Sampled by: --- Sample analyzed by: Report No.: Sample Identification Site #3 Site #5 TOC ppm 4.38 4.39 Sampled by: --- Sample analyzed by: R. o. Report No.: Lab No. Sample Identification TOC ppm 780683 #4 6.53' 780684 #8 2.86' 780685 #9 2.77 780686 #10 2.82 Submitted by: Gnu z ' GREGG L. OELKER SCFf P L A N N I N G ... RES E A R C H ... E N V I R ON MEN T A L E N G I N E E R I N G 11 DAMES M. MONTGOMERYr CONSULTING ENGINEERS, INC. 555 East Walnut Street, Pasadena. California 91101/(213) 796-9141/ (213) 681.4255 Cable Address: Montgomery Pasadena California Telex: 67-5420 REPORT OF WATER ANALYSIS 780694- Lab No. 780698 lient: Newport Beach Job No. 40. 0600 description and amount of sample: Turbid Water with Some Sediment ate sample taken: 5-9/12-78 Sampled by: ate received: 5-15-78 Sample analyzed by: go ate of analysis: 5 / 16-17 /78 Report No.: ' Lab # Sample Identification TOC ppm 780694 Boring #1 5/10/78 3. 06 780695 Boring #2 5/12/78 4.60 780696 #3 5/11/78 5.47' 780697 Boring #6 5/9/78 2. 98 780698 Boring #7 5/10/78 8. 78 Submitted by; � t, 4 ,-.i>G(°1�ti, GrU L. Oelker P L A N N I N G ... R E S E A R C H ... E N V I R ON ME N T A L E N G I N E E R I N G I H 11 LI\Yl n.l.\: 1L1�iNL nLJ L[1Al•Il La-C:....'. ...-.a 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 Client:newport beach Lab NLrnber 780683-780699 Job Number 40.0600 Description:clear water Sample Taken on 5-8-78 by kw Sample Rnceiv_d:5-9-78 Completed on 5-25-78 by rz,sr SAMPLE #4 #8 #9 #10 #1 5-10-78 #2 5-12-78 #3 #6 5-9-78 #7 #11 Client: NE[N'PUR'I' BEACH ANALYTICAL RESULTS sulfate nitrate mbas mg/l mg/l mg/l 500.000 1.300 0.VGO 468.000 5.550 0.052 516.000 9.400 312.000 9.400 590.000 11.000 0.032 520.000 5.400 850.000 5.850 0.044 610.000 3.350 560.000 1.650 600.000 5.350 Description:CLEAR WATER Semple Taken on 05-08-78 by KW Semple Received:05-09-78 Completed on 105-25-78 by RZ,SR Lab Number 780683-780699 Job Number 40.0600 ANALYTICAL RESULTS SAMPLE pH E.C. Tot Alk Tot Phos unho mg/l mg/1 #4 7.800 2600.000 461.500 < 0.010 #8 8.600 2260.000 318.600 0.130 49 8.300 2680,000 331.700 < 0.010 4110 8.500 1986.000 353.800 0.040 #1 5/10/78 8.10E 3630.000 341.700 < 0.010 #2 5/12/78 8.100 2440.000 404.000 < 0.010 #3 8.300 -3810.000 530.600 < 0.010 #6 5/9/78 8.700 2600.000 361.800 < 0.010 97 5/10/78 8.300 3370.000 663.300 < 0.010 all 8.100 3160.000 256.300 < 0.010 Submitted By:-=1-a` R. G. Zehnnfenni_,'Ph.D. JNMES M. MCNTGCIMERY CONSULTING ENGINEERS,INC. ENVIRONMEfTrAL RESEARCH LABRCATORY 555 E. Walnut St. Pasadena, Ca. 91101 213-796-9141 Client: NEW -PORT BEACH Lab Number 780683-780699 Job Number 40.0600 Descri.otion:CLEAR WATER Sample Taken on 5-8-78 by JG Sample Received:5-9-78 Completed on 6-1-78 by SCR ANALYTICAL RESULTS SAAMPLE Chlorine • A1G/L #4 258.030 #8 240.13U #9 342.980 #10 209.370 #1 5-10-78 505.050 42 5-12-78 200.180 #3 427.O00 #6 5-9-78 224.060 #7 5-10-78 356.290 #11 392.100 Submitted By:- Stephen Roesch PLATE (,� i�. e ` _✓= /,( h_ / t. ,� _ IS - 9. \,.