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Mr. W.T.Nickerson, UNO* - 2 - / 0 20 March 2001 <br /> The installation of the proposed B-zone extraction well (E-2) will follow the protocol described <br /> for EW-1 in the Aquifer Work Plan. Extraction well E-2 will be screened between 95 and 110 <br /> feet below ground surface, as Mr. Chase described in our 19 March conversation. <br /> The Nested Well Work Plan and Extraction Well Work Plan are approved as proposed. Please <br /> incorporate a well installation report into the Hydrology Report describing the results of the <br /> aquifer characterization work. As I discussed with Mr. Chase, the submittal date for the <br /> Hydrology Report due 31 March 2001 is extended to 29 June 2001 to accomodate the additional <br /> well installations and B-zone aquifer characterization. Iaistallation reports for monitoring well <br /> pairs MW-13 A/B and MW-14 A/B, extraction well E-l:, and accompanying laboratory data are <br /> due 31 March 2001. <br /> Thank you for your proactive approach to identifying the extent of constituents in the deeper <br /> zone. You m call meat (916) 255-3080 if you have,any questions. <br /> AMY T1RRELL <br /> I <br /> Site Cleanup Unit <br /> cc: Mr. Michael Info na, San Joaquin County Public Health Services, Stockton <br /> Mr. Jan Wagoner, UNOCAL, Elk Grove <br /> Mr. Anthony Giglio, Stockton <br /> Mr. Eric Chase, Sierra-Pacific Group, El Dorado Hill. <br /> ti <br /> 1 <br /> j1 <br />