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WQMP_5-12-2017
Conceptual Water QualityManagement Plan (WQMP) Project Name: Gunderson Residence 409 N. Bay Front Newport Beach, CA Prepared for: Mr. Dave Gunderson 1419 Dolphin Terrace Corona Del Mar, CA 92625 Prepared by: Thomas M. Ruiz, P.E. Forkert Engineering & Surveying, Inc. 2~311 Brookhurst S~reet, Ste 203 Huntington Beach, CA 92646 714-963-6793 Prepared on: May 12, 2017 SRQ 5-/(,_yl PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front .. .pfojectOwner's C:e'H:ificatiqra·· ·. . . .· . . . .· .. . ..· Permit/ Application No. Tract/Parcel Map No. Grading Permit No. Coastal Development Permit No. CUP, SUP, and/ or APN (Specify Lot Numbers if Portions of Tract) APN 050 031 02 The WQMP is intended to comply with the requirements of the Municipal Code Section 21.35.050. The undersigned, while it owns the subject property, is responsible for the implementation of the provisions of this plan and will ensure that this plan is amended as appropriate to reflect up-to-date conditions on the site consistent with the current Orange County Drainage Area Management Plan (DAMP) and the intent of the non-point source NPDES Permit for Waste Discharge Requirements for the County of Orange, Orange County Flood Control District and the incorporated Cities of Orange County within the Santa Ana Region. Once the undersigned transfers its interest in the property, its successors-in-interest shall bear the aforementioned responsibility to implement and amend the WQHP. An appropriate number of approved and signed copies of this document shall be available on the subject site in perpetuity. Owner: Mr. Dave Gunderson Title Homeowner Company Homeowner Address 409 N. Bay Front Email " Telephone# .. .. .. .. Signaru.re I Date I Mr. Dave Gunderson Owner's Certification PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Contents Page No. Section I Discretionary Permit(s) and ............................................................. 3 Water Qualicy Conditions •••••...• " ........................................................................... 3 Section II Project Description ......•.... ,uuu ............................................................. 4 II.1 Project Description ............................................................................. 4 II.2 Potential Stormwater Pollutants ....................................................... 5 II.3 Hydrologic Conditions of Concern ..................................................... 6 II.4 Post Development Drainage Characteristics ................................... 7 II.5 Property Ownership/Management ................................................... 7 Section III Site Description •...........•................................................................... 8 III.1 Physical Setting ................................................................................... s III.2 Site Characteristics ............................................................................. s III.3 Watershed Description ....................................................................... 9 Section IV Best Management Practices (BMPs) .............................................. 10 IV. 1 Project Performance Criteria ............................................................ 10 IV.2, Site Design And Drainage Plan ......................................................... 11 IV.3.2 Infiltration BMPs ......................................................................... 12 IV.3.7 Treatment Control BMPs ............................................................ 13 IV.3.9 Structural Source Control BMPs ................................................ 14 Section V Inspection/Maintenance Responsibilicy for BMPs ......................... 15 Section VI Site Plan and Drainage Plan ........................................................... 16 Section VII Educational Materials ....•...•••••••• •••111•• •••••••••••••••••••••••••••••••••••••••• 11 ...... 17 Attachments Attachment A ••••••••••••.•••••••••••••.........•.••••••••••.••••.••••••••••••••••.••••••••• 111 ............. 1111 ••••••• PLOT Plan Attachment B .•• ,u ............................................... u............................ Educational Materials Attachment C ......................................... Reference Exhibits from County of Orange TGD Mr. Dave Gunderson PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section I Discretionary Permit(s) and Water Quality Conditions Provide discretionary permit and water quality information. Project Infomation Permit/ Application No. u-•••••--•u--~, ........ ~ ... •••-•••••-•••••••••--•••·----,., • ..,,..,..,.,nn•n••-••••••• CD2017-018 J Tract/Parcel Map No. _l See Below ••-•••-• ... ......._... ... ,~,.O..O.----••••-·--·----"'--••-•n••--••-•' 0•ou0u•-••----~-•'-•-•---••••••••--•• _____ ,.,...,_..,..,., ________ .., _____ ,.,,.,,._,n,••••••• Additional Information/ LOT 5 OF BLOCK 8, MAP OF RESUBDIVISION OF SECTION ONE, OF BALBOA ISLAND, AS PER MAP RECORDED IN BOOK 6, PAGES 30 OF MISCELLANEOUS MAPS IN THE Comments: OFFICE OF THE COUNTY RECORDER OF SAID COUNTY. Water Quality Conditions Water Quality Concern New residential project located in the California Coastal Zone -75% or more of site's surface will be impervious. Watershed-Based Plan Conditions Provid~ applicable conditions from watershed - based plans including WIHMPs and TMDLS. Mr. Dave Gunderson .. . . No WIHMP has been approved for Newport Bay-Newport Coast watershed. Section I Page 3 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section II Project Description 11.1 Project Description Description of Prop9sed Projec::t ~ Single Family Residence in Coastal Zone with Seventy-Five (75) Percent Development Category ~ Impervious Surface Area. • ••• I lolol I I ......... II II 1111-a I I I I I 11.111111•111•lol-l-l I I I I= al I I I I 611 II Iii II.I I I I I I I I I I I II. I I I lllllllll••••••a1 II II. t ji1 I Ill I a I a-1 a-I I I 11111 I I 111 I 111 I I 11111 lllllllllllllillllllllllllll••••• I 1t1•t1t1!111i11 I I I I I 1111111 . Project Area (ft2): 2,727 ~ Number of Dwelling Units: _1 j SIC Code: 1521 .......................................................................................... _-11-1111••·································································•••11;1-1111••••········· Narrative Project Description: . The project consists of the removal and placement of a new single family residence with an attached garage. ........................... ..... ................... r ....................... p;~i;~~···· .................... ! ...................... i;~;;~i~~~;········· ........... . ~-···············"···············1·····························=······················· ............................................ .. : Area : : Area : : : : : : : Percentage : : Percentage ~ (acres or sq ft) ~ ~ (acres or sq ft) ~ ..................................................... _.~················••itll••··········~·····························: .................................... .c-.............................. . Pre-Project Conditions ~ 0 sf ( 0% j 2,727 sf j 100% ··P~~t~P~·~1·;~i·c;~ait1~~;··· ...... j ........... ;~;·~; ···········r···········7%············1··········:z:s:~4·~i ··········r···········93·r;·········· '"i~::~;~ ................................ r~·~~-;~·;:·;:~~;~'"fli;·:~~·~~:;~~·~i~~~~i;r;~~·~h~·b:~·1:~~·i;;;;·~·~J~;d·;~~ ..... .. Patterns/Connections : alley away from the Bay . Mr. Dave Gunderson . . Section II Page4 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front 11.2 Potential Stormwater Pollutants Determine and list expected stormwater pollutants based on land uses and site activities. . Pollutant Suspended-Solid/ Sediment Nutrients Heavy Metals Pathogens (Bacteria/Virus) Pollutants of Cohcern Circle One: E= Expected to be of concern N = Not Expected to be of concern E E N E . ... Additional Information and Comments . ~•--·-·-·--··-··••••••.,••••••••••-•---~~---•••-•••••••~••-•••••H••••••• .. ••-u•-·-·--...... , ..... ~ ....... .o.,., ••••••• ,_. ······-----,.