` iy v a, ` 69 3C� ` \ v' yN P �� Y. 9♦ °j ,Jk ��`✓ r 1 I / \i `� \ 2 • 4 �\ _ Y` - %, N� ' P - _/ \, /(y�(/� ' °�Sg' °1_ r ^ \°� { Gy "/ II �'W ioe�i 1 I BLUFFS AREA I . li � / ^�i ,\ �`\ 11 \\ ' ,\\ e 0 .• _ _ - _ _ ". �_ v>. Eo' O •'� � V, / � 7/��[h I ���y`K\\ _ ,� � `. P j J / / 0 (�-` � •• �5 \/\//I�. -_ --_ _�t• n M1 m- _ °' ♦ P� V o• 1 >\\\\�����"✓✓✓yyy [\\� y � _ i� W a ,._,�� , ; � l �1• '_ � _ a9�•• m n ie ,la "`r �r PE ,- , P 6�� ° 56 � �` x � / � GROUND WATER STUDY tl. 'ti N •,� 150' I (_��'' /� � y16T _._�f� � -� '� �37 r � -5 � � � ' � •m (. ,II � ry \ . - / 34 35 36 � �/ l r-LJ �' ",- i � e- \ .o , 1.0 � / _ bI �} �JJJ��� 4 � 59 I l ' _�Fi��.�- , �. \;a, za •`,\ o ��( PNy� GEOLOGIC M A P _ ,• \ ' .y2 I I _• � � si I s � �eJ I � � 6' ' r 1 . V.. S#' : g3 _. L M1• sc 4 1 . ° �\ - %�31 14 . n ,,, -62 - w- P I - - \ 1 ,v .� \9° •\`Y9' 9 y4..P ai 1 ;U- 1• _ JY..I o i F`' PQ� EXPLANATION I � \ Al +• y a s 's W V sJ. N, � ., \,,\- / I „ \ • L11 . V • a , Y, I9 IB R 16 45 >i Su •• (� ' E lJ I General Location of Remedial o J p 11 Qtm Quaternary Terrace Deposits Measures • \ \6\4 � D3 ', ,fz' '•. pi Residential 8 Greenbelt ♦ ♦2♦♦. � ^A,,,�_ `S�y = J;,� II pE� cc 1 eye , � � Tertiary Niguel Formation Subdroins OQ Tertiary Capistrano Formation Eastbluff Drive Subdrain °° a it I u _ I ' `{, Tertiary Monterey Formation Main Greenbelt Surface ! , REST Tm 5 S�\r' / x�` s rv9. Drains ' .. ♦ 6 / n��e % �� \ \ 1�/` s_at SUMP , \� TPP •\ \'\� _r / zo z zz T e cN ELEµEN •/\2� ��,Vol, v1sA °E� I ��� • • • Approximate Geologic Contact Peripheral Greenbelt Drains p / e N Ii'� too' Fault 1 -j"►��' \I sd�/.r�, -�.`� ` �2 Strike and Dip of Bedding ti, TR. 70 .�y1� j ��'%§ �61 Strike and Dip of •' Qtm Joint //,�`'1�\ \ ♦� .\i�al vPaK , roc' ;�'`` ,' o\✓� J Slump Feature L1C /" -' c NDA '/ .� ., r'a.r-i ol0' m / \ off ue ' ?! O �:.,)....\ / \ A F--�AI Hydrogeologic Cross ' EASTB` ''' ,Y,�e',, '•' ::�: 42 ^ r� _ - =/•--." N .. ./6` \a\ - (, Section /: La / 1 / / 1� •,P-I0� /✓% j3\\�4 ::i�'•• l/g319 N. �C l -m•^J D �ii.• \ / tT , I 1' - _� i'y. 3 24 \ `�},.\ f a • • _ �1• CO rs -.. N Y �, • •°•.. // I \\\ v z=yz, J •��•, '.��/`'/\` -}--- � -^ � � P-II Piezometer Well ) fIl - ;r" '.5 ",.�••�• q'�'✓ I M, c�N.n-1:�^N' /••'/p1 5 J. by ��vni•� r- \ \ \` q�o �i t4; �- - !'a' $-' a ••°-9 tryS-J Injecti on Test Well (with piezometer) a' ., r` b '.-� 6 , �> ihil h �^ j l 1 r n:: m. �s , �(N`'a, StudXIL y undar / ay 1�1�11�1�11� Y r _� �. I .'�°• y` �1../ ' ^�, (r ,� <� 62 h' �`" 7 a0 49. _t,.@� /.♦ r, Ses•e Y / �a.9/ •>` 2. 'h'• - 0 100 200 300 a00 500 Area Bc -�, `\,/ - �5 ///\y°C9,9 SCALE IN FEET >I I C 9 >g �� p�'�--��:pl S7 : 5a^ \� !