AgdaPkt 2007-06-25 - Laserfiche WebLink

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6.1F Page 1 REPORT To the Honorable Mayor and City Council Ft()J'n the Of ... Mana' er June 25, 2007 SUBJECT Informal Bid Process - Red Morton Irrigation Well Drilling, Construction and Development RECOMMENDATION Informational report. No action by Council required. BACKGROUND In March 2004, the City's Recycled Water Task Force recommended that staff investigate potential uses of groundwater to reduce demand on the potable water supply. In response, staff proposes to install a test well in Red Morton Park to determine the feasibility of using groundwater, rather than potable water, for landscape irrigation in Red Morton Park. The purpose of the test well is to determine if groundwater exists in adequate quantities to support a production well for irrigation of a portion of Red Morton Park with groundwater rather than potable water. Currently, only potable water is available for irrigation purposes at Red Morton Park. The test well will be drilled to a recommended depth of 250 feet per survey results provided by Geoconsultants Inc. If groundwater is encountered, a temporary pump will be lowered to the bottom of the well to test production capacity, log the properties of the aquifer, and sample water quality. If the test results are favorable, the City will develop the test well into a functional well by removing the temporary pump, increasing the diameter of the well bore, and providing appropriate casing, screens, gravel pack, sanitary seal, and locking top cap. A subsequent project will equip the well with a permanent pump and provide piping to connect the well to the existing irrigation system in the park. Installation of a hydro pneumatic tank may be required at this stage. If the well does not have adequate production capacity, it will be abandoned and another test well will be performed at an alternate location within Red Morton Park. All work associated with the project will be performed according to the California Department of Water Resources ("DWR") Bulletin 74-90 (Water Well Standards, State of California) and the regulations of the San Mateo County Environmental Health Department. A Class 3 California Environmental Quality Act Exemption for this project was issued in May 3,2007.