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11 <br /> Advanced <br /> GeoEnviron mental joe <br /> 15 November 2010 <br /> AGE-NC Project No. 08-1606 <br /> Mr. Mike Infurna <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street <br /> Stockton, CA 95202 <br /> Subject: Dual-Phase Extraction Pilot Study Work Plan - Addendum <br /> CANEPA'S CAR WASH - PARK <br /> 248 East Park Street, Stockton, California <br /> Dear Mr. Infurna: <br /> At your request and the request of Mr. Remo Canepa of Canepa's Car Wash and as <br /> directed by the San Joaquin County Environmental Health Department (SJCEHD) letter <br /> dated 27 October 2010, Advanced Geo Environmental, Inc. (AGE) has prepared the <br /> enclosed Dual-Phase Extraction Pilot Study Work Plan - Addendum for 248 East Park <br /> Street, Stockton, California detailing the location of observation wells for the performance <br /> of a dual-phase extraction pilot study.AGE proposed two observation wells for the pilot test <br /> with locations which were too far in distance from the DPE extraction well. The new <br /> proposed locations for the observation wells (MW-18 and MW-19) are at distances of <br /> 15 feet and 35 feet from the proposed DPE wells (DPW-1). The attached figures depict the <br /> locations. Monitoring wells MW-1, MW-9 and MW-10 are not sufficient to independently <br /> evaluate the DPE pilot test, requiring the installation of the two proposed observation wells. <br /> Upon approval of the work plan by the SJCEHD, AGE will submit a schedule for work. If <br /> you have any questions or require further information, please contact our office at (209) <br /> 467-1006. <br /> Sincerely, <br /> ML <br /> Advanced GeoEnvironmen �Oh1 R GFO�o <br /> R. f/l�sr <br /> w * No. 7473 <br /> William R. Little <br /> Senior Project Geologist <br /> California Professional Geologi - <br /> �F J <br /> CC-Mr. Remo Canepa - Canepa's Car Wash <br /> Enclosure: Figures <br /> 837 Shaw Road, Stockton, California 95215 <br /> Telephone (209)467-1006 Fax (209) 467-1118 <br />