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OUR <br /> groundwater extraction and treatment system; in fact, the pumping rate for the remaining operation <br /> extraction wells will likely increase as the total pumping capacity (i.e., flow rate) of the overall <br /> system will remain the same. In addition, piezometers PZ-002A-1, PZ-002A-2, and PZ-003A will <br /> not be replaced as the purpose of these piezometers is to monitor drawdown induced by pumping of <br /> extraction wells GWE-01 and GWE-02. <br /> The abandonment of these wells will be completed by a licensed C-57 drilling company under the <br /> observation of an LFR geologist and San Joaquin County Environmental Health Department <br /> (SJCEHD) personnel. Before fieldwork is begun, a drilling permit for well abandonment will be <br /> obtained from the SJCEHD. At a minimum, the wells will be abandoned in place with a cement- <br /> bentonite grout slurry placed from the bottom up using a tremie pipe. The associated vault boxes <br /> and upper 5 feet of well casing will be removed after each well is abandoned. In addition, the <br /> lateral that serves well GWE-002 will be excavated, cut at the "T", and capped. After <br /> decommissioning activities take place, a completed California Department of Water Resources <br /> Well Completion Report (Form 188) describing well abandonment activities will be submitted to <br /> the RWQCB in Sacramento. <br /> If you have any questions or comments, please call Lucas Goldstein at (510) 596-9535 or Don <br /> Bradshaw at (512) 895-0003. <br /> Sincerely, <br /> Donald T. Bradshaw, P.G. Lucas Goldstein, P.G., E.I.T. <br /> Principal Hydrogeologist Senior Engineer <br /> California Professional Geologist (7035) <br /> Attachments: <br /> 1 Site Photograph <br /> 2 Laboratory Analytical Report for Samples Collected on July 12, 2007 from Wells GWE-01 <br /> through GWE-003 <br /> cc: Marie McCrink, RWQCB <br /> John Farr, Ph.D., Farr Associates <br /> David Gouker, City of Stockton Public Library, Margaret Klausner Troke Branch <br /> David Sadoff, AIG Environmental <br /> David B. Durrett, Cohen& Durrett <br /> Phil Johnson, Sims Grupe Management <br /> Joe Salazar Jr., Lewis Brisbois Bisgaard & Smith LLP <br /> Katharine Wagner, Downey Brand <br /> Lawrence D. Lipp, Lipp CDS Inc. (representative of property owner) <br /> llr-WorldSavings-abandonGWE_PZ-06750. mdeh 2 <br />