-,......,.,..,.N,• ••--•-••••••••••••-•u•••u••-••••m••••-·-·-----••-•"'M"'""...._•••~••••••••••••••••••••··-·•••• .. •--••••••---·~-~~---······-N•N•-•,-..-~.,..,..,..M, Pesticides E Oil and Grease .. E .. Toxic Organic Compounds N • ..,...,._W,HH,.,,,--•••-----••-•••-•••••-•••••••••••••..-.,...,H ... H-,--,•-••••H•-•••-•••••• -••••-••·-·---HOHOHOH ••-••••••••-••----.. -";""'-"""''""'H'-"""'•--••--••~•--~••••u•••••••-•u•u••-••--u•~•---~~~~.H•n-d~•n••••n•n••H•••••••••••••••••••••u•••••uHn•••n•~•u••-•••u---•uu•u Trash and Debris Mr. Dave Gunderson E Section II Page 5 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front 11.3 Hydrologic Conditions of Concern Determine if streams located downstream from the project area are determined to be potentially susceptible to hydromodification impacts. Hydrologic Conditions of Concern does not exist. The site is only increasing the impervious surface by 193 sf. This will not increase the runoff volume by more than 5 percent. 2 Year Storm Q=CIA Q = cfs, I= in/hr, A= acres per OCHM l=intensity, in/hr= at(b) per OCHM t=duration = 5 min I= 5.702 x 5(-0.574) = 2.26 in/hr CPre= .9 x 100% = 0.90 CPost= .9 x 93% = 0.84 QPre= 0.84 x 2.26 x .0626 = 0.127 cfs QPost= 0.90 x 2.26 x .0626 = 0.119 cfs Q will decrease by 6. 7% Mr. Dave Gunderson Section II Page 6 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front 11.4 Post Development Drainage Characteristics Describe post development drainage characteristics. The lot is relatively flat and rectangular is shape. The finish floor of the house will be raised in order to be above the flood elevation. The site will be divided up into 3 drainage management areas (DMA) for infiltration. The first DMA will make use oflocalized on-lot infiltration. The area will sheet flow into planter areas and be collected into a drain line. This line will filter through a rock trench before exiting to the back alley. The other two DMA's will also make use oflocalized on-lot infiltration. Most of the runoff will be from the roof of the building. This water will be collected in a drain line as well as the surface water below and be routed to a rock trench in the back next to the alley. These areas will be pre-treated with a filter to treat the unmet infiltration volume. See Plot Plan II.5 Property Ownership/Management The property owner will be responsible for the long term maintenance of the facilities. Mr. Dave Gunderson Section II Page 7 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section Ill Site Description 111.1 Physical Setting Planning Area/ Community Name Location/ Address Land Use Zoning Acreage Predominant Soil Type Balboa Island Improvement Assoc. 409 Bay Front N. Newport Beach, CA Residential Residential 0.0626 Fine to coarse sand and silty sand III.2 Site Characteristics Precipitation Zone Topography Soil Type, Geologtj, and Infiltration Properties Mr. Dave Gunderson 0.65 in/hr The subject property is located on the north side of Balboa Island facing Beacon Bay. The property is located on North Bay Front, just west of Agate Avenue. The lot is bordered on the south by a service alley. On the north is the North Bay Front "boardwalk" with a seawall beyond along the Beacon Bay chaimel. The lot has an approximately skewed rectangular shape. Lot elevations are indicated as approximately 6 to 7 feet (NAVD88). The adjoining properties on the east and west are indicated to be at approximately the same elevation along most of the lot boundaries. The site presently contains a two-story house with attached garage built around 1974. Concrete walkways and tile patios/ decks cover much of the area around the existing house. Per the soils report by R McCarthy Consulting, Inc , the site is underlain by Marine deposits consisting of light brown, gray and gray-brown, fine to coarse sand and silty sand. Section III Pages PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Site Characteristics (continued) Hydrogeologic (Groundwater) Conditions Groundwater was encountered in our test excavation at a depth of approximately 3 feet below grade. Geotechnical Conditions (relevant to infiltration) The site is underlain by Marine deposits consisting oflight brown, gray and gray-brown, fine to coarse sand and silty sand. Off-Site Drainage Utilif:tJ and Infrastructure Information There is no off-site drainage onto the site. No utilities on lot except for service lines. III.3 Watershed Description Receiving Waters Newport Bay ,H ............. _____ Hu-•-••--•-............... , ... ____ ,_,_, __ ,___________ ------·--·---·---.........,.._-.... _~--••••••-•••--~, ........ --,m--••••••-•••--~~ ... ,~->,a, ........ ,m ... •mm,••••-•-•••••-• ............. --,U••--••--HUOUO,m•••-•--•-••·-·- 0 Metals/Metalloids, Pesticides, Pathogens, Metals/Me.t:alloids 303( d) Listed Impairments Applicable TMDLs Pollutants of Concern for the Project Environmentally Sensitive and Special Biological Significant Areas Mr. Dave Gunderson Nutrients, Other Organics, Pesticides, Toxicity, Sediment Pathogens, Nutrients Sediments, Nutrients, Pathogens, Pesticides, Oil & Grease, Trash & Debris The site runoff does not discharge directly to an ESA. Section III Page 9 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Sectio·n IV Best Management Practices (BMPs) IV. 1 Project Performance Criteria Project Performa nee Criteria •-•-••""•-•••--"'"'"'''"''""""...._·~---·-····· ••••••••••••••••• .,.,. '. :""' 00n,Hn,H•n-, ·.•••••••••••••••• · ••' ·--·. : ••••-----• ... •••~• • .o.-••••••-•••••••••••••••••••••••••••••··--••••'' • .,._· •; ,,.,,.· •-•-•--.. n,n· •••-•• _.,,..,· •••••••n•-•••••••-••••~••--••-•••"w ·.,..,,.,_· · ....... ,~ •. ~,,-•••-• -· "'""''"'""'' • • >HM Calculate LID design storm capture volume for Project. List applicable LID performance criteria List applicable treatment control BMP performance criteria) Design Capture Storm 85th percentile, 24 hour V = C x d x Ax 43560 sf/ac x 1/12 in/ft C = runoff coefficient= (0.75 x imp+ 0.15) =0.75 x 0.93 + .15 = 0.85 d = storm depth (inches) =0.65 in Per Fig XVl-1-OC TGD A= tributary area (acres)= 2,727 SF= 0.0626 ac V= 0.85 x .65 x 0.0626 x 43,560 x 1/12 = 125 cf. Project must infiltrate, harvest and use, evapotranspire, or biotreat/biofilter, the 85th percentile, 24-hour storm event (Design Capture Volume). A properly designed bio-treatment system may only be considered if infiltration, harvest and use, and evapotranspiration (ET) cannot be feasibly implemented for the full design capture volume. In this case, infiltration, harvest and use, and ET practices must be implemented to the greatest extent feasible and bio-treatment may be provided for the remaining design capture volume. If treatment control BMPs can treat all of the remaining unmet volume and have a medium to high effectiveness for reducing the primary POCs, the project is considered to be in compliance; a waiver application and participation in an alternative program is not required. Mr. Dave Gunderson WQHP-409 Bay Front.docx Section IV Page 10 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front IV.2. SITE DESIGN AND DRAINAGE PLAN Describe site design and drainage plan including • A narrative of site design practices utilized or rationale for not using practices; • A narrative of how site is designed to allow BMPs to be incorporated to the MEP • A table of DMA characteristics and list of LID BMPs proposed in each DMA. • Reference to the WQMP plot plan. • Calculation of Design Capture Volume (DCV) for each drainage area. The lot is relatively flat and rectangular is shape. The finish floor of