RES 97015 - Laserfiche WebLink

ANSWERS TO NEIGHBORHOOD OUESTIONS The following are answers to the five questions raised at the February 20 City/Neighborhood meeting which required additional staff time to research: What is the extent of planned water and sanitary sewer line expansions to (a) the 18-hole Golf Course; and (b) the remaining Happy Valley area ? Water The closest major City-owned waterline to the Golf Course is the 24-inch transmission main located in Sycamore Road near Alisal Street that serves the eight-million-gallon Sycamore water storage reservoir. The base of this reservoir is located at an elevation of 474 and provides fire, emergency, and operational storage to the City's "Lower Pressure Zone." The service elevation for the Lower Pressure Zone generally serves properties with meters located below elevation 390 with a static water pressure range of 35 to 45 pounds per square inch depending upon the amount of water in the reservoir and other operational conditions. The entire Golf Course property has elevations (390 to 550) above this Lower Pressure Zone service elevation. It therefore appears that a water system for the Golf Course, club house, and proposed homes on the property would best be served by two water storage systems: one system for irrigation water for the Golf Course which could be a pond or water feature below elevation 425; and the other a pump station and storage reservoir to provide domestic and fire service with adequate pressure located at elevation 636 to match the City's Bonde Reservoir Zone. To provide the required water flows to the Golf Course and related residential properties, it is proposed to extend a 12- to 16-inch waterline in Alisal Street from Sycamore Road to the Golf Course site. This is a distance of 3,800 feet. Up to an additional 34 future homes on the Golf Course, three existing homes on the Golf Course Properties, and the club house would then be served by a pump station and water reservoir at elevation 636 on the Golf Course Properties. The Golf Course irrigation system would include a pump station and possibly higher elevation storage ponds. Plans are to bring reclaimed water from the general area of the Castlewood Country Club lower golf course and the proposed City and County of San Francisco property golf course, if and when available. The lower irrigation pond and irrigation system should be designed so that conversion to reclaimed water can be made at minimal cost and disruption to the Golf Course operations. 2