HomeMy WebLinkAbout09 - Sewer Infrastructure ImprovementsCITY OF NEWPORT BEACH
CITY COUNCIL STAFF REPORT
Agenda Item No. 9
October 9, 2007
TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: Public Works Department
Michael Sinacori
949 - 644 -3342 or msinacori@city.newport- beach.ca.us
SUBJECT: SEWER INFRASTRUCTURE IMPROVEMENTS - APPROVAL OF AN
AGREEMENT WITH ORANGE COUNTY DEVELOPMENT AGENCY
AND COSTA MESA SANITATION DISTRICT
RECOMMENDATION:
Approve an Agreement with Orange County Development Agency (OCDA) and Costa
Mesa Sanitation District (CMSD) releasing the City from any obligation for
improvements to the Santa Ana Heights area sanitary sewers.
BACKGROUND:
On December 9, 1996, the City Council approved a three party agreement between the
City of Newport Beach, Costa Mesa Sanitary District (CMSD), and the Orange County
Development Agency (OCDA) for improvements to the Santa Ana Heights area sanitary
sewers. In 1990 BSI Consultants conducted a study and prepared The Santa Ana
Heights Redevelopment Project Area Comprehensive Infrastructure Plan, which
identified certain deficiencies in the existing CMSD system and gravity sewer main. The
OCDA redevelopment approvals required the upgrade of certain facilities including a
pump station, sewer force main, and gravity sewer to connect with the OCSD Von
Karman Avenue trunk sewer main. These improvements are needed to provide the
additional capacity generated by the redevelopment of the Santa Ana Heights area.
On August 22, 2000, the City Council executed an amendment to the three party
agreement which adjusted the location of the proposed Bristol Street Pump Station,
abandoned a City sewer on Birch Street, and allowed the connection to the proposed
Costa Mesa Sanitary District gravity sewer.
In contemplating taking over the water and sewer services in this area upon annexation,
the City desired the assurance that the facilities were constructed to City standards.
However, it was determined CMSD would continue providing maintenance for sewer
service within Santa Ana Heights.
Sewer Infrastructure Improvements — Approval of an Agreement with OCDA and Costa Mesa Sanitation District
September 25, 2007
Page 2
DISCUSSION:
Since the publication of the BSI Consultants study, CMSD has re- evaluated the proposed
improvements and have determined alternative methods that would be less costly and
disruptive to the area. In addition, the new proposal would require CMSD obtain an
Encroachment Permit for only a short section of sewer work to be preformed on South
Bristol Street between Campus Drive and Birch Street.
Considering CMSD will continue maintaining service in the area, there is no longer a
reason for the City to be involved with these improvements. By the terms of the original
three party agreement, it is required to execute a new agreement to relieve the City from
the previous obligations. Staff recommends approving the attached agreement releasing
the City from any responsibility for these improvements.
Environmental Review:
Not Required.
Funding
There is no funding implication in executing this agreement.
Prepared by:
M' h DO, P.E.
Assistant City Engineer
Submitted by:
St en G. Badum
ublic Works Director
Attachment: Agreement with OCDA and CMSD
AGREEMENT BETWEEN THE COSTA MESA SANITARY DISTRICT, ORANGE
COUNTY DEVELOPMENT AGENCY AND CITY OF NEWPORT BEACH
REGARDING SEWER IMPROVEMENTS IN THE
EAST SANTA ANA HEIGHTS REDEVELOPMENT AREA
(Bristol Street Sewer Main)
This Agreement, is made and entered into this _ day of 2007
by and among the COSTA MESA SANITARY DISTRICT (CMSD), a California sanitary
district established pursuant to Health and Safety Code sections 6400 et seq.,.the ORANGE
COUNTY , DEVELOPMENT AGENCY (OCDA), a California redevelopment agency
established pursuant to Health and Safety Code sections 33000 et seq., and the CITY OF
NEWPORT BEACH (CNB or City), a municipal corporation and charter city. The CMSD,
OCDA and CNB shall be hereinafter collectively referred to as the "Parties." The Parties enter
into this Agreement with reference to the following facts:
RECITALS
WHEREAS, the East Santa Ana Heights area is an area formerly within the
unincorporated area of the County of Orange that is currently in need of additional sewer service;
and
WHEREAS, the East Santa Ana Heights area is now located within the CNB, having
been annexed to said city in July of 2003; and
WHEREAS, the CMSD is a sanitary district that provides sewer service to the City of
Costa Mesa but also provides services to portions of the unincorporated county area and the
CNB with existing sewer facilities in place to serve said East Santa Ana Heights area; and
WHEREAS, CMSD, CNB and OCDA, entered into Agreement No. D96 -162 on January
14, 1997, and an amendment thereto on October 24, 2000, specifying the need for CMSD to have
expanded sewer facilities to serve the rezoned East Santa Ana Heights area, which area also is
located in OCDA's Santa Ana Heights Redevelopment Project area. Under Agreement No. D96-
162, the Parties agreed to cooperate in the design and construction of specific sewer
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infrastructure improvements in the Santa Ana Heights area, including a new sewer pumping
station known as the "South Bristol Street Pump Station "; and
WHEREAS, prior to the construction of the proposed South Bristol Street Pump Station
envisioned in Agreement No D96 -162, the Manager District/Engineer for the CMSD prepared an
Updated Sewer Flow Study & Cost Analysis in February 2003, attached hereto as Attachment I
(hereinafter referred to as "2003 Updated Sewer Flow Study "). This study determined that the
proposed sewer pumping station that was to be constructed under Agreement No. D96 -162 was
