SR 05:232 - Laserfiche WebLink

to objectively and analytically assess the groundwater water quality issues brought up in the past to Zone 7 by the City and DSRSD. Both of these documents were approved by a unanimous vote of the elected officials who were present at the August 1, 2005 joint meeting, including three Pleasanton City Council members. In addition, the DSRSD Board approved the subject documents at its meeting held August 2, 2005. Pending City Council approval of the resolution and Policy Principles this evening, the Zone 7 Board is expected to approve the same documents at its meeting on August 17, 2005. Honorable Mayor and Members of the City Council: BACKGROUND Zone 7 has been increasing its construction of new groundwater wells and use of the Main Basin over the past ten years. Moreover, all of Zone 7's seven existing wells have been constructed within the City of Pleasanton. As a result, and due to Zone 7's existing system hydraulics and operation, the City and the Dublin San Ramon Services District (DSRSD) receive most, if not all, of the water being pumped by the Zone 7 wells. Zone 7's groundwater pumping results in the west side of its distribution system (which includes Pleasanton) receiving three to four times the hardness of water compared with water (from the State Water Project) delivered by Zone 7 to the east side of its distribution system. Zone 7 is proposing to construct between eight to fifteen new production wells over the next 15 years to keep up with increasing treated water demands, emergency supply, redundancy, and salt management needs. The wells are proposed to be located within eleven wellfield areas, over the Main Basin, in the cities of Pleasanton and Livermore. The City has commented, via numerous letters to Zone 7 over many years, that Zone 7's pumping of the groundwater has negative impacts on the City of Pleasanton and its customers. These negative impacts include much higher salts in delivered water, plus an increase in salts into the Main Basin. The City's Comments on Zone 7's Well Master Plan and EIR The City and DSRSD believe that Zone 7's proposed Well Master Plan could exacerbate the situation in that it will allow Zone 7 to substantially increase its well production by constructing eight to fifteen new wells. In 2004,we submitted comments to Zone 7 about the adequacy of the EIR that accompanies this Well Master Plan, stating that these wells impact the quality of the water that is delivered to City residents without providing sufficient mitigation for such impacts. SR:05:232 Page 2 of 4