the house will be raised in order to be above the flood elevation. The site will be divided up into 3 drainage management areas (DMA) for infiltration. The first DMA will make use of localized on-lot infiltration. The area will sheet flow into planter areas and be collected into a drain line. This line will filter through a rock trench before exiting to the back alley. The other two DMA's will also make use oflocalized on-lot infiltration. Most of the runoff will be from the roof of the building. This water will be collected in a drain line as well as the surface water below and be rouled to a rock trench iii the back next to the alley. These areas will be pre-treated with a filter to treat the unmet infiltration volume See Plot Plan Mr. Dave Gunderson WQHP-409 Bay Front.docx Section IV Page 11 PA2017-045 TECHNICAL GUIDANCE DOCUMENT Table 2.7: Infiltration BMP Feasibility Worksheet Infeasibility Criteria Yes No Would Infiltration BMPs pose significant risk for 1 groundwater related concerns? Refer to Appendix VIII N (Worksheet I) for guidance on groundwater-related infiltration feasibility criteria. Provide basis: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Would Infiltration BMPs pose significant risk of increasing risk of geotechnical hazards that cannot be mitigated to an acceptable level? {Yes if the answer to any of the following questions is yes, as established by a geotechnical expert): • The BMP can only be located less than 50 feet away N 2 from slopes steeper than 15 percent • The BMP can only be located less than eight feet from building foundations or an alternative setback. • A study prepared by a geotechnical professional or an available watershed study substantiates that stormwater infiltration would potentially result in significantly increased risks of geotechnical hazards that cannot be mitigated to an acceptable level. Provide basis: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. 3 Would infiltration of the DCV from drainage area violate N downstream water rights? Provide basis: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. 2-34 May 19, 2011 PA2017-045 TECHNICAL GUIDANCE DOCUMENT Table 2.7: Infiltration BMP Feasibility Worksheet (continued) Partial Infeasibility Criteria Yes ' No Is proposed infiltration facility located on HSG D soils or the site geotechnical investigation identifies presence of N 4 soil characteristics which support categorization as D soils? Provide basis: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Is measured infiltration rate below proposed facility N 5 less than 0.3 inches per hour? This calculation shall be based on the methods described in AEmendix VII. Provide basis: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Would reduction of over predeveloped conditions cause impairments to downstream beneficial uses, 6 such as change of seasonality of ephemeral washes N or increased discharge of contaminated groundwater to surface waters? Provide citation to applicable study and summarize findings relative to the amount of infiltration that is permissible: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Would an increase in infiltration over predeveloped conditions cause impairments to downstream 7 beneficial uses, such as change of seasonality of N ephemeral washes or increased discharge of contaminated groundwater to surface waters? Provide citation to applicable study and summarize findings relative to the amount of infiltration that is permissible: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. 2-35 May 19,2011 PA2017-045 TECHNICAL GUIDANCE DOCUMENT Table 2.7: Infiltration BMP l'easibility Worksheet (continued) Infiltration Screening Results (check box corresponding to result): Is there substantial evidence that infiltration from the project would result in a significant increase in l&I to the sanitary sewer that cannot be sufficiently mitigated? (See Appendix XVII) N 8 Provide narrative discussion and supporting evidence: Summarize findings of studies provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. -------------------------------------------------------------------------------------------------------- If any answer from row 1-3 is yes: infiltration of any volume is not feasible within the OMA or equivalent. 9 Provide basis: Summarize findings of infeasibility screening ••---~------·~T-T•r-------~-------------------•-•••••-•-••••••••-•-•••••-•-••••••••••••••••••••••••••••••• If any answer from row 4-7 is yes, infiltration is permissible but is not presumed to be feasible for the entire DCV. Criteria for designing biotreatment BMPs to achieve the maximum feasible infiltration and ET shall 10 apply_ Provide basis: Summarize findings of infeasibility screening •••-•••••••••••••••••••••••••••••••-•-•-•••••-•=u-~~~~--------------------------------------------------- If all answers to rows 1 through 11 are no, infiltration of the 11 full DCV is potentially feasible, BMPs must be designed to infiltrate the full DCV to the maximum extent practicable. Harvest and Use Infeasibility Harvest and use infeasibility criteria include: • If inadequate demand exists for the use of the harvested rainwater. See Appendix X for guidance on determining harvested water demand and applicable feasibility thresholds. • If the use of harvested water for the type of demand on the project violates codes or ordinances most applicable to stormwater harvesting in effect at the time of project application and a waiver of these codes and/ or ordinances cannot be obtained. It is noted that codes and ordinances most applicable to storrnwater harvesting may change 2-36 May 19,2011 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front IV.3.1 Hydrologic Source Controls If required HSCs are included, fill out applicable check box forms. If the retention criteria are otherwise met with other LID BMPs, include a statement indicating HSCs not required. Name Included? Localized on-lot infiltration l8l Impervious area dispersion (e.g. roof top D disconnection) IV.3.2 Infiltration BMPs Identify infiltration BMPs to be used in project. If design volume cannot be met state why BMPs cannot be met Name Included? Infiltration trenches l8l Infiltration basins D Show calculations below to demonstrate if the LID Design Strom Capture Volume can be met with infiltration BMPs. If not document how much can be met with infiltration and document why it is not feasible to meet the full volume with infiltration BMPs. ~ ~ Design Capture Storm 85th percentile, 24 hour V==C x d x Ax 43560 sf/ac x 1/12 in/ft, C=o.85, d=o.65 DMA-1 = 385 sf, V1= 0.85 x (0.65) x 385 x 1/12 = 17.8 cf DMA-2 = 1213 sf, V1= 0.85 x (0.65) x 1213 x 1/12 = 55.8 cf DMA-3 = 1127 sf, V1= 0.85 x (0.65) x 1127 x 1/12 = 51.9 cf Use Rock Trench Max retention depth for 48 hour draw down = 48 hours x 1.0 in/ hr = 48" = 4'. Max depth= 4' x .40 (porosity)= 1.6' Minimum Area-1 of rock trench= 17.8 cf/ 1.6 = 11.8' use 8' long x 2' wide Minimum Area-2 of rock trench = 55.8 cf/ 1.6 = 34-8' use 10' long x 2' wide -Pre-Treat Minimum Area-3 of rock trench = 51.9 cf/ 1.6 = 32.4' use 9' long x 2' wide -Pre-Treat Mr. Dave Gunderson WQHP-409 Bay Front.docx Section IV Page 12 ' PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Treatment control BMP 2 Year Storm Q"" CIA Q = cfs, I= in/hr, A= acres per OCHM !