no longer necessary due to the following: 1) CMSD's installation of improvements throughout
the downstream portions of the existing sewer system; and 2) the planned replacement of the
.existing 8 -inch sewer line with a new 15 -inch gravity sewer main in South Bristol Street from
Birch Street northwesterly approximately 2,140 feet. Said improvements and the reasons
therefor are more thoroughly set forth in the 2003 Updated Sewer Flow Study; and
WHEREAS, the CMSD Board of Directors approved the 2003 Updated Sewer Flow
Study at its regular meeting on May 14, 2003,, and again on December 10, 2003; and
WHEREAS, the newly identified scope of work for the South Bristol Street sewer
improvements outlined in the 2003 Updated Sewer Flow Study represents a significant cost -
saving alternative to the OCDA; and
WHEREAS, the newly identified scope of work in the 2003 Updated Sewer Flow Study
will no longer require construction of more than 4,000 feet of sewer main in Birch Street from
Bristol Street northbound to MacArthur Boulevard, thus eliminating the need for the CMSD to
conduct the cleaning, operation and maintenance activities on the proposed Birch Street sewer
main that had been previously contemplated in Agreement No. D96 -162, as amended; and
WHEREAS, pursuant to the 2003 Updated Sewer Flow Study, the CMSD will not be
required to construct and maintain an additional sewer pumping facility, as contemplated in the
previous Agreement No. D96 -162; and
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WHEREAS, the CMSD Manager/District Engineer prepared an updated cost analysis of
the improvements recommended in the 2003 Updated Sewer Flow Study, which was dated
August 2006 and is attached hereto as Attachment 2; and
WHEREAS, the CMSD Board of Directors and the Orange County Board of Supervisors
have each made the findings required by California Health & Safety Code section 33445 that the
Agency payments for the Project (as defined below) are of benefit to the Santa Ana Heights
Redevelopment project area, that there are no other means of funding the Project, that the Project
will assist in eliminating one or more conditions of blight in the Santa Ana Heights
Redevelopment Project Area and that the Project is contemplated by OCDA's implementation
plan; and
WHEREAS, all Parties will realize substantial savings from this Agreement and the
public interest will be served thereby; and
WHEREAS, CMSD will conduct such environmental analysis and make such findings as
are required by Iaw and shall obtain an encroachment permit from the City to build the sewer
improvements along the portions of the Project Area owned by the City or over which the City
has a public right -of -way easement;
NOW, THEREFORE, IT IS AGREED, by and between the Parties, hereto that:
1. Incorporation of Recitals. The above -written Recitals provide the factual basis
underlying and supporting the Parties' desire to enter into this Agreement.
2. Prior Agreements. The previous Agreement No. D96 -162, and the October 24,
2000 Amendment thereto, are hereby terminated and superseded by this Agreement.
3. PrJect. The Project consists of expanding the existing Bristol Street Sewer
System, as outlined in the "2003 Updated Sewer Flow Study and Cost Analysis," attached hereto
as Attachment 1 (hereinafter referred to as the "Sewer Improvements" or the "Project "). The
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Sewer Improvements will be constructed along South Bristol Street and portions of Irvine
Avenue on land that is within either the City's or the County of Orange's public right -of -way.
4. Duties of the CMSD.
A. The CMSD agrees to provide design phase services, supervision of contract
bidding and award, contract administration and building inspection services for the Project.
CMSD agrees to provide said services in accordance with the following schedule:
1. CMSD shall complete the Project design within 270 days of the date that
this Agreement is fully signed and delivered to the CMSD;
2. CMSD shall award the construction contract within 90 days of receiving
the completed project design;
3. Construction of the Project shall be completed within 180 days of signing
the construction contract and the posting of all required insurance and bonds.
B. CMSD further agrees to prepare the plans, specifications and estimates for the
proposed sewer improvements for an amount not greater than the balance remaining for design
phase allocation in Agreement No. D96 -162. As of the time of execution of this Agreement, said
balance is approximately $59,123. CMSD agrees to provide three sets of project plans and
specifications to OCDA for review and approval prior to advertisement for bid.
C. CMSD shall be the lead agency for purposes of the California Environmental
Quality Act (CEQA) and, in such capacity, shall conduct such environmental review as CEQA
may require. CMSD shall be responsible for all CEQA costs and. expenses. CMSD
acknowledges and understands that OCDA has obligations as a responsible agency under CEQA.
Consequently, OCDA's funding for the construction of the Project shall be conditioned upon
OCDA being able to make the findings required under CEQA for a responsible agency.
D. CMSD shall obtain all necessary permits for construction of the Project from
federal, state and local authorities. CMSD shall be liable for the cost and expense of obtaining
all necessary permits.
E. CMSD agrees to obtain an Encroachment Permit from the City for work within
the CNB right -of -way
F. CMSD agrees to require that the contractor selected to construct the Project shall
post a Faithful Performance Bond and a Labor and Materials Bond in an amount sufficient to
cover the cost of completing the Project.
