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NOV 0 '8 <br /> AEGIS ENVIRONMENTAL , INC4 , <br /> 1050 Melody Lane,Suite 160, Roseville, CA 95678 ♦ 916.782-2110!916.969-2110 1 FAX 916.786-7830 <br /> November 1, 1991 <br /> - I <br /> i <br /> Mr. F. Kurt Miller <br /> Shell Oil Company <br /> Post Office Box 5238 <br /> Concord, California 94524 I <br /> Subject: San Joaquin County Public Health Services October 7, 1991, Letter <br /> Shell Service Station (WIC #204-7524-2408) <br /> 4445 Pershing Avenue, Stockton, California <br /> Dear Mr. Miller: r' <br /> In response to San Joaquin County Public Health Services/Environmental Health k <br /> Division's (SJCPHS/EHD) letter dated October 7, 1991 (Attachment 1), Aegis <br /> Environmental, Inc. (Aegis), offers the following comments: <br /> 1. Aegis will install a groundwater monitoring well upon approval of the ! <br /> required workplan, permitting, and SJCPHS/EHD in the downgradient <br /> direction of the former underground storage tank basin. t <br /> 2. Future groundwater analytical results in the quarterly groundwater <br /> monitoring reports will be reported in parts-per-billion (ug/ml) as indicated <br /> in the State Water Resources Control Board LUFT Field Manual. <br /> 3. A copy of the chain-of-custody for the quarterly groundwater sampling on, <br /> July 17, 1991, is located in Attachment 2. <br /> I <br /> I <br /> 89-0160.LTR GEOLOGISTS ENGINEERS GROUND WATER SCIENTISTS <br />