=intensity, in/hr= at(b} per OCHM t=duration = 5 min I= 5.702 x 5(-0.574) = 2.26 in/hr Pretreat all areas: Q2 = .87 x 2.26 x 1213/43,560 = 0.054 cfs Q3 = .87 x 2.26 x 1127/43,560 = 0.051 cfs See Inlet filters by REM Inc. IV.3.7 Treatment Control BMPs Treatment Ce>ntrol BMPs BMP Name PRE-2 -Filter Inserts Mr. Dave Gunderson WQHP-409 Bay Front.docx .. BMP Description Catch Basin Filter Inserts n n . ' .. Section IV Page 13 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front IV.3.9 Structural Source Control BMPs Fill out structural source control check box forms or provide a brief narrative explaining if Structural source controls were not used. Structural Source Control BMPs . : .. : Identifier Name S1 Provide storm drain system stenciling andsignage Design and construct outdoor material S2 storage areas to reduce pollution introduction Design and construct trash and waste S3 storage areas to reduce pollution introduction Use efficient irrigation systems & S4 landscape design, water conservation, smart controllers, and source control S5 Protect slopes and channels and provide energy dissipation Incorporate requirements applicable to individual priority project categories (from SDRWQCB NPDES Permit) S6 Dock areas 57 Maintenance bays S8 Vehicle wash areas ~ S9 Outdoor processing areas S10 Equipment wash areas S11 Fueling areas S12 Hillside landscaping S13 Wash water conb·ol for food preparation areas S14 Community car wash racks Mr. Dave Gunderson WQHP-409 Bay Front.docx i Check One Not Included Applicable D 18] D 18] D 18] 181 D D 181 D 18] D 18] D 181 D ~ 181 D IZI D 181 D 181 D IZI D IZI D IZI ~ Section IV Page 14 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section V Inspection/Maintenance Responsibility for BMPs Fill out information in table below. Prepare and attach an Operation and Maintenance Plan. Identify the mechanism through which BMPs will be maintained. Inspection and maintenance records must be kept for a minimum of five years for inspection by the regulatory agencies. ·.·· .·:-:• · .....• PI\IIP····~n$pection/·Ma i ntel'lclll~~ BMP . Infiltration trenches Filter Inserts Mr. Dave Gunderson . R.eponsible · Party(s) Owner Owner .. ·. Iraspection/ •· M~intenance Ac:tivities Reqllired··· ..... . Inspect and cleanout. Auger if necessary to clean. Inspect and clean. Replace annually. Minimum· Freqoency of Activities · .. ·.··> . Inspect before the rainy season and after a storm event Inspect before the rainy season and after a storm event Section V Page 15 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section VI Site Plan and Drainage Plan VI.1 SITE PLAN AND DRAINAGE PLAN Include a site plan and drainage plan sheet set containing the following minimum information: • Project location • Site boundary • Land uses and land covers, as applicable • Suitability/ feasibility constraints • Structural BMP locations • Drainage delineations and flow information • Drainage connections • BMP details Mr. Dave Gunderson Section VI Page 16 PA2017-045 Water Quality Management Plan (WQMP) 409 N. Bay Front Section VII Educational Materials Refer to the Orange County Stormwater Program (ocwatersheds.com) for a library of materials available. For the copy submitted to the Permittee, only attach the educational materials specifically applicable to the project. Other materials specific to the project may be included as well and must be attached. · .... Education Materials.· . .· . . .·· . ...... Residential Material Check If Business Material (http:/ /www.ocwatersheds.com) Applicable (http://www.ocwatersheds.com) The Ocean Begins at Your Front Door [gl Tips for the Automotive Industry Tips for Car Wash Fund-raisers D Tips for Using Concrete and Mortar Tips for the Home Mechanic D Tips for the Food Service Industry Homeowners Guide for Sustainable D Proper Maintenance Practices for Your Water Use Business Household Tips [gl Proper Disposal of Household Other Material Hazardous Waste [gl Recycle at Your Local Used Oil D Collection Center (North County) Recycle at Your Local Used Oil D Collection Center (Central County) Recycle at Your Local Used Oil D Collection Center {South County) Tips for Mainhfining a Septic Tank " ~ System D Responsible Pest Control [gJ Sewer Spill D Tips for the Home Improvement Projects D Tips for Horse Care D Tips for Landscaping and Gardening [gl Tips for Pet Care D Tips for Pool Maintenance [gJ Tips for Residential Pool, Landscape and [gl Hardscape Drains Tips for Projects Using Paint D Mr. Dave Gunderson " .· Check If Applicable D D D D Check If Attached D D D D D D D D D D D D D Section VII Page 17 PA2017-045 ATTACHMENT A WQMP PLOT PLAN PA2017-045 PA2017-045 ATTACHMENT B EDUCATION MATERIALS PA2017-045 .. For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatersheds.com To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline at 1-877,:-89-SPILL (l-87~-897-7455). For emergencies, dial 911. The tips contained in this brochure provide useful information to help prevent water pollution. If you have other suggestions, please contact your city's stormwater representatives or call the Orange County Stormwater Program. 0 Printed on Recycled Paper PA2017-045 Tips for Residential Pool, Landscape and Hardscape Drains Pool Maintenance All pool water discharged to the curb, gutter or permitted pool drain from your property must meet the following water quality criteria: • The residual chlorine does not exceed 0 .1 mg/L (parts per million). • The pH is between 6.5 and 8.5. • The water is free of any unusual coloration. • There is no discharge of filter media or acid cleaning wastes. Some cities have ordinances that do not allow pool water to be discharged to the storm drain. Check with your city. Landscape and Hardscape Drains The following recommendations will help reduce or prevent pollutants from your landscape and hardscape drains from entering the street, gutter or storm drain. Unlike water that enters the sewer (from sinks and toilets), water that enters a landscape or hardscape drain is not treated before entering our creeks, rivers, bays,and ocean. Household Activities • • Do not rinse spills of materials or chemicals to any drain. Use dry cleanup methods such as applying cat litter or another absorbent material, then sweep it up and dispose of it in the trash. If the material is hazardous, dispose of it at a Household Hazardous Waste Collection Center (HHWCC). For locations, call (714) 834-6752 or visit www.oclandfills.com. • Do not hose down your driveways, sidewalks or patios to your landscape or hardscape drain. Sweep up debris and dispose of it in the trash. • Always pick up after your pet. Flush waste down the toilet or dispose of it in the trash. • Do not store items such as cleaners, batteries, automotive fluids, paint products, TVs, or computer monitors uncovered outdoors. Take them to a HHWCC for disposal. Yard Maintenance • Do not overwater. Water by hand or set automated irrigation systems to reflect seasonal water needs. • Follow directions on pesticides and fertilizers (measure, do not estimate amounts) and do not use if rain is predicted within 48 hours. • Cultivate your garden often to control weeds and reduce the need to use chemicals. Vehicle Maintenance • • • • Never pour oil or antifreeze down your landscape or hardscape drain. Recycle these substances at a service station, a waste collection center or used oil recycling center. For locations, contact the Used Oil Program at 1-800- CLEANUP or visit www.CLEANUP.org. v\Thenever possible, take your vehicle to a commercial car wash. If you do wash your vehicle at home, clo not allow the washwater to go down your landscape or hardscape drain. Instead, dispose of it in the sanitary sewer (a sink or toilet) or onto an absorbent surface such as your lawn. Use a spray nozzle that will shut off the water when not in use. PA2017-045 For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatersheds.com To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline 1-877-89-SPILL ( 1-877-897-7 455). For emergencies, dial 911. The tips contained in this brochure provide useful infonnation to help prevent water pollution while caring for your pet. If you have other suggestions, please contact your city's stormwater representatives or call the Orange County Stormwater Program. 