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G. Upon completion of the Project, CMSD shall assume the ownership, operation,
and maintenance responsibility for the Seaver Improvements.
5. Duties of the CNB. The CNB agrees to be removed from the approval process for
the contemplated sewer improvements upon signing of this Agreement. However, CMSD still
must obtain an Encroachment Permit from the City, as outlined above.
6. Duties of the OCDA. Subject to the provisions of this Agreement, the OCDA
agrees to provide funding for the services described in Paragraphs 3 and 4 above and the Project
construction costs upon being provided with an invoice therefor.
7. Estimated Construction Cost. The estimated construction cost of the Project
described in Paragraph 3 is $1,147,125.
8. CMSD Cost of Service. The costs for the construction administration and
inspection services, including construction staking, for the Project shall not exceed $114,712.50.
CMSD costs shall be billed at the following rates:
a. Engineer $ 85.00 per hour
b. Two-person survey crew $220.00 per hour
C. Three- person survey crew $295.00 per hour
9. Approval of Construction Contract Amount. As noted above, CMSD has
estimated that the construction costs for the Project will be $1,147,125. CSMD will solicit bids
for the construction of the Project. The award of the construction contract shall be subject to the
approval of OCDA as follows: After soliciting bids, CMSD shall notify OCDA of the amount of
the proposed construction contract. If the proposed contract is in excess of 5% above
$1,147,125, OCDA shall notify CMSD to determine if it will fund the excess. Nothing in this
Agreement. obligates OCDA to agree to fund construction costs for the Project in excess of 5%
above $1,147,125. If OCDA decides not to fund the excess, CMSD may agree to fund the
excess. If not, then OCDA may terminate this Agreement.
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10. Award of Contract. Assuming OCDA has approved the construction contract
pursuant to Section 9 above and the funds to pay the construction costs have been committed by
OCDA and, if necessary, CMSD, upon award of the construction contract by the CMSD Board
of Directors, CMSD shall send a copy to the OCDA of the construction contract with a copy of
the agenda report showing competitive bidding. The information submitted to the OCDA shall
include a copy of the successful bidder's bid result and any relevant backup information. Should
additional sums be required for change orders above 5% above the base contract amount, CMSD
shall be responsible for the additional sums necessary for the change orders. However, OCDA
may provide additional funds for change orders, if CMSD submits a prior written request for
approval of the change order to OCDA and OCDA determines, in its sole discretion, to fund the
change order costs. If not approved by OCDA, CMSD may nevertheless implement any change
order that does not materially change the Project so long as CMSD provides the funding for the
change order work.
11. CMSD Contract Administration. Pavment and Reimbursement. CMSD shall
administer the contract and make progress payments to the contractor for its work. Upon review
and approval of invoices by the OCDA, OCDA shall reimburse the CMSD for all invoices within
sixty (60) calendar days of receipt. The CMSD shall reimburse the OCDA for excess funds
collected from the OCDA within 60 calendar days of recording the Notice of Completion. In
addition, the CMSD agrees to submit to OCDA an accounting report containing the following:
a. Copies of all construction progress payments made or invoices paid to contractors
and/or consultants where applicable, with copies of construction administration and inspection
service billings.
b. Copies of all construction change orders approved and all backup documentation
(including all change orders for work or bid items deleted from or credited to the project).
C. All items shall be summed and totaled to equal the amount paid by OCDA, less
any refund amount.
12. Mutual Indemnification. To the fullest extent permitted by law, CMSD and
OCDA agree to save, indemnify, defend and hold harmless each other from any and all liability,
claims, suits, actions, arbitration proceedings, administrative proceedings, regulatory
proceedings, losses, expenses, or any injury or damage of any kind whatsoever, whether actual,
alleged or threatened, actual attorney fees, court costs, interest, defense costs and expenses
associated therewith including the use of experts and any other costs of any nature without
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restriction incurred in relation to, as a consequence of, or arising out of, the performance of this
Agreement, and attributable to the fault of the other or others. Following a determination of the
percentage of fault and or liability by Agreement between the parties or a court of competent
jurisdiction, the party or parties responsible for liability to the other or others will indemnify the
other party or parties to this Agreement for the percentage of liability determined as set forth
this section.
13. Indemnifications and Insurance Related to Construction. Notwithstanding said
mutual indemnity obligation set forth in Section 12 above, CMSD agrees to ensure that the
contractor selected for the Project obtains adequate insurance covering all risks associated with
construction of the Project and that the contractor agrees to indemnify and defend OCDA, the
County of Orange, the CNB and the CMSD (hereinafter collectively referred to as the
"Indemnified Parties ") from any and all liability arising out of its work on the Project, save and
except that caused by the active negligence of the Indemnified Parties. CMSD agrees to require
that. the contractor maintain Comprehensive General Liability insurance in an amount not less
than two million dollar ($2,000,000) per occurrence for bodily injury, personal injury, and
property damage, including without limitation, contractual liability. If commercial general
liability insurance or other form with a general aggregate limit is used, either the general
aggregate limit shall apply separately to the work to be performed under this Agreement, or the
.general aggregate limit shall be at least twice the required occurrence limit. CMSD also agrees
to ensure that the Contractor maintain automobile insurance covering bodily.injury and property
damage for all activities arising out of or in connection with work to be performed, including
coverage for any owned, hired, non -owned or rented vehicles, in an amount not less than one
million dollars ($1,000,000) combined single limit for each occurrence. In addition, the
following provisions shall be required:
A. OCDA, County of Orange, and CNB shall each be named as an additional insured
on an endorsement to said policies. An additional insured endorsement evidencing that the City
is an additional insured shall accompany the Certificate of Insurance. CMSD shall not allow
contractor to commence work on the Project until such insurance and endorsements are obtained
in accordance with the requirements of this section.