` • Baaa Yao P-P.Ind er R.ue, B°:n, Fros+ a 4saocS.P+em°v 25,1969 Q > \..�. >/� ^✓ e41 5- - � Ym�r l Qt m/ ':.' ' �JJ� J \.' .Sri.• _. 0j �' �\ `'s ?s -�;`.'/�/J' to< I 6•6. 1L6-6-5t_5� . - ,-.�/f- J�` ` �: I ,3. � - _ ..'[` 9\ , a , Et . -',,.. ma's.C:•.4 � f �� Y p'.f • :�`: SUMP 59 p°g2 P\ vl� DES e � lf�,z , ° tr'•�. '. t I �rf ti'—'3�s -; /� Q �q 'lee r - F .•. PLATE I '. eP z � O/ % O ➢. p'E � H`:< /' I �+ �� � ��' -� N � �LOe"`. • - � 9 SE, •� AF. r c., ,F _ 's. - r-- �6c, \. >- / a5 a bra%y <'! �z • reF _ < :r[:'�. • JAMES M. MONTGOMERY CONSULTING ENGINEERS, INC. o •� - •ry "? 6' `'• '8 a� `\'\ \ 't\ `y♦ !\see % / CG 17802 SKY PARK CIRCLE, IRVINE, CALIFORNIA 92714 n. -f''+/ P-8 '•w.._ "`°' . t% `f: - ,a• i, • "`/' Cs`�' . I � -- �,) , o °, ` /P' ' e< e 'ter _ Q t m� e� �i ± '� Ff' '� 2A •1'° • _ /�� �' <`// / 39 �. \ f j _ � \ • \• _ � °° "'� � \ ` / w / � � a � n. - 11 f e 1 ,IPpP \ \ �°• °' ♦ - $t / J \ .\,�`, '• • Py� " / // \0 Tn C ` • __ _ Ts het _ _ - ,�, 2` � A. •,: Fj � Oa �\ \` ..e @ L0 ` :may � s �. .I / . -fir -'\ ® as v:., •�,\ ,t c 1 + / 20 •�` .tr O �: D`? PT1� �\ \ °";;. 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Tc °a a: , Z v\,� a i / ` ` \ '/ ,tom _' v'♦,/� Qa 4 3 ,. \ �� l - \ /. •C/ / / /' \, M,, '\ x x .`` - ,;♦ • /s,/� Gl9/4� `� r 00 ,56!\ '(Q pC 01 �/✓ \ \ . / '/ / �, a \ �� � Q S P ♦ \ . :» �. Q t m Q Eason w.ux•1Eo LIK \`\ \` a, !l - `\ �� '/// P-2 1, l {)— - '\ I `it, 1 \\�l`•C"_ 11\ `J'\�• •, ' f\I/••: "e. \ +' • illsYO I6 // I I p 1 -__ as \'`s \'\ ,� \\J/ I!II�J II -lll .I Io < ` -� • R/ / a ,..'% .� I, 1 19 PPpap52o aiarcno uEc PEP MAP oP M.P9pp A \•`, \I\n\l,. \ c•• � •"�•:=.: � � A7 • r B, p/fir (/"v•A 9 �� ; • 2 I� I'/ze¢ toss I.pP2a rcwtb9r ssr Eure°.unDar zfi ar6z � �If •'•oa >•--.V1.� \ —7- � � I a _ - }a :6 � - • 1 pyt�� e`r \o \ 4' p'°+ • Q tl l l ♦ ` / „ 1J .'., E 11 2^^2 T\. 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F" � _ � U � �� � ,1 \\ ` \2 / .�x 8 , 03 .31•'9,�,� 1 DE` z �2V 1 - 1 u✓ 008 c, / / \� / 7 \` ►'► ■Lr 5 BEET --a 001- lot Ctk E`EMEI4TP V\STP 'qpoft logo lot lot cl as rt 00 _,- jo J ;� Y / \ \ \lkyl ° yy ' a�( �`` I \ / HACI .r •t too dOp P-10/��L EP5 I�I� 5r61 la ?2 J\ N' ➢ // cr Do I-s .y.rgot a M j � ' a I I- � �-�' It � `� �- i '��- � O l� ' \r . !r+'� � .• _ / � •'` \� \ ,j � � S-9 • - i •`� /' ; g +� ` -<°r%- i 1 mot/ ;. :e / t ,• I S �\, � \ h •�•' (5 yA .f �`f •�.a'.!-.. e9 :ly v: � - / , _ l r. _ \'J/) / .,trlr: -\/ i H ag poi �T x"FS?• Y 9 BLUFFS AREA GROUND WATER STUDY GENERALIZED CONTOUR MAP BEDROCK/TERRACE DEPOSIT CONTACT EXPLANATION ®P-II PIEZOMETER WELL ®S-9 INJECTION TEST WELL (with piezometer) - BORING OF PREVIOUS INVESTIGATION LINES OFEQUAL ELEVATION ON BASE OF TERRACE DEPOSITS (dashed where approximate) APPROXIMATE EDGE OF TERRACE DEPOSITS ®( 14) THICKNESS OF TERRACE DEPOSITS t'1=►!