AgdaPkt 2000-12-11 - Laserfiche WebLink

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7.! -C2. Francisco Public Utilities Commission (SFPUC) curtails the water supply from the Hetch-Hetchy system to Redwood City. At its meeting in September, the City Council Utility Committee recommended to proceed with the feasibility study of the water storage facilities at the Municipal Services Center, and the Committee also requested the City Council to further establish an emergency water storage policy. The purpose of this study is to determine the cost and feasibility of constructing a two to three million gallon water storage tank and booster pump station. The water storage tank would be a welded steel tank installed at grade. Both the water storage tank and the booster pump station would be located on a site at the City's Municipal Services Center (MSC) near the intersection of Veterans Boulevard and Chestnut Street. The principal function of these proposed facilities (tank and pump station) would be to provide additional emergency water storage and the ability to provide the required residual pressure for fire protection to the surrounding area, in the event of interrupted SFPUC service. To determine the feasibility of the water storage tank and booster pump station, it is necessary to have a topographic map prepared, and a geotechnical investigation of the site performed. This information will be used to develop preliminary layout and structural requirements. It will be necessary to develop an operational plan, which addresses water quality regulations, especially those associated with the future use of chloramines as a disinfectant. An operational plan will be used to determine if tank baffling is necessary, and to determine how the tank should be operated during non- emergency periods. SCODe. The scope of the proposed project includes: >- A topographic survey of the proposed site. >- A geotechnical investigation of the proposed site which can be utilized for the final foundation design. ~ An operational plan addressing water quality regulations that defines the need for baffling or other alternatives for maintaining water quality in the tank, and that defines how the tank will be operated during non-emergency periods. >- A preliminary estimate of proposed construction costs for the design and construction of two alternatives: (1) a 2.0 MG water tank and pump station, and (2) a 3.0 MG water tank and pump station. >- A Feasibility Study will be prepared summarizing the above. The Feasibility Study will first be prepared as a draft document and submitted to the City for review and comment. It will then be revised based on comments received, and the final Feasibility Study will then be submitted.