B. All insurance policies required to be obtained by the contractor shall be primary
insurance, and any insurance maintained by the City of Newport Beach and County of Orange
shall be excess and non - contributing with insurance provided by these policies. An endorsement
evidencing that the contractor's insurance is primary and non - contributing shall specifically
accompany the Certificate of Insurance for the Commercial General Liability.
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14. Amendments. No alterations or variations of the terms of this Agreement shall be
valid unless made in writing and signed by the Parties hereto and no oral understanding or
Agreement not incorporated herein shall be binding on any of the parties hereto.
15. Successors and Assigns. The terms and provisions of this Agreement shall be
binding upon and inure to the benefit of the Parties hereto and their successors and assigns.
16. Entiret . This Agreement contains the entire agreement between the Parties with
respect to the matters provided for herein.
17. Severability. If any part of this Agreement is held, determined or adjudicated to
be illegal, void or unenforceable by a court of competent jurisdiction, the remainder of this
Agreement shall be given effect to the fullest extent reasonably possible.
18. Binding Obligation. The Parties to this Agreement represent and warrant that this
Agreement has been duly authorized and executed, and constitutes the. legally binding obligation
of their respective organization or entity enforceable in accordance with its terms.
19. Governing Law and Venue. This Agreement has been negotiated and executed in
the State of California and shall be governed by and construed under the laws of the State of
California. In the event of any legal action to enforce or interpret this Agreement, the sole and
exclusive venue shall be a court of competent jurisdiction located in Orange County, California,
and the Parties hereto agree to and do hereby submit to the jurisdiction of such Court,
notwithstanding Code of Civil Procedure section 394. Furthermore, the Parties have specifically
agreed, as part of the consideration given and received for entering into this Agreement, to waive
any and all rights to request that an action be transferred for trial to another county under Code of
Civil Procedure section 394.
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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed
by their officers thereunto duly authorized on the date first written above:
APPROVED AS TO FORM:
By. "6
Aaron C. Harp, Asst. City Attorney
ATTEST:
LaVonne Harkless, City Clerk
APPROVE AS TO FORM:
By: aL - L�
Alan R. Bums, District Counsel
APPROVED AS TO FORM:
CITY OF NEWPORT BEACH,
A Municipal Corporation and Charter City
By:
Steven Rosansky, Mayor
COSTA MESA SANITARY DISTRICT (CMSD)
A Body Corporate and Politic.,
By: %--N
President
By:
Secretary
ORANGE COUNTY DEVELOPMENT AGENCY
A Body Corporate and Politic
BENJAMIN P. DEMAYO
COUNTY COUNSEL
By:
Chairman
By:
Deputy SIGNED AND CERTIFIED THAT A COPY OF
THIS AGREEMENT HAS BEEN DELIVERED
TO THE CHAIRMAN OF THE BOARD
By:
Darlene J. Bloom
Clerk of the Board of Supervisors of Orange
County, California
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CALIFORNIA ALL - PURPOSE ACKNOWLEDGMENT
State of California l
County of Orange } ss.
On September 13. 200 S before me,
Gala Nama and Tie Ofraer t(ax a11B Public "j
personally appeared Arthur Perry and Hobert ooten
Names) of Signer(s)
Plece Nola y Seal Above
® personally known to me
O proved to me on the basis of satisfactory
evidence
to be the person) whose namegi jdare
subscribed to the within instrument and
acknowledged to me that heWelthey executed
the same in kisMer /their authorized
capacity(ie and that by Wailher/their
signature son the instrument the persor{(s or
the entity upon behalf of which the person s
acted, executed the instrument.
WITNESS my hand and official seal.
9f4_2 pe�
Sgnalule of Notary Public
OPTIONAL
Though the information below Is not required by law, it may prove valuable to persons relying on the document
and could prevent fraudulent removal and reattachment of this form to another document.