•Im I STUDY AREA* BOUNDARY y / f�.: h� S n•� O \ ` 9 \ - -/ / _\\, 2 q 0 100 200 300 e00 ,00 74 7 73 \(" �6 `) i>.O a r y .` ` KKK< `F2 _ (�- + /� m aIL-0 -� _� / .---I I �C � � �� �, �� -' l52• D �\ N � ��/• �v ' ..'0 �'�2?% � SCALE IN FEET J/ �FI�f V.I't"•', e°.e r°o o.•oaree by Raub, Bet., o.":r a n,..em..; sevreme•r zaasso .4.' .s'\ V ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL, USGS DATUM rl � � 1 . of V -• / �� `' 5 �O .� 6ye --_ V I— Ssr; P �r_ 4 FF `y i l� a `✓ I .... `tiPN,�9vJ noa.� r9FFF �\ as PLATE 11 LSD F t • �- a oq°' \�9}�} e.6• s9 0� �Y 32 3341 goo JAMES M. MONTGOMERY (15) F CONSULTING ENGINEER INC s 17802 SKY PARK CIRCLE, IRVINE, CALIFORNIA 92714 \\6� J r,\\ro,/)j e� •\ 6� _ 5,. <\ .. lam B 4 PP • ® \ \ 'Y>. \ - 0. 0 k" \Y � ./ / .,_% . . \ \ om �-� Y 0 g •(. \ / O a". tL \- w- `�� /\ ••s ;� T• °j x ry \` V S - \� - 'tr'` -95 (P- 5 , ,•, ;y (i7 U Nx \\ \fir{'��( a \. a_- 'P: - :�k¢• 5' �. ui as a;�` \ '^\.\ �� -tto ` l `^ IVY � - �- �_\r_ l' � '.R ,(p9 '3 \ � \\`�\ � _ �// nx �in• (25) I � �^O / 1 -� \tea\\\ p'\\ / �� �.' .tee 7\6`�v 2s 2 \ as. \. �' �� ;� .� ^'' J' ^Q'' ,j2 _ _ p� \ .\ •P� / / /. / W �./ h `6 O- • A." a . `� �\ O ', P i V P-V% I •'„ II e� ��11-��LLJI/� - �?�� .(21)a/ \I\\1 1 a 1� .� � .\ Po � y O6p ••a \` 'I 62\N'' _�\ / /' • nz• \\ ` / 3 'v/ z' 1 �{ . �/ �- pc �/'i� p0 �D .iy •P- ' � /� /�� \ \ \\`� ` ` � - ` �' _ / `yB &% 3i ST i �� �yo a \F \` Ij[''' �J a +' /ter/.�" . 0, , / ��,/�•�/\j 3> -T �x / zZ . ,yo° •-s ® �•• \ .)�.\\�V� - :� i\\ _`_\ \ .•\a 'R� � � �, ',\ e•1z / CORONA DEL MAR HIGH SCHOOL \\• " _ �• \ >•" ^•v \/ ! y , \ /,�,\ - \ ♦ x1133 �W= c �� \ \ R ' a q' , \ \ ` _ �. \ ".. ••• � . `. ` ,/ ••q� \�. . \ yP ♦ �� .� S.460 G _ \ % I■ .Ro S 6,2 0 ;' �-_i�ir---- 95 •\ \ '^ °�\`. 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"3 26 j�f '•�\ :;I \6\� a a e.-�' •• {\ •.\,J� BLUFFS AREA GROUND WATER STUDY GENERALIZED GROUND WATER LEVEL CONTOUR MAP EXPLANATION "A °6 ' °mei / 0 'I/�', 313 PIEZOMETER WELL - - � \ \ •� �- ' S BEET ' I ms• scHp01�®S-9 INJECTION TEST WELL (with piezometer) *O� 10 STUDY AREA BOUNDARY _� 70 •�—wo --- - -- (t, - > \' r \ 85_ LINES OF EQUAL ELEVATION ON THE m l 1 �`,i`we' GROUND WATER SURFACE (MAY 169 1978) HACIENDq GENERAL AREA OF REPORTED GROUND u "e S'�� I , y \ \ �Ir'ry.•�K✓ WATER SEEPAGE (1977-7 %Sol EASTBL FPc:, $ PAGE 8) D toot � -n' " m/''� /' GENERAL DIRECTION OF GROUND WATER FLOW 1 I /� O �' �h • /\ f Y , /-J'� /`'/6 \ �` I Yi0— l rn__In set -•" / �. �;� ice- a aC �,_�,�a-: GENERAL AREA OF SEEPAGE aSPRING FLOW (1977-78) > t � ¢ I `(�L` i' /n - n -/ / u. � t �\ �, i '�� a' m: re -� r •`{�� s9� �'," \ � / f :=i' :'::; vi:,+ i % ! 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