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r 1 <br /> PUBLI HEALTH SEROCES ,o'Q..... :..�o <br /> SAN JOAQUIN COUNTY x' s <br /> JOC[ KHANNA M.D.-M.P.H. <br /> Health Officer <br /> P.O. Sox 2049 + (1601 East Hazelton Avenue) • Stockton, California 95201 <br /> (209) 468-3400 <br /> DAN KIRK �., ✓ k <br /> SHELL OIL COMPANY <br /> P O BOX 5238 2 9` <br /> CONCORD CA 94524 <br /> RE: Shell Service Station SITE CODE: 1785 <br /> 4445 N. Pershing Ave. <br /> Stockton, CA 84524 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) has received and reviewed the letter dated <br /> January 29, 1993 from Aegis Environmental, Inc. to PHS/EHD. <br /> PHS/EHD has obtained flood control maps from the San Joaquin <br /> County Public Works department showing groundwater levels at the <br /> above mentioned site as low as fifty feet below surface (August <br /> 1974) . <br /> It is the understanding of PHS/EHD that a detailed tank repair <br /> and/or replacement history dating back to 1964 will be included <br /> in the first quarter 1993 quarterly monitoring report. <br /> It is the position of PHS/EHD, that a monitoring well be <br /> constructed below the first aquifer and soil below the first <br /> aquifer be sampled and analyzed unless a site history dating back <br /> to 1964 reveals pristine conditions regarding tank integrity, <br /> fuel reconciliation, etc. <br /> Should you have any further questions regarding this matter, <br /> please contact Michael Collins, EHS, of my staff at <br /> (2 09) 468-0338 . <br /> Jogi Khann' .D. , M.P.H. <br /> Health O,�fi r <br /> aurie A. Cotulla, RENS, Program Manager <br /> Environmental Health Division <br /> LAC/MC: lb <br /> c: CVRWQCB <br /> c: Aegis Environmental <br /> A Dtvision of San Joaquin County Heaith C.ue Services <br /> r <br />