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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 1 758108\317247.2 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 2 755\08\317247.2 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 3 7581081317247.2 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. 4 758WM 17247.2 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. 5 7581081317247.2 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 6 758MU17247.2 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. 7 758w8v17247.2 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. g 758\081317247.2 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 9 7581081317247.2 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 U1 a'M N91 l NO" A5406B Yon "9 lkS A ,P.O.f 2 -CMttixaY,, CA91313Y - wmvx.lmmY,darynq PmY. Na. seoT Reader Ce9TdYFreel�M6 Phone 0 "11) 751 -5043 Far r - !1113_' -1.136 !f eb: (ddress 111 N es {Ylira -U11• W /•J Ih .1faffink.lddrosr P. O. BAs 12011 C'ost00.thaa. CA 41628 -111Nf Street.lddress -- Fair Drive Costa .1 fra00. C.4 91616 -6520 Board oj'birenom Irii'ne.tii:.aer Grc•Q W0,04hrde ir• Perri James Fern'ntan f),rr Ilin'!innrnq e � 7'•wr.d.w NaY'I5Y•Yr r�.l•Y•• ♦TrALcHKENr I 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 2 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 3 ' 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 C ARTH 7 X4 L1i, Pty, NG!STATI �i� •� 4 / it rl 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 R Fmwe4M �„vlV "4wAMOf WIN Ham i ,qg ^- C 0 1 Q rr+r AW at s,,w viaw old, I I "Goo %*Wt* 2p -nf J was ev � '!�', sr. i. n� r1A�lflNA�� 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