0 PA2017-045 Never let any pet care products or washwater run off your yard and into the street, gutter or storm drain. Washing Your Pets Even biodegradable soaps and shampoos can be harmful to marine life and the environment. •If possible, bathe your pets indoors using less-toxic shampoos or have your pet professionally groomed. Follow instructions on the products and clean up spills. •If you bathe your pet outside, wash it on your lawn or another absorbent/ permeable surface to keep the washwater from running into the street, gutter or storm drain. Flea Control ' • Consider using oral or topical flea control products. •If you use flea control products such as shampoos, sprays or collars, make sure to dispose of any unused products at a Household Hazardous Waste Collection Center. For location information, call (714) 834-6752. ' Why You Should Pick Up After Your Pet It's the law! Every city has an ordinance reqrnnng you to pick up after your pet. Besides being a nuisance, pet waste can lead to water pollution, even if you live inland. During rainfall, pet waste left outdoors can wash into storm drains. This waste flows directly into our waterways and the ocean where it can harm human health, marine life and the environment. As it decomposes, pet waste demands a high level of oxygen from water. This decomposition can contribute to killing marine life by reducing the amount of dissolved oxygen available to them. Have fun with your pets, but please be a responsible pet owner by taking care of them and the environment. • Take a bag with you on walks to pick up after your pet. • Dispose of the waste in the trash or in a toilet. PA2017-045 Do your part to prevent water pollution in our creeks, rivers, bays and ocean. Clean beaches and healthy creeks, rivers, bays, and ocean are important to Orange County. However, many common household REMEMBER THE WATER IN YOUR STORM DRAIN IS NOT TREATED BEFORE IT ENTERS OUR WATERWAYS activities can lead to water pollution if you're not careful. Litter, oil, chemicals and other substances that are left on your yard or driveway can be blown or washed into storm drains that flow to the ocean. Over-watering your lawn and washing your car can also flush materials into the storm drains. Unlike water in sanitary sewers (from sinks and toilets), water in storm drains is not treated. You would never pour soap, fertilizers or oil into the ocean, so don't let them enter streets, gutters or storm drains. Follow the easy tips in this brochure to help prevent water pollution. For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatersheds.com To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline 1-877-89-SPILL (1-877-897-7455). For emergencies, dial 911. The tips contained in this brochure provide useful information to help prevent water pollution while performing everyday household activities. If you have other suggestions, please contact your city's stermwater representatives or ca11 the Orange County Stormwater Program. GENUINE RECYCLED P A P E R m 50% PRE-CONSUMER -16%POSH:011St"1ER RECYCLE USED OIL PREVENTION PA2017-045 Household Activities • Do not rinse spills with water! Sweep outdoor spills and dispose of in the trash. For wet spills like oil, apply cat litter or another absorbent material, then sweep and bring to a household hazardous waste collection center (HHWCC). • Securely cover trash cans. • Take household hazardous waste to a house- hold hazardous waste collection center. • Store household hazardous waste in closed, labeled containers inside or under a cover. • Do not hose down your driveway, sidewalk or patio. Sweep up debris and dispose of in trash. • Always pick up after your pet. Flush waste down the toilet or dispose of in the trash. • Bathe pets indoors or have them professionally groomed. Household Hazardous Wastes include: · A Paint ~ers, paint strippers and removers A Adhesives A Dram op¢ners A Oven cle~ers A Wood anll metal cleaners and polishes A Herbicid~s and pesticides . A FungicicJ~/wood preservatives A Automo~ve fluids and products .A.Grease arid rust·solvents · A Thermonieters and other products containing mercury I . ... Fluorescent lamps A Cathode ray tubes, e.g. TVs, computer .. monitors! · ... Pool and Jspa, chemicals I Gardening Activities • Follow directions on pesticides and fertilizers, (measure, do not estimate amounts) and do not use if rain is predicted within 48 hours. • Water your lawn and garden by hand to control the amount of water you use. Set irrigation systems to reflect seasonal water needs. If water flows off your yard and onto your driveway or sidewalk, your system is over-watering. • · Mulch clippings or leave them on the lawn. If necessary, dispose in a green waste container . • • Cultivate your garden often to control weeds. Washing and Maintaining Your Car • Take your car to a commercial car wash whenever possible. • Choose soaps, cleaners, or detergents labeled "non-toxic," "phosphate free" or "biodegradable." Vegetable and citrus- based products are typically safest for the environment, but even these should not be allowed into the storm drain. • Shake floor mats into a trash can or vacuum to clean . ' • Do not use acid-based wheel cleaners and "hose off" engine degreasers at home. They can be used at a commercial facility, which can properly process the washwater. • Do not dump washwater onto your driveway, sidewalk, street, gutter or storm drain. Excess washwater should be disposed of in the sanitary sewers ( through a sink, or toilet) or onto an absorbent surface like your lawn. • Use a nozzle to tum off water when not actively washing down automobile. • Monitor vehicles for leaks and place pans under leaks. Keep your car well maintained to stop and prevent leaks. • Use cat litter or other absorbents and sweep to remove any materials deposited by vehicles. Contain sweepings and dispose of at a HHWCC. • Perform automobile repair and maintenance under a covered area and use drip pans or plastic sheeting to keep spills and waste material from reaching storm drains. • Never pour oil or antifreeze in the street, gutter or storm drains. Recycle these substances at a service station, HHWCC, or used oil recycling center. For the nearest Used Oil Collection Center call 1-800-CLEANUP or visit www.ciwmb.ca.gov/UsedOil. For locations ~nd hours of Householi:J Hazardous Waste Collection Centers inAnq,heim; Huntington Beach, Irvine land San Juan Capistrano, call (714 )834-6752 or visit ~'!V-oclandfills.cc,m. • PA2017-045 For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatersheds.com UCCE Master Gardener Hotline: (714) 708-1646 To report a spill, call the Orange County 24-Hour Water Pollution Problem , Reporting Hotline 1-877-89-SPILL ( 1-877-897-7 455). For emergencies, dial 911. The tips contained in this brochure provide useful information to help prevent water polJution while landscaping or gardening. If you have other suggestions, please contact your city's stormwater representatives or call the Orange County Storm.water Program. ·"t ... Printed on Recycled Paper PA2017-045 Never allow gardening products or polluted water to enter the street, gutter or storm drain. General Landscaping Tips • Protect stockpiles and materials from wind and rain by storing them under tarps or secured plastic sheeting. •Prevent erosion of slopes by planting fast-growing, dense ground covering plants. These will shield and bind the soil. •Plant native vegetation to reduce the amount of water, fertilizers, and pesticide applied to the landscape. •Never apply pesticides or fertilizers when rain is predicted within the next 48 hours. Garden & Lawn Maintenance •Do not overwater. Use irrigation practices such as drip irrigation, soaker hoses or micro spray systems. Periodically inspect and fix leaks and misdirected sprinklers. • Do not rake or blow leaves, clippings or pruning waste