Description of Attached Document
Title or Type of Document-
Document Date:
Signer(s) Other Than Named Above:
Capacity(ies) Claimed by Signer
Signer's Name:
❑ Individual
❑ Corporate Officer— Tifie(s):
❑ Partner — ❑ Limited ❑ General
❑ Attorney in Fact
❑ Trustee
❑ Guardian or Conservator
❑ Other:
Signer Is Representing:
Number of Pages:
RIGHT THUh78PRINT
OF SIGNER
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Casty Mesa SanitarN District
Updated Sewer Flow Stud)r
Cost Analysis
Project. #129
Bristol Street Sewer System
`u`
February 2003
Robin B. Hamers
1 Ianager/District Engineer
P`
L Purpose
The purpose of this updated sewer flow analysis and cost estimate is to take into
consideration the Costa Mesa Sanitary District (CMSD) projects that have been
completed or are in design and whether these projects suggests previously considered
solution to providing adequate sewer service to the east Santa Ana Heights area is now
the most cost effective solution. The successful completion of these projects changes the
economic balance between the alternatives studied to provide the sewer flow capacity to
adequately serve the ultimate build -out of the area
IL Background
The eastSants Ana Heights area is in unincorporated Orange County and also within the
boundaries of the Costa Mesa Sanitary District. As sewer provider for the area, the
Sanitary District has historically reflected in its sewer master plan that the existing server
system for the area was designed to accommodate the low density residential
development that originally existed in the area. Because of increased demand for air
travel and the expansion of the John Wayne Airport (JWA), the Sanitary District first
went on record in 1981 that major improvements to the system were needed to serve the
proposed commercial redevelopment of the area. Because the improvements were so
costly and unaffordable, the District recommended to the County that the property
owners beneflting from the land use change be responsible for the cost of providing the
additional server capacity.
In 1983 the Sanitary District prepared the Santa Ana Heights Sewer Study that analyzed
the existing and future development of the area and identifled the projects needed to
properly expand the system. As part of the John Wayne Airport Land Use Plan prepared
for the airport expansion, the County's consultant re- studied the sewer system and made
recommendations for improvements. The County sewer study performed by BSI
Consultants agreed with the CMSD study with respect to improvements required to
expand the m.
Both studies concluded that instead of expanding the existing system in place (identified
as Alternative 2), it was more cost effective to construct a new pumping station at the
intersection of Birch Street and Bristol Street Southbound and pump the flows across the
73 Freeway, along Birch Street, to a point of connection with an Orange County
Sanitation District trunk line in MacArthur Blvd (Alternative 1). A plan showing
Alternative I is attached and labeled Exhibit "A ".
III. Status of Project
The Costa Mesa Sanitary District, the City of Newport Beach, and the redevelopment
arm of the County for the Santa Ana Heights area, the Orange County Development
.1 Agency (OC A ), entered into a three party agreement for des ign and construction of the
Alternative 16cilities. The facilities are known as the Bristol Street Pumping Station,
Force Main and Gravity Sewers. The design phase was recently completed to a 90%
stage, and the plans, specifications, and estimates (PS&E) are ready for approval and
bidding. The estimated construction cost of Alternative I is shown in Exhibit "B" and is
$2.25 million.
IV. Change in Economic Balance
Since the 1983 study identifying Alternatives I and 2, various projects improving the
existing system have been completed or are in design. Certain facilities required
rehabilitation due to age, reconstruction to provide worker safety, or relocation due to
road widening projects. Just recently, the County notified the Sanitary District that Irvine
Avenue is planned for widening, which will require relocation of the District's Tustin
Pumping Stt�t'dt n. Because the relocation can be designed to include an expanded
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pumping station able to serve the Santa Ana Heights area in its future master plan
condition, the economic balance has swung in favor of expanding the one remaining
section of the District's system rather than constructing the Bristol Street Pumping
Station, Force Main, and Gravity Sewers. .
V. Improvements Required to Utilize Existing System — Revised Alternative 2
A review of each segment of the Alternative 2 facilities beginning from the downstream
end is as follows. The review includes whether the existing facility is adequate or
requires expansion to handle the redeveloped Santa Ana Heights areas. The results are
shown as Revised Alternative 2 in Exldbit' C" and the estimated constriction cost-is
shown in Exhibit "D".
1. Fair Drive Sewer
The existing 24" sewer main. has a capacity flowing full of 5.86 million galldns per day
(mgd) and the projected ultimate flow is 5.41 mgd. This flow is slightly above the
allowed design standard but below the capacity flowing full. This is an acceptable
.operating situation and no improvements are required.
2. Elden Pump Station Force Main
The 18" diameter transite line that was deteriorating was replaced with 18" ductile iron
pipe in two phases; Project # 130, 1,199 feet in 1994, and Project # 135, 1,093 feet in
1995.
3..Elden Pump Station
The original underground pumping station was built in 1956 and although considered
state- of- the-art at the time, it contained two features that were considered potential
significant safety hazards. The electrical controls were housed underground in a section
of the pumping station that would become inundated if the station failed Secondly,
access to the station was by a 20 foot vertical ladder, and a daily check of the station was
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' required. Under OSHA definitions, the station was considered a Confined Space and
required a t an crew and safety apparatus to access the station. To alleviate these
concerns, the District rebuilt the station in 1990 under Project #99 and converted it from a
wet -well dry-well station to a submersible station. The rebuilt station and force main are
sized to handle the ultimate flow from the Santa Ana Heights.
4. Tustin Force Main
The existing force main consists of 580 feet of 10" ductile iron pipe built in 1969 and
2,835 feet of 14" ductile iron pipe built in 1975. There have been two breaks in the 14"
force main; one in June 1996 and one in September 2001. During the second break the
pipe condition was analyzed and the deterioration was indicative of additional weakened
segments throughout the line. The 14" line is deteriorating from the outside because
there is no polyethylene wrap around the outside of the pipe to withstand the adverse soil
conditions. The pipe wall of the section removed was extremely thin and because there is
concern for the remainder of the pipe, a capital replacement project was approved as part
of the 2002 -2 . budget. The design of Phase I of the replacement will be starting in the
near future an ,w. include sizing to accommodate the master plan flows from the Santa
Ana Heights.
