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PUBLf(,�' HEALTH SEiVICES <br />` SAN JOAQUIN COUNTY <br /> JOG]KHANNA NfR.1\1.1.x. . <br /> Health Officer <br /> P.O. Box 2009 0 (1601 East Hazelton Avenue) 0 Stockton, California 95201 <br /> (209) 468-3400 _ <br /> AUG 2 1991 <br /> } <br /> F <br />� S J ROLLER ir. Fly�,'. <br /> r SHELL OIL COMPANY <br /> P O BOX 4023 <br /> CONCORD CA 94524 <br /> IN REPLY REFER TO SITE CODE: 1785 <br /> RE: Shell Service Station a <br /> 4445 Pershing Avenue <br /> M Stockton, CA <br /> Public Health Services,Environmental Health Division, (PHS/EHD)has reviewed your most recent Quarterly <br /> Report, with cover letter, submitted by Aegis Environmental Inc., received June 3, 1991, and has the <br /> following comments. <br /> 1 <br /> 