into the street, gutter or storm drain. Instead, dispose of green waste by composting, hauling it to a permitted landfill, or recycling it through your city's program. • •Use slow-release fertilizers to minimize leaching, and use organic fertilizers. • Read labels and use only as directed. Do not over-apply pesticides or fertilizers. Apply to spots as needed, rather than blanketing an entire • area. • Store pesticides, fertilizers and other chemicals in a dry covered area to prevent exposure that may result in the deterioration of containers and packaging. • Rinse empty pesticide containers and re-use rinse water as you would use the product. Do not dump rinse water down storm drains. Dispose of empty containers in the trash. •When available, use non-toxic alternatives to traditional pesticides, and use pesticides specifically designed to control the pest you are targeting. For more information, visit www.ipm.ucdavis.edu. • If fertilizer is spilled, sweep up the spill before irrigating. If the spill is liquid, apply an absorbent material such as cat litter, and then sweep it up and dispose of it in the trash. •Take unwanted pesticides to a Household Hazardous Waste Collection Center to be recycled. Locations are provided below. PA2017-045 • For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatersheds.com To Report Illegal Dumping of Household Hazardous Waste call 1-800-69-TOXIC To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline 1-877-89-SPILL (l-877-897-7455). For emergencies, dial 911 . . l . • RECYCLE USED OIL 0 PROJECT Pol3wTion PA2017-045 Leftover household products that contain corrosive, toxic, ignitable, or reactive WHEN POSSIBLE, USE NON-HAZARDOUS OR J_ESS-HAZARDOUS PRODUCTS. ingredients are considered to be "household hazardous waste" or "HHW." HHW can be found throughout your home, including the bathroom, kitchen, laundry room and garage. Disposal of HHW down the drain, on the ground, into storm drains, or in the trash is illegal and unsafe. Proper disposal of HHW is actually easy. Simply drop them off at a Household Hazardous Waste Collection Center (HHWCC) for free disposal and recycling. Many materials including anti-freeze, latex- based paint, motor oil and batteries can be recycled. Some centers have a "Stop & Swap" program that lets you take partially used home, garden, and automobile products free of charge. There are four HHWCCs in Orange County: Anaheim: .................. 1071 N. Blue Gum St Huntington Beach: ......... 17121 Nichols St Irvine: ............................ 6411 Oak Canyon Sanjuan Capistrano: ... 32250 La Pata Ave Centers are open Tuesday-Saturday, 9 a.m.- 3 p.m. Centers are closed on rainy days and major holidays. For more information, call (714) 834-6752 or visit www.oclandfills.com. Cornman hauselwkl hazardous wastes • Batteries • Paint and paint products • Adhesives • Drain openers • Household cleaning products • Wood and metal cleaners and polishes • Pesticides • Fungicides/wood preservatives • Automotive products (antifreeze, motor oil, fluids) • Grease and rust solvents • Fluorescent lamps • Mercury (thermometers & thermostats) • All forms of electronic waste including computers and microwaves • Pool & spa chemicals • Cleaners • Medications • Propane ( camping & BBQ) • Mercury-containing lamps • Television & monitors (CRTs, flatscreens) Tips for lwuselwld hazardous waste • Never dispose of HHW in the trash, street, gutter, storm drain or sewer. • Keep these materials in closed, labeled containers and store materials indoors or under a cover. • When possible, use non-hazardous products. • Reuse products whenever possible or share with family and friends. • Purchase only as much of a product as you'll need. Empty containers may be disposed of in the trash. • HHW can be harmful to humans, pets and the environment. Report emergencies to 911. - PA2017-045 For more information, please call University of California Cooperative Extension Master Gardeners at (714) 708-1646 or visit these Web sites: www.uccemg.org www.ipm.ucdavis.edu For instructions on collecting a specimen sample visit the Orange County Agriculture Commissioner's website at: http:/ /www.ocagcomm.com/ser_lab.asp To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline at 1-877-89-SPILL (l-877-897-7455). For emergencies, dial 911. Information From: Cheryl Wilen, Area 1PM Advisor; Darren Haver, Watershed Management Advisor; Mary Louise Flint, 1PM Education and Publication ' Director; Pamela M. Geisel, Environmental Horticulture Advisor; Carolyn L. Unruh, University of California Cooperative Extension staff writer. Photos courtesy of the UC Statewide 1PM Program and Darren Haver. Funding for this brochure has been provided in full or in part through an agreement with the State Water Resources Control Board (S'\VR.CB) pursuant to the ,Costa-Machado Water Act of2000 (Prop. 13). 0 PA2017-045 Key Steps to Follow: Steb J: Correctly identify the pest (insect, weeA, rodent, or disease) and verify that it is actually causing the problem. This is important because beneficial insects are often mistaken for pests and sprayed with pesticides needlessly. Three life stages of the common lady Consult with a beet]e, a beneficial insect. Certified Nursery Professional at a local nursery or garden center or send a sample of the pest to the Orange County Agricultural Commissioner's Office. Determine if the pest is still present -even though you see damage, the pest may have left. Step 2: Determine how many pests are present and causing damage. Small pest populations may be controlled more safely using non- pesticide techniques. These include removing food sources, washing off leaves with a strong stream of water, blocking entry into the home using caulking and replacing problem plants with ones less susceptible to pests. Integrated Pest Management (IPM) usually combines several least toxic pest control methods for long-term prevention and management of pest problems without harming you, your family, or the environment. Steb J: If a pesticide must be used, choose the feast toxic chemical. Obtain information on the least toxic pesticides that are effective at controlling the target pest trom the UC Statewide Integrated Pest Management (1PM) Program's Web site at www.ipm.ucdavis.edu. Seek out the assistance of a Certified Nursery Professional at a local nursery or garden center when selecting a pesticide. Purchase the smallest amount of pesticide available. Apply the pesticide to the pest during its most vulnc:;rable life stage. This information can be found on the pesticide label. Step 4: Wear appropriate protective clothing. Follow pesticide labels regarding specific types ofprotective equipment you should wear. Protective clothing should always be washed separately from other clothing. Steb 5: Continuously monitor external con&tions when applying pesticides such as weather, irrigation, and the presence of children and animals. Never apply pesticides when rain is predicted within the next 48 hours. Also, do not water after applying pesticides unless the directions say it is necessary. Apply pesticides when the air is still; breezy conditions may cause the spray or dust to drift away from your targeted area. In case of an emergency call 911 and/ or the regional poison control number at (714) 634-5988 or (800) 5444404 (CA only). For general questions you may also visit www.calpoison.org. S-tep 6: In the event of accidental spills~ sweep up or use an absorbent agent to remove any excess pesticides. Avoid the use of water. Be prepared. Have a broom, dust pan, or dry absorbent material, such as cat litter, newspapers or paper towels, ready to assist in cleaning up spills. Contain and clean up the spill right away. Place contaminated materials in a doubled plastic bag. All materials used to clean up the spill should be properly disposed of according to your local Household Hazardous Waste Disposal site. Step_ 7: Properly store and dispose of unused pesticides. Purchase Ready-To- Use (RTU) products to avoid storing large concentrated quantities of pesticides. Store unused chemicals in a locked cabinet. Unused pesticide chemicals may be disposed of at a Household Hazardous Waste Collection Center. Empty pesticide containers should be triple rinsed prior to disposing of them in the trash. Household Hazardous Waste Collection Center (714) 834-6752 www.oclandfills.com PROJECT PoHwnon PREVENTION , ... PA2017-045 For more information, please call the Orange County Stormwater Program at 1-877-89-SPILL (1-877-897-7455) or visit www.ocwatershecls.com To report a spill, call the Orange County 24-Hour Water Pollution Problem Reporting Hotline at 1-877-89-SPILL (1-877-897-7455). For emergencies, dial 911. The tips contained in this brochure provide useful information to help prevent water pollution while performing home improvement projects. If you have other suggestions, please contact your city's stonnwater representatives or call the Orange County Stormwater Program. 0 PA2017-045 Home improvement projects can cause significant damage to the environment. vVhether you hire a contractor or work on the house yourself, it is important to follow these simple tips while renovating, remodeling or improving your home: General Construction • Schedule projects for dry weather. • Keep all construction debris away from the street, gutter and storm drain. • Store materials under cover with temporary roofs o·r plastic sheets to eliminate or reduce the possibility that rainfall, runoff or wind will carry materials from the project site to the street, storm drain or adjacent properties. Building Materials • Never hose materials into a street, gutter or storm drain. • Exposed piles of construction material should not be stored on the street or sidewalk. • Minimize waste by ordering only the amount of materials needed to complete the job. • Do not mix more fresh concrete than is needed for each project. • Wash concrete mixers and equipment in a designated washout area where the water can flow into a containment area or onto dirt. • Dispose of small amounts of dry excess materials in the trash. Powdery waste, such as dry concrete, must be properly contained within a box or bag prior to disposal. Call your local trash hauler for weight and size limits. Paint • Measure the room or object to be painted, then buy only the amount needed. • Place the lid on firmly and store the paint can upside- down in a dry location away from the elements. • Tools such as brushes, buckets and rags should never be washed where excess water can drain into the sl!reet, gutter or storm drain. All tools should be rinsed in a sink connected to the sanitary sewer. • When disposing of paint, never put wet paint in the trash. • Dispose of water-based paint by removing the lid and letting it dry in the can. Large amounts must be taken to a Household Hazardous Waste C'ollection Center (HHWCC). • Oil-based paint is a household hazardous waste. All leftover paint should be taken toaHHWCC. • For HHWCC locations and hours, call (714) 834-6752 or visit www.oclandfills.com. Erosion Control • Schedule grading and excavation projects for dry weather. • When temporarily removing soil, pile it in a contained, covered area where it cannot spill into the street, or obtain the required temporary encroachment or street closure permit and follow the conditions instructed by the permit. • When permanently removing large quantities of soil, a disposal location must be found prior to excavation. Numerous businesses are available to handle disposal needs. For disposal options, visit www.ciwmb.ca.gov/SWIS. • Prevent erosion by planting fast-gr_owing annual and perennial grasses. They will shield and bind the soil. Recycle • Use a construction and demolition recycling company to recycle lumber, paper, cardboard, metals, masonry (bricks, concrete, etc.), carpet, plastic, pipes (plastic, met.al and clay), drywall, rocks, dirt and green waste. • For a listing of construction and demolition recycling . locations in your area, visit www.ciwmb.ca.gov/recycle. Spills • Clean up spills immediately by using an absorbent material such as cat litter, then sweep it up and dispose of it in the trash. • Immediately report spills that have entered the street, gutter or storm drain to the County's 24-Hour Water Pollution Problem Reporting Hotline at (714) 567-6363 or visit www.ocwatersheds.com to fill out an incident reporting form. PA2017-045 . 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Ocean and Bay W.atcr Closure iUid Posting Hotline: (714) 433-6400 orv.isit www.ocbeachinfo.com Integrated Waste Management D-ept, of Orange County (714) 83-4-675'2 or 'li~lr www.odandfill.8.com rnr lnfornmtion 011 h-0u.'!.t:hotd ha:;:ardou~ W.Lite rnllection c:of"nten, .--eqding c:<""nten arill ~~1ic[ w,1.m'.· Col(ecth_rn o.c. /li;ricmwre CQtt1mi..iouer (1l4} 447 .. 1100 orvi~it www~ocagc-Qmm.com Stormwat«::r Bes;t MimagemmtPrai::ti~ Hmdbook V~111tt YiWW,cabmphandlJ-Qob.c~m UC Muter Gardener Hollin• (714) 708-1646 orvisit www.uccemg.com The Or.i.nyr: f'..Olmty SL01-mwJ.tc-rPmlJr+im ha.5 ,r.re11!l"d · :al1d mode1;.i.t,:4, ttn -r.-ll;"r.lrOnk m:-111i11g U:ll lu t·adtit..t.ll!' -rnnlLttunLcittlort,;, -tak -q11i:o11tian~ and exchl'lnge iid~iu anm\1g h.s t1:1-e1"d. a.hnnl WLL~ a.1~d toph'~ related lo 1oonuwalt"I" and urban mnoff arld 1he implettLentad,..n ,of pm1ira.111 f"h:nu·nt~. Tojoio the li!il, t>le.l.';e"lend an email to ocslon11wa1r:rinro-jnln@liit.or:;1,11ai.c11hl'!1lu:m11 "S:;}:l~J.InS paAt?d pm': '81.0] ~Up(J"Ed UO Sllf~!:l!!I (~Q· ·.~anew :J!u-efuo .I~t]lO pun 'al!il?M feWJUE '~UJdd~p u.11-rnr.1;,ll-!'"I. ·s.;;,pµ~l)t:: uop,11.I1suo:::> pue :,d-e::>spunr WOJJ sµqdp 1-snp pU"e tl01SOJ.J UOS. •'S.Ja-AOW;Jl 1up:~d pm~ "lUJt::d 'i.!.)tmdp JO ~sods!P .1ado.1dw1• 'SW.1EJ pm! Su.ap.t~ 'SWII.E] lUOJJ 'SJ.aZ!HUs:l'J pus S~pp9S~d • ·-s:up pm:: ii"upt?[d 1ma-m '1sru •iu1ed p.:,,J~q1e1111-1.. '-:,meqx.;;, ;.Jp~1.1;;1h. Uf puno3.SfB1ilW• ·sp1nu ;mrlJua Ja'!l0 pU1' 1!0 pasn JO ]ESOdS]p ladOJdlU]. •,smds pm:: S)f"Eill ~Af.lOWOlilV. uoµnJlOJ ;i:1.mos lll!OJ·UON Jo sa:wws Allio Viejo. • _ ..... _ ... An.ilicjm Public \o1/orks Operations . ~ . (714) Brea Engineering ...•... , , , .....•.. (714) BuenaPa.rkPublkWorh , , , • , . , , ..•.• (714) Co.sta.Mesaiaublic::Services ...•..... , • , , (714) Cypres.1, 'riublk Works .•.... _ ...... , .. (714) Dan.a Point P11blic: Works. , ... , . . . , (949) Fouma.in.VaU!'.!yPub!:ic\'Vor4 •. , •.. , •... (714) Fuiierwn Engintcring Dept., , . , . . .. r • • • (714) Oarden Grm'e Public\-Vorks. . . . . , • (714) Huntington Beach Pub]k Worb ... ~ . , , , • (714) l:r.iue Public Works ... _ . _ ..•.•.•... , (949) La Habra Public Si:".--vices.. . . .•.•....... (562) LaPaJmaPubljc'Wodu;,, .•........... (714) Lagunn Beach Waler QuatiLy. . •. (949) l..i.gu:na Hms Public Sen·iccs ..•......•• , (949) l....;i.gnna Niguel Public Works .•... , ..•.• (949) l.a_g,.Lna ·woods Public Works. , •........ , (949) Lake Furc~L P~Lblic Works , , ••........• (949) Lru.AlarnltosCommunityDev .• , .• ,,. _ ... (562} Mission Viejo Public Works . , , , • , • , • , , . (949) Newport Beac::h, Code & Water ., Qu:tlil)' Enforcement ...•.... _ . _ ....• (949) Orange Public ,-vorh .. _ . _ .. _ ........ (714) Placent.ia PubUc \fork., ... _ .. _ . _ ...... (?14) Randto Sanw M~rgurita ••.. , •. · _ . _ ... _ (!::14!]) San Ct,:met\te EnvironmC"'ttLaL P-1 ogrrlllU. • , , , • (949) 81:mJtliUl C:apl11:trano Eng{nruing. , • ·, • , , , • HH9) s~11ta Au.-rnMlr: Work., ........•....• (7H) 562-3655 754-5323 '!!29·6740. 2-48--.3584 59:M<T:41 738-6853 741-5956 5%-5431 724-6315 905-9792 690-3310 497-0378 '107-~650 .862--433'7 639-0500 46EH80 431-3536 470-3056 644-3215 532-64BO 993-8245 63!"1-U!OI) %l..fi.L4.~ 234-IU3 ~t7,1:180 Sc·al Bt';u:h E11gineering .... _ ...... , . , (M2) 431-25''i!7 x3E7 St.:um:~n Puhtk WQrk., .•..... , .....•• ('1141 a79-9':!'2:.! ,i:204 'lh,1tln P,lhlic Wod(lo;/E11ginr:i:dng, ., , , , .•. _ (7l4) 573-3Ui0 Villa Park E.ngin,ecririg, , , . , . · . .", , , •••. {7'4) 998--1500 We,,tn~in~ter Pul,lit:" ,Vork.~/Eng{t1e~1il"l~ , ••• (714) 89&,:t:Jll x446 Vnrba Linda Eni:Jinr..cring .. _ .•• , •••••. {7l4J rmt .. 1198 Or.u~ge CoumyS1omm~,1tef Program , , , • , •. (S77J 897 .. '1-t5Ji 01-...11gt'! Cr,l,D1r 24-Hou..- W.at.er Poltutlon P,ohkm ~~ning Hatiin-r.- 1./l77./l[hWILL {1.S77.S97•7f5.;) On.,Linc W.itef PollUtl'l"n E'"tol.il-em Reporting Fonn www.ocwatersheds.com -liiA.RAU,ilRA\ ,mo ~UfUlU:.J ;:uOFJq p..YIP.->ll 1.0U tt1 b'U!WP-tlUDlB U! JiJiJeM. ~(N1.arto1 JO lftltJH Ulillj) S:.(.J.M..;JS ..(.:m;a~lll!fi Uf f;IJ:9-!M ~lfHUR ilill1.}l~..{s j;IIM.;ii' . rU-ei!lll:l:i:! 1110 ma.g ai~un;d.iis ;ut'l lllt~ltlp uiioisa ·sutp.J(J UflOlii Oltll lf[P.!J;}lmtt pU.J!i o,IP. UP.O U]P..I JO ;,soq t1;,p.xoli V. tn01J .l~J•M ?Ill fl V • . '!iU~e.Ip WJO.l,S 0.1,UJ p.ll[S'P.M. .10 U.MO[q aq lllfJ -S:E.JUP.:}[=) pmi R.t;;J.2mµ::1J 'i;;:i,ppfl!i".lld .'JUfed 'fiO ..1010Ul.~"'!{11-B~S1iid1JlS1lq pttV. fjdp]q.M •-sat11oq ~ppr1i:io olSil ;:)M ~lt!l{liuy • 'lill!l!lP U1Jo1s: OlUJ R1mt1nnod ueqJn J~t{lO pm~ i;~u!ddn:> llilml 'q"S&Q s;,µ.n:::~ S-d:J.mos J::npo pue :zlu!ll!il?M .g.p~q;}A juop~µJ] {UOJJ ::isn .1:;i,lt?,1,\ ;;)Al'SSdJ-X~ u;;H{.',\. .maih aiqi JO .;Jrn-p ,{U'EI U~ddeq UKJ IJ0Ut'l..l U'EqJ[l. ·,(.,, a,p JlUOJ1' srnmnnod dn llu1~01d •;;;.d-e.Jspue[ ueq.1n :np ;,s:uµ Ol J~lRII\.JO SdWtl{OA Jofi.t~( ~Eim!) SULIO)-SU~P.J u21qN\_ 'l[tgU~BJ WOJJ fil[ns:;;u .IJ"OULU Jcl-JBh\UUOlS. ·uopnnod ..:IJOlHU ucq.m pU13 Jall!hiUUOlS :UO~ln(10d .;n1nos 1u,od.uou JO '5<n!-\l 011'!:) a.1-e ~.I~lfL• ·uo~1nnod ~;;}JJfiOS lU!Od-uou,, p.l[lt!J s,nup;nuo-s s~ uoµnuodJo ;;:id-{] !i!Q.L "!QOf .3up11~d pue s.>1is uon::,n.nsuo:> 'spoo1.poqqjj'!a,u 'staa.ns A.:)F, WOJJ S";:}lUOJ uoiinnod J;;'ll(~A\. JO .;;,:,.mos 1sd.8'Jn1 aq1 'lJl?J ll[ -51ue1d 1ua-unI:t:u1 .:1:?iP_,M;:J!l p1rn i;i~pOPP.,l sv. rpn!o!: ~;:i:1,mm :->Y{:-l;:i<ls W01J sarnO:) Sf:;z,.113 UI:q.In U! UO!llll["Dd .1;:lj.Bh\JO ~,mos isafuer ~1111e41 ••a!laq a1doad lSOf~ • t /llOU)I no,1. P!U PA2017-045 Follow these simple steps to help reduce water pollution: Household Activities •no not rinse spills with water. Use dry cleanup methods such as applying cat litter or another absorbent material, sweep and dispose ofin the trash~Take items such as used or excess balLeries, oven cleaners, automotive fluids, painting products and cathode ray tubes, like TVs and computer monitors, to a Household Hazardous Waste Collection Center (HHWCC). •For a HHWCC near you call (714) 834-6752 or visit wwi1•.odandfilkcom. •no not hose down your driveway, sidewalk or patio to the street, gutter or storm drain. Sweep up debris and dispose ofit in the trash. Automotive •Take your vehicle to a commercial car wash whenever possible. Hyon wash your vehicle at home, choose soaps, cleaners, or detergents labeled non-toxic, phosphate-free or biodegradable. Vegetable and citms-based products are typically safest for the environment. •no not allow washwater from vehicle washing to drain into the street, gutter or storm drain. Excess wash water should be disposed ofin the sanitary sewer (through a sink or toilet) or onto an absorbent surface like your lawn. •Monitor your vehicles for leaks and place a pan under leaks. Keep your vehicles well maintained to stop and prevent leaks. •Never pour oil or antifreeze in the street, gutter or storm drain. Recycle these substances at a service station, a waste oil collection center or used oil recycling center. For the nearest Used Oil Collection Centercall l-800-CLEANUP or ,isit www.l800c1eanup.org. Pool Maintenance •Pool and spa water must be dechlorinated and free of excess acid, alkali or color to be allowed in the street, gutter or sto1m drain. •·when it is not raining, drain de&iio1inated pool and spa water directly into the sanitary sewer. •some cities may have ordinances that do not allow pool waler to be disposed ofin the storm drain. Check with your city. Landscape and Gardening •no not over-water. Water your la11n and garden by hand to control the amount of water you use or set inigation systems to reflect seasonal water needs. lfwater flows off your yard onto your driveway or sidewalk, your system is over-wateiing. Periodically inspect and fix leaks and misdirected sp1ink.lers. •no not rake or blow leaves, clippings or pruning waste into the street, gutter or storm drain. Instead, dispose of waste by composting, hauling it to a pl'tmitrf'd landfill, or as ii;reen wa~re Through your city's recycling program. •Follow directions on pesticides and fertilizer, (measure, do not estimate amounts) and do not use if rain is predicted within 48 hours. •Take unwanted pesticides to a HHWCC to be recycled. For locations and hours of HHWCC, call (714) 834-0752 or visit www.oclandfills.com. Trash •Place traSh and litter that cannot be recycled in securely covered trash cans. •whenever possible, buy recycled products. •Rememb!'r: Reduce, Reuse, Recycle. Pet Care •Always pick up after your pet. F1ush waste down the toilet or dispose of it in the trash. Pet waste, if left outdoors, can wash into the street, gutter or storm drain. •lfpossible, bathe your pets indoors. If you must bathe your pet outside, wash it on your Imm or another absorbent/permeable surface to keep the wash water from enteiing the su·eet, gutter or sto1m drain. •Follow directions for use of pet care products and dispose of any unused products at a HHWCC. PA2017-045 ATTACHMENT C Reference Exhibits of O.C. Technical Guide Document PA2017-045 ~-,..,.------~ ..... o Orange County Precipitation Stafions --24 Hoor, 85th Percentile Rainfall (Inches) ~ ------24 Hour, 85th Percentile Rainfall (Inches) -Extrapolated c'.] Cily Boundaries Rainfall zones Design Capture Storm Depth (Inches) ~0.65" lli2J 0.7 C]0.75 C]0.80 ~0.85 .0.90 i!III0.95 !ffl!j1.00 .1.10· t,.Joje: Events defined as 24-hoor peoods: (cafendar days} 'Mlh gt eater than O, 1 itlc:hes of ralnt:itt. For areas. .outG"m! o1 available data coverage, prof!!:SS!o.naljudgme:nt shaD be applod. @il I!!! ;,,-; IQ) N d d ~ !b ;,,-; ~ ~ [ill,! l?,,l} t~ ~ (g} ll= ~=,le; © dl !!!di g (,"Jl ~ (!JlJ! d di ©)'~Ll ~~© ~~ lg @:: ~ ©O l!!I] ll= j 8 lU "' g fl jl HI lWf dot ~{ ft"~ 1.1.,,i -XVl-1 PA2017-045 Hydrologic Soll Groups A Soils Source: Soils.: Nilltural Resources Conservation SeMC8 (NRCS) Soil Survey -ooil_ca678, Orange County & Wostom Riveroide Date of pul>lcation: =a http://websailsurv-ey.nrcs.usda.gmr/appJHomePage-.htm •I '~ ~ «:i!WJ ©)@a d~ ©© @:: @::: ll;iil(:il ii"(@ :li;d @i) © i(@ ~ ~ ~~ ~ e=, ~ 11@ ©~ lll© !!!di= ©]~ ~@:: c,;z !d @:: = <[ u © !!!,, ~ d 0 "' C) I Of lwr A ~ [ ~i XVl-2a PA2017-045 ] g 8 ; ",l. !, i i ~ I § ~ ~ ~ ~ i " Susceptibility !W;W Potential Areas of Erosion, Habitat, & Physical Strucrure Susceptibility Channel Type Eartll (Unstable) -Earth (Stabilized) -Stabilized Tidel Influence -= Mean High water line (4.28') Water Body D Basin CJ Dam EJ Lake CD Reservoir Other Lands -AirportlMNHary l ! Santa Aria Rivtr --· Sotlt1.0rs,gc, c.,.,ntv t § i " ~~~~~~---~:"'::'_ ~00!§110™ilOOO&OOW ™il&~ @(!JJ@,{J~©'TI' 'IT'© f?OJJ[IDr[]{]~lli! [;J~WO@O@OO ' -,----,----~,--r·-·-.... -.• -.., C -.--.-~---~" -,-•~·' eo 4,000 e.1100 Feet 16,000 @il ~ '!ff/) ~ = l[JlJ] ~ fill:: "'-I , IF ;g ~ WI "1 r@ d ~ I= ~ = @l; (!6j) ~©~ @j] @. © ~~!bi) @, l!!!!I I= l!!!!I ;g fiE: g © W! @, ~ ~ WJ l!!!!I ;,g: ©J ~ ~ ;a.,,: (g] :,.;;: ~ MdJ ;a.,,: (Q) :li': '€I ~ @i) d MdJ @;; @.. ©J ~ filk o!l; "1ii: l!!!!I ~~t;; fi @;; ~ (Q) ~ • 8 \I! (WE ii $ In! 9i '~1: L 0:~ u ~ I XVl-3d PA2017-045