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Home My WebLink About2005-02-01; City Council; 17958; North Batiquitos Lift Station Improvements4 4B# 17,958 MTG. 2/01/05 CITY OF CARLSBAD -AGENDA BILL TITLE: APPROVING PLANS AND SPECIFICATIONS AND DEPT. HD. AUTHORIZATION TO ADVERTISE FOR BIDS FOR NORTH BATlQUlTOS LIFT STATION IMPROVEMENTS, CITY AT n a a w 8 a Q z 0 F 0 a J G Z 3 0 0 IEPT. ENG PACKAGE “B”, PROJECT NO. 3809-2 CITY MGR. RECOMMENDED ACTION: Adopt Resolution No. approving plans and specifications and authorizing the City Clerk to advertise for bids for improvements to North Batiquitos Lift Station, Package “B”, Project No. 3809-2. 2005-025 ITEM EXPLANATION: North Batiquitos Lift Station (NBLS) is located on the north shore of Batiquitos Lagoon at 7831 Gabbiano Lane in Carlsbad. It receives wastewater by gravity from the North Batiquitos Interceptor (NBI) sewer and pumps the flow westerly to the Encina Water Pollution Control Facility for treatment, see Exhibit “1”. The lift station has a pumping capacity of approximately 3.2 million gallons per day. The lift station facility also includes an emergency overflow reservoir with two hours retention time capacity and an electrical building with an emergency generator. The hydrogen sulfide levels in the wet well of the lift station are much higher than typical as compared to other lift stations in the City. The high hydrogen sulfide levels can be attributed to the low velocity in the sewer as a result of the relatively flat slope of the pipeline, which is controlled by the topography of the lagoon shoreline. This has created an extremely corrosive environment that has caused significant damage to metallic equipment in the wet-well of the lift station. The purpose of the Batiquitos Lift Station Improvement project is to reduce the hydrogen sulfide levels within the wet well and to repair or replace the equipment that has deteriorated or failed. In order to develop a strategy for improving the environment within the wet well, wastewater characterization studies were performed and alternatives developed. All of the alternatives except one required significant capital cost as well as increased operation and maintenance costs. The least costly alternative included the installation of an improved ventilation system and relocation of the exhaust stack within the facility. Prior to selecting this alternative, air quality modeling was performed to assist in determining whether the proposed ventilation improvements would create an odor problem in the vicinity of the lift station. The results of the modeling show that air quality at the lift station site will not be negatively impacted as a result of the improvements and that costly odor control equipment or chemical addition systems will not be necessary. In an effort to expedite some of the needed safety improvements at the lift station, the improvement project was divided into two phases, referred to as Package “A and Package “B”. Package “A was awarded May 11, 2004 by Council Resolution No. 2004-148 and is currently under construction. Construction is expected to be complete by the end of February 2005. Package “A” included improvements enhancing operational safety and reliability, which staff determined to be most critical. Package “B” design of the lift station improvement project includes installation of the new ventilation system and exhaust stack as well as improvements necessary for operator safety and maintenance. These improvements will provide a means to more safely remove pumps and fittings from the dry well and to provide better access to the wet well for cleaning and equipment removal. ENVIRONMENTAL REVIEW: The proposed project is exempt from CEQA California Code of Regulations Section 15301 (d) (“restoration or rehabilitation of deteriorated or damaged structures, facilities, or mechanical equipment. .. .‘I). Therefore, the project satisfies the requirements to be determined exempt under Section 15301 (d), and a Notice of Exemption will be filed by the Planning Director. Page 2 of Agenda Bill No. 17,958 FISCAL IMPACT: The project is funded from the Sewer Replacement Fund: Sufficient funds are currently available in the project account for the construction of improvements of Package “A and Package “B”. EXHIBITS: 1. Location Map. 2. Resolution No. 2005-025 approving plans and specifications and authorizing the City Clerk to advertise for bids for construction of the North Batiquitos Lift Station Improvements, Package “B”, Project No. 3809-2. DEPARTMENT CONTACT: Terry Smith, (760) 602-2765, tsmit@ci.carlsbad.ca.us d LOCATION MAP PROJECT NAME: PROJECT EXHIBIT 7 NORTH BATIQUITOS LIFT STATION IMPROVEMENTS NUMBER 3809-2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 EXHIBIT 2 R E SO LUTl ON NO. 2005-025 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, APPROVING PLANS AND SPECIFICATIONS AND AUTHORIZING THE CITY CLERK TO ADVERTISE FOR BIDS FOR CONSTRUCTION OF THE NORTH BATIQUITOS LIFT STATION IMPROVEMENTS, PACKAGE “B”, PROJECT NO. 3809-2. WHEREAS, the City Council of the City of Carlsbad, California, has determined it necessary, desirable, and in the public interest to construct the North Batiquitos Lift Station Improvements, Package “B”, Project No. 3809-2; and WHEREAS, on May 4, 2004 the City Council of the City of Carlsbad, California awarded the construction contract for Package “A’ improvements to the North Batiquitos Lift Station through Resolution No. 2004-148; and WHEREAS, Package “B” improvements to the North Batiquitos Lift Station are necessary to provide operational safety, equipment protection and compliance with current safety regulations; and WHEREAS, the plans and specifications for furnishing of all labor, materials, tools, equipment, transportation, and other expenses necessary or incidental to said project have been prepared and are on file in the Public Works-Engineering Department of the City of Carlsbad and are incorporated herein by reference; and WHEREAS, there are sufficient funds available to construct the project from the Sewer Replacement Fund; and WHEREAS, the project is exempt from the California Environmental Quality Act pursuant to CEQA Section 15301 (d). NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad, California, as follows: 1. 2. That the above recitations are true and correct. That the plans, specifications, and contract documents on file in the Public Works- Engineering Department of the City of Carlsbad for Project No. 3809-2 (North Batiquitos Lift Station Improvements, Package “B”) are hereby approved. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 3. The City Clerk of the City of Carlsbad is hereby authorized and directed to publish, in accordance with State law, a Notice to Contractors Inviting Bids for the construction of the North Batiquitos Lift Station Improvements, Package “B, Project No. 3809-2, in accordance with the plans, specifications, and contract documents referred to herein. PASSED, APPROVED AND ADOPTED at a regular meeting of the Carlsbad City Council held on the 1st day of FEBRUARY ,2005 by the following vote, to wit: AYES: Council Members Lewis, Hall, Kulchin, Packard, Sigafoose NOES: None ABSENT: None CLAUDE A. LEWIS, Mayor‘ Y- Y?TT HALL, Mayor Pro Tern ATTEST: LORRAINE M. WOh, City Clerk (SEAL)