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ENVIRONMENTAL HEALTH DEPARTMENT <br /> pouH SAN JOAQUIN COUNTY <br /> 00 <br /> c Donna K Heran,R E H S UnriSuperwsars <br /> East Weber venue, Carl Borman,R E H S <br /> 304 EWbAThird Floor <br /> Director Mike Higgins,R E H S ,R D I <br /> AI Olsen,R E H S Stockton California 95202-270$ <br /> • c <br /> Prop aha Mana ep Douglas W Wilson,R E l� S <br /> F oa*'' Telephone (209) 468-3420 Margaret Lagotio,R E I I S <br /> Laurie A Coi�rllA,112.E H S <br /> Program Manager Fax (209) 454-0138 Robert McClellan,R€H S <br /> Mark Barcellos,R E H S <br /> REED RINEHART <br /> �+ RINEHART DISTRIBUTION <br /> P O BOX 725 <br /> UKIAH CA 95482 <br /> DARAKAR INC <br /> 4243 KNOLLVIEW DR <br /> DANVILLE CA 94525 <br /> RE RINO SERVICE STATION SITE CODE 18761 <br /> 1003 EAST YOSEMITE <br /> MANTECA CA 95335 <br /> WORKPLAN WQrk Plan Additional Site Investigation DATED October 22-2004 <br /> PREPARED BY Ramagce Environmental <br /> APPROVED % with Conditions (See Below) <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN (H&S <br /> 25296 10,(c)(3) ) <br /> 1) Install three off-site groundwater morittonng wells to define the lateral extent of <br /> the groundwater contamination plume <br /> 2) Analyses of samples mclude TPH-g, BTEX,all 5 oxygenates, and lead scavengers <br /> 1,2-DCA <br /> COMMENTS AND CONDITIONS <br /> 1) Include lead scavenger 1,2-dibromoethane (EDB) in the chemicals to be <br /> analyzed in quarterly samphngs following installation of the new wells If EDB <br /> is not detected w the next 2 quarters, both 1,2-DCA and EDB could be <br /> exempted in future quarterly reporting <br /> 2) Obtain appropriate access agreement fxom ad)acent property owners <br /> 3) Submit fee and permit application to EHD before implementation of work <br /> 4) Implement proposed work by December 23, 2004 <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN (H&S 25296.10,(C)(3) ), <br /> None <br /> H 7 <br /> DATLrD�ov'emUe�9, 20_04 BY <br /> Cc CRWQCB, Central Valley Region—James L L Barton, RG <br /> Cc Ramage Environmental—Joe Ramage <br />