5. Tustin Pumping Station
The Tustin Pumping Station is the CMSD facility most impacted by the flows from the
east Santa Ana Heights area. The pumping station has little storage capacity and coupled
with high flows there is little time to respond to a power outage or other emergency. This
has been an on -going concern of the District.
Recently, the County of Orange notified the District that Irvine Avenue will be widened.
Because the pumping station is located in the parkway at the westerly comer of Irvine
Avenue and Mesa Drive, the widening project impacts the station. Studies of either
performing a substantial remodel or relocating the station were recently completed and it
was concluded that relocating the station across Irvine Avenue is the most desired
solution As t of the relocation, the CMSD can increase the storage capacity of the
station to accommodate the ultimate flows from the Santa Ana Heights area. The
Sanitary District budgeted $600,000 under Project # 168 for the relocation.
6. Two 12" Gravity Sewers along Santa Ana Delhi Channel
Attached as Exhibit "E" is an updated flow analysis of the two 12" parallel gravity
sewers along the Santa Ana Delhi Flood Control Channel. To accommodate the
increased flow from the east Santa Ana Heights area, the two 12" lines can be tied
together. The total flow into the lines of 1.56 mgd can be handled by the total capacity of
2.05 mgd. Although the total flow causes each pipe to flow at a level above design
capacity, each pipe will flow at an ultimate condition of less than full, which is
acceptable. The tie - across is a minor construction item and the cost is included in the
overall cost for Revised Alternative 2.
7. 8" Sewer Line in Bristol Street
Under the scenario of utilizing the existing system to handle the increased flow, the
existing 8" sewer in Bristol Street requires upsizing to 15 ". A study of Bristol Street
discloses there is no available area to relocate the line, therefore, the line must be
replaced in -place with the larger line. The limits of this work and the associated 12" line
tie -across are shown in Revised Alternative 2 in the attached Exhibit "C ".
V. Revised Costs to OCDA and Benefits to CMSD
As shown above, the Costa Mesa Sanitary District has improved or is improving over
half the existing system due to the reasons stated. These improvements have already
accommodated or can easily accommodate the master plan flow. Therefore, the
improvement cost to the OCDA for Revised Alternative 2 for utilizing the existing
system consists of upsizing the existing 8" line in Bristol Street to 15" and constructing
the tie - across of the two 12" lines along the flood control channel. This compares to the
previously selected Alternative 1 as follows:
Alt I - New Pump Station, Force Main & Gravity Lines $2.25 million
Rev. . 2 - Utilizing the existing system (upsizing 8" line) 0.78 million
Construction Cost Saving $1.47 million
The benefits to the Costa Mesa Sanitary District consist of not having to own, operate,
and maintain, a sewer pump station, and not having to own and maintain an 18" gravity
sewer that runs along. Birch Street in the City of Newport Beach. The CMSD owns 20
pumping stations and there is a significant on -going maintenance and operation costs for
each station. It is a significant benefit to the District not to own an additional station.
VL Conclusion
The master plan flows from the east Santa Ana. Heights area can be accommodated by
either upgrading the existing system, shown as Revised Alternative 2, or constructing an
entire news m redirecting the flows in a different direction, shown as Alternative 1.
Due to the a ended time frame of the project caused by a variety of reasons, such as the
Orange County bankruptcy and design considerations with the CNB over eventual
ownership of Alternative I facilities, approximately half of the existing system has been
upgraded or will be upgraded as part of already approved projects. Therefore, it is more
cost effective.to upgrade the last section of the existing system rather than build the new
system. The savings to the County is approximately $1.5 million and the savings to the
Sanitary District is one less pumping station and no additional gravity sewer to maintain.
VII. Recommendations
It is recommended the OCDA, the Costa Mesa Sanitary District, and the City of Newport
Beach, revise the Three Party Agreement to reflect acceptance of Revised Alternative 2
and the CMSD move forward with completing the plans, specifications, and construction"
I
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EXHIBIT "B"
ALTERNATIVE 1
COSTA MESBANITARY DISTRICT
234 E. 17th. St., Suite 205
Costa Mesa, CA 92627 (949) 548-1192
COST & QUANTITY ESTIMATE
PROJECT: CMSD PROJECT NO. 1112100.129 -
NO. 1ITEM
QUANTITY
UNIT PRICE
COST
1.1
18' VCP
3726 1..
5250.00
1931,500.00
1.2
12" VCP S
41 Lf.
5175.00
$7,175.00
1.3
SEWER MANHOLE
10 ea.
$350000
,000.00
1.4
MOVE GONFL CTING POR ON OF ST. 12" FORCE MAI
132 .f.
575.00
59900.00
1.5
NECT EXIST. 12" WSD SEWER FORCE MAI TON
1 ea.
000.00
$4.000.00
1.6
01N. EXIST. EWER MANHOLE & RECHANNEL BASE
1 ea.
$4,000.00
$4 000.00
1.9 1REMOVE
SEWER CLEANOUT & JOIN EXIST. SEWER FORCE Ik
1 ea.
$1,200.00
$1.200.00
EXIST. STORM -DRAIN
3 ea.
sm.00
$1,500.
1.14
OT LE EXIST. WATER MAIN
2 ea.
$500.00
51 000.00
1.15
.PLUG. DON EXIST. 8" VCP SEWER
1 Ls.
$1,000-00
$1.000 00
1.16'
INSTALL E & JOIN EXIST. SEWER LATERAL
$115M.00
$39.000.001
1.17
MOVE EXIST. SEWER MANHOLE & FILL W1 SAND CEMENT
12 ea.
:00
$6. .00
1.18,
a OUT
27 ea..
.00
$8.100.00
1.1,
Cl? DRAIN
40 Lf.
.00
.00
120
RC ..S RA N.
35 11
.00
,750.00
21
E'A
4 ea.
$750.00
$3,000.00
;. 22
CP_:
17 Lf.
$160:00
,720.00
.23
" .EWER•
1 ea.
5300000000,00
1. 4
T SEWER MANHOLE
lea.
$500.00
2.1
DIA. YELLOWMINE SEWER PIPE
71 Lf.
$175.00,
$12,425.00.
2.Z
DIA. YELLOWMINE FITTING AND CONST. THRUST
2 ea.
.00
00
3A
P MP STATI VALVE VAULT AND APPURTENANCES
i La.
$525,000.00
$525,000.00
38
FL AU LT AND APPURTENANCES
1 Ls.
$65,000.00
000.00.
3C
DRIVEWA PER CALTRANS ', X=3
2 �-
$2000.00
$4.000.00
3D
ALK
4675 s.f.
.00
123,375.00
3E
CURB
95 Lf.
$15.00
$4,425.00
3
CTRICAL & OOOR CONTROL PANEL
1 Ls.
535,000.00
$35,000.00
3G
HAIN UN ENCE
235 11
$10.00
2,350.00
3H
NK FENCE GATE
2 ea.
$30D.00
$60D.00
4.1
12" VCP SEWER
696 11
$350.00,
$243,600.00
4.2
SEWER MANHOLE
I ea.
$5000.00
$5,000.00
4.3
COAT SEWER MANHOLE
4 ea.
$600.00
1 $2,400.00
4.4
DROP STRUCTUREMUNCTION W /.PUMP STATION
1 I.$.
$1,500:00
$1,500.00
4.5
REMOVE INTERFERING PORTION OF EXIST. 8" VCP SEWER
657 11
$50.00
532,650.00
4:8
8" VCP SEWER OVERFLOW BYPASS
1 ea.
5500.00
$500:00
4.7
RECHANNEL MUST. MANHOLE BASE
13 ea.
$1,000.00
$3,000.00
T'S
PROTECT IN PLACE ALL TRAFFIC SIGNAL LOOPS
1 I.s.
$3,000-00
$3,000.00
4.9
INSTALL WYE & JOIN EXIST. 6 SEWER LATERAL
4 ea.
$400.00
$1 600.00
4.10
DROP STRUCTURE
1 ea.
$1000.00
$1,000.00
10% CONTINGENCY
$206,330.00
TOTAL
$2,250,000.00
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EXHIBIT "D"
REVISED ALTERNATIVE 2
COSTA MES ANITARY DISTRICT
234 E. 17th. St., Sufte 205
Costa Mesa, CA 92827 (949) 548 -1192
COST & QUANTITY ESTIMA'T'E
PROJECT: BRISTOL ST. SEWER SYSTEM
EIH ®TT "E"
FLOW STUDY & HYDRAULIC ANALYSIS
(� REVISED ALTERNATIVE 2
The purpose of this study is to revisit Alternative 2 of the Santa Ana Heights Sewer Study
(Project No. 109), which identifies improvements necessary to the existing system in order for it
to handle the ultimate flow.
A. BRISTOL STREET SEWER
A new replacement sewer in Bristol St. from Cypress to the existing siphon under the Santa Ana
Delhi Channel would need to be constructed to relive the overburdened existing 8" main.
Per BSI Report the ultimate flow for this reach is 1.123 cfs.
Q= k/nl7gM)S^0.5, where n=0.013. k-7=0.232 for pipe flowing '% full, S(exist)=0.0024
Quit =1.123 cis, then I1 =((1. 123x0 .013 /0.232Y0.0024^0.5)^0.375= 1.09'= 13.2"
New minimum 15" pipe is required
B. TWO 12" SANTA ANA DELHI CHANNEL SEWERS
Revised Flow Study from 12/17/86
Areas 1 and 3 consist of 44.9 ac. of low density residential, 13.3 ac. of medium density
residential.
Average flow Qave .=44.9x1545gpd +13.3x2525gpd=O.103 mgd
Peak Flow Qpeak= 1.82xQave.^0.92 -0.227 mgd
Storm Flow Qst.=(44.9+13.3)x800gpd=0.047 mgd
Qtotal -0.274 mgd=0.425 cfs
Area 2- sewer line northerly of OCFCD channel and westerly of Bristol St. siphon
Total flow of 0.56 mgd=0.868 cfs has not changed from original 12/17/86 sewer study
Line B- Santa Ana Heights Area
From BSI Report (03/15/90) total flow Qb =1.123 cfs
Total flow at the siphon on Bristol St. Qt=0.425+0.868 +1.123 =2.416 cfs
here am 2- 12"'pipes along Irvine Ave. south of the siphon.
he slope Of JLStmg 12" sewer lines S=0.0020
hen capacity of 12" pipe flowing full Qjra,ir- 0.463/nD^(8/3)S^0.5
x.013, D=19, S=0.0020
?12.fie=0.463/0.013(0.002)^0:5 =1.59 cfs.
tta fwf=1.5912= 0.80 cfs
rom King's Hydrology Manual, k=0.351 for Q=Qt/2= 2.416/2 =1.208 cfs,
hen D(depth of flow )/d(diameter of pipe)=0.65, and D=0.65
field Check of Current Operating Condition:
;asterly 12" sewer - D=4.5" (12/19/02)
Vesterly 12" sewer D=2.5" (12/19/02)
tristol Street 8" sewer- D= ( )
E .�
ATTACIMENT 2
CONSTRUCTION COST ESTIMATE
8/29/2007
COSTA MESA SANITARY DISTRICT
Contract Duration: 25
Month(s)
BRISTOL STREET SEWER REPLACEMENT
10
Week(s)
PROTECT NO. 129
s0
Day(s)
45,000
400
Hours
(MO)
(WK)
(HR)
Notes: I) Sewer unit cost includes excavation, dewatering, pipe material & intallation, and trench restoration.
2) Fees may vary due to unknown information, codes, and requirements of governing agenies.
3) Construction labor hours and fees based on Caltrans night work and requirements.
-t.
5
�1
1 IS
i mil L,
3'oTaT%j
1
Mobilization, demobilization, & cleanup
Bonds, insurance, & permits
Traffic watrol including preparation of plans for permit - _ _-
Ceotechnical services during wastructlon -- —
:.J
-1>.txAl'
45,000
2
1 1S
25,000
25,0010
3
1 IS
40,000
40,000
4
I IS
1 LS
_ 15,000
55,000
15,000
55,
5
Sewage flow diversion (mobllbation & setup) per detail below
6
Sewage flow diversion (rental & operation) per detail below
2S MO
18,860
47,15
7
Install 15 -inch VCP sewer main
2,200 IF
225
495,
8
Install (-inch VCP sewer laterals
4 EA
7,500
30,
9
Remove existing brick manhole and construct 72 -inch diameter concrete manhole
6 EA
15A00
90
10
Pont new manhole base & channel. Core drill and patch manhole walls.
2 EA
3,000
6,
11
Excavation and safety measures (trench shields & shoring)
2,200 LF
8
17,
12
Bristol - Pavement 2' grind and overlay using Asphalt Rubberized Hot Mix (ARHM)
30,000 SF
3
90,
13
Bristol - Install pavement striping (thaw plastic)
5,000 IS
I
5,
14
Bristol - Replace tmfHc signal loops
18 FA
500
91
IS
AutoPlex - Pavement 2- grind and overlay using Type M -C3-AR 4000 (12- fine mix)
3,000 SF
3
9,
16
AutoPlex - Replace existing concrete curb & gutter
150 LF
75
it
17
AutoPlex - Replace existing coucrete sidewalk replacement
200 SF
20
4,
18
AutoPlex - Repair landscape, irrigation, and related surface improvements
2,500 LS
1
2,
19
AutoPlex - Install pavement striping (conventional)
1,000 1S
1
1,000
!S- �,�.'
i�
,. .-:w`
_ - •C f Y � Y #.� Y ��'
f�i..
S _4> .K *�
" 'N• .T
its. Y` -S
@�e_a'a'i. 'R III
`"'r �-
°•
Notes: I) Sewer unit cost includes excavation, dewatering, pipe material & intallation, and trench restoration.
2) Fees may vary due to unknown information, codes, and requirements of governing agenies.
3) Construction labor hours and fees based on Caltrans night work and requirements.
-t.
5
yew { *
Sewage flow diversion (mobilization & setup) per detail below
1 IS
55,000
55,
Bypass Pump tympany mobilization & setup
1 IS
30,000
30,
Contractor excavation & installation of pump lines in trench (Bristol Street)
I IS
20,000
20,
Contractor coordination & assistance to pump tympany for pipe installation
l LS
5,000
5.
6
Sewage Bow diversion (rental & operation) per detail below
25 MO
18,860
47,
Pump #1 (eentrifigal. self priming, trailer ==red (Q = 500 gpm = 1.12 efs)
1 MO
5,000
5,
Pump #2 (centrlhgal, self printing, trailer mounted (Q = 500 gpm = 1.12 c(§)
1 MO
5,000
5,
Discharge line (HOPE) assuming two bypass setups (mmmurn 15W length each)
1500 FT/MO
2
3,
Suction line (Steel) & valves
1 MO
1,000
1,
Emergency phone dialer (cellular) & float system
1 MO
I-S001
1,5
Fuel consumption (assume 24 hr operation at 2 ga1Por at $3.50 /gal for diesel)
1 MO
3,3601
3,3
File: CMSD 129 Construction Cost REV 082707 COSTA MESA SANITARY DISTRICT
Worksheet: CMSD Engineees Cost Estimate Print: 8/29/2007