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HomeMy WebLinkAbout1989-06-20; City Council; 10075; Approve of construction of Agua Hediona SewageCI7~ OF CARLSBAD - AGENDA BILL MTG. 6-20-89 PEPT MP TRIE: APPROVAL OF PLANS AND SPECIFICA- TIONS AND AUTHORIZATION TO BID CONSTRUCTION OF THE AGUA HEDIONDA PUMP STATION PROJECT 3303 o Hi g <£.0_ O. O 5 uzS Oo RECOMMENDED ACTION: Adopt Resolution No. ffif ~ t%"(0 approving plans and specifications and authorizing the City Clerk to advertise for bids for the construction of improvements and capacity expansion of the Agua Hedionda Sewage Pump Station, Project No. 3303. ITEM EXPLANATION; The Agua Hedionda Sewage Pump Station is located on the south side of the Agua Hedionda Lagoon immediately north of the SDG&E Encina facility. This pump station sewers discharge from the City of Vista and the northern sections of the City of Carlsbad to the Encina Water Pollution Control Facility. The existing Agua Hedionda Pump Station is owned jointly by the City of Vista (61.5%) and the City of Carlsbad (38.5%), but operated by Encina. The present 24.5 MGD (million gallons per day) capacity is inadequate for present peak wet weather flows. By replacing two (2) small obsolete pumps, the sewage pump station's capacity can be increased to 34.5 MGD. The City of Carlsbad Sewer Master Plan forecasts the peak flow at build-out to be 30.7 MGD. The additional capacity provides a desirable margin of safety in the event flows exceed the forecasts. The improvements to the Agua Hedionda Sewage Pump Station include two (2) new 8,000 gallon per minute pumps with variable frequency motor drives, a new system control panel, enhanced remote monitoring and emergency alarms, a mechanical bar screen to remove debris, two (2) new standby generators, and a 400,000 gallon overflow basin. These improvements will expand the station's capacity to meet future demand, reduce maintenance costs, and improve reliability. Additionally, the overflow basin will preclude discharge into Agua Hedionda Lagoon in the event of an emergency or equipment breakdown. An agreement between the City of Vista and the City of Carlsbad regarding sewer facilities under joint ownership is currently being drafted and circulated for approval. The agreement assigns project management responsibilities, allocates the share of construction costs, and establishes consistent post-construction capacity rights for each City. Staff anticipates presenting the agreement to the Council at the same time the award of the pump station construction will be reviewed by the Carlsbad City Council. The Vista City Council will review and approve the agreement in advance of this date. Page 2 of Agenda Bill No. GENERAL PLAN CONSISTENCY: The upgrade of the Agua Hedionda Sewage Pump Station has been previously approved by the Planning Commission as being consistent with the City's General Plan as an element of the 1988-89 City Capital Improvement Program Budget. ENVIRONMENTAL REVIEW; The Planning Director issued a Negative Environmental Declaration for the project on December 7, 1988 finding that the construction of the sewage pump station improvements and spill containment basin does not have a significant impact upon the environment and is made pursuant to the California Environmental Quality Act (CEQA) and the Environmental Protection Ordinance of the City of Carlsbad. A copy of the Negative Declaration was filed with the State Clearinghouse for review of other agencies and was cleared on January 6, 1989. COASTAL DEVELOPMENT PERMIT; The California Coastal Commission issued Permit No. 6-89-57 on April 14, 1989 approving construction of the Agua Hedionda Sewage Pump Station. PROPOSITION H REQUIREMENTS; The City's proportionate cost of the project is estimated to total $436,128 of the $1,132,800 total project estimated cost. The City's contributions to this project originate from sewer connection fees which is a source of funds exempt from the Proposition H capital improvement project spending limitations. FISCAL IMPACT; On May 24, 1988, the City Council approved a transfer of $200,000 in funds from project account No. 512-820-1850-3182 (Vista/ Carlsbad Trunk Line) to project account No. 512-820-1850-3303 (Agua Hedionda Sewage Pump Station). An additional appropriation of $150,000 was reported in the 1988-89 Capital Improvement Program Budget. The estimated project is as follows: Construction $820,000 Construction Contingencies (15%) 123,000 Prepurchase of Pumps 64,124 Design and Inspection 109,100 Project Administration 12,000 Plan Check 1,868 Bid Documents and Misc. 2.708 TOTAL EXPENDITURES $1,132,800 Page 3 of Agenda Bill No. City of Vista share (61.5%) $696,672 City of Carlsbad share (38.5%) 436.128 TOTAL CONTRIBUTIONS $1,132,800 It should be emphasized that the above costs are estimates prior to competitively bidding the construction of the project. Actual costs will be known following the receipt of bids. Staff will make a recommendation to the Council regarding additional funds, if required, at the time of construction award and approval of the Carlsbad/Vista agreement. EXHIBITS : 1. Location Map 2. Resolution No. Qr 'On approving plans and specifica- tions and authorizing the City Clerk to advertise for bids for the construction of the upgrade to the Agua Hedionda Sewage Pump Station. 3. Project plans, specifications and contract documents on file in the Municipal Pron ects Department . LOCATION MAP HIGHWAY 78 AQUA HEDIONDA LIFT STATION AIRPngj ROAD PROJECT NAME AGUA HEDIONDA LIFT STATION PROJ. NO. 3303 EXHIBIT 1 1 RESOLUTION NO. 89-186 2 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, APPROVING 3 PLANS AND SPECIFICATIONS, AND AUTHORIZING THE CITY CLERK TO ADVERTISE FOR BIDS FOR 4 THE CONSTRUCTION OF THE AGUA HEDIONDA SEWAGE PUMP STATION 5 6 WHEREAS, the City Council of the City of Carlsbad, 7 California, has determined it is necessary and in the public 8 interest to construct an upgrade of the Agua Hedionda Sewage 9 Pump Station; and 10 WHEREAS, plans and specifications for the furnishing of 11 all labor, materials, tools, equipment, transportation and other 12 expenses necessary or incidental for said projects, have been 13 prepared and are on file in the Municipal Projects Department of 14 the City of Carlsbad; and 15 WHEREAS, the City Council of the City of Carlsbad, 16 California, has appropriated funds for the construction of said 17 projects. 18 NOW, THEREFORE, BE IT RESOLVED by the City Council of the 19 City of Carlsbad, California as follows: 20 1. That the above recitations are true and correct. 21 2. That the plans and specifications as presented are 22 hereby approved. ^23 /// 24 /// 25 /// 26 /// 27 /// 28 /// 1,, 3. That the City Clerk of the City of Carlsbad is 2 hereby authorized and directed to publish, in accordance with 3 law, Notice to Contractors inviting bids for the construction of 4 the above referenced sewage pump station. 5 6 PASSED, APPROVED AND ADOPTED at a regular meeting of the 7 Carlsbad City Council held on the 20 th day of June , 1989 8 by the following vote, to wit: 9 AYES: Council Members Lewis, Mamaux & Pettine 10 NOES: None 11 ABSENT: Council Members Kulchi^'S/tirsor 12 13 14 "cfAUDE A. LEtflS/ Mayor 15 ATTEST: 16 inL -J> 17 AI/TIIEA- L. RAUTENKRANZ, Cit> Clerk 18 (SEAL) 19 20 21 22 23 24 25 26 27 28