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(lam fa <br /> II <br /> ENVIRONMENTAL HEALTH EPARTMENT � <br /> SAN JOAQUI COUNTY lY Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Boreman,R.E.H.S.§ 304 East Weber Avenue, Third Floor <br /> Director Mike Huggins,R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Nilson,R.E.H.S. <br /> Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> e/FOR Laurie A.Cotulla,R.E.H.S Fax: (209) 464-0138 Robert McClellan,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> i <br /> JERRY THIEMANN j <br /> THIEMANNS SERVICE <br /> 327 BLOSSOM DR <br /> RIPON CA 95336 <br /> i <br /> r" RE: Thiemanns Service <br /> 106 Second St. <br /> Ripon,CA . <br /> WORKPLAN: Workplan for r indwater Extraction Testing at Former Thiernann's Service 106 Wes <br /> Second Street Ripon California DATED: 2/4/02 <br /> l <br /> i <br /> PREPARED BY: ATC Associates.Inc. _ <br /> APPROVED X <br /> DISAPPROVED ❑ <br /> 1` ADDENDUM El Submit by: <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN(H&S 25299.37,subd.(c)(3).): <br /> 1. Conduct.a 24-hour groundwater extraction step drawdown test to determine if groundwater extraction is a <br /> viable remedial alternative at the above referenced site. <br /> 2. Laboratory analysis of the three,groundwater samples for total petroleum hydrocarbons,BTEX, and fuel <br /> oxygenating compounds. <br /> COMMENTS AND CONDITIONS: <br /> 1. Based on the ability of MW-3 (2-inch)to produce a sufficient groundwater extraction flow nate,alarger <br /> groundwater extraction well may need to be installed. . <br /> 2. The ability of ATC to discharge effluent groundwater directly to sanitary sewer will be based on the City of <br /> Ripon's discharge requirements. Submit a copy of the discharge permit to EHD prior to mobilization. <br /> I. 3. Notify EHD at least 48 hours prior to the proposed scheduled work dates. <br /> DATEDBY <br /> am avigEHS <br /> LOP/Site NGtigation Unit IV <br /> Cc: CVR%VQCB—Marty Hartzell <br /> ATC Associates,Inc.—Jeanne Homsey. <br /> ° Dy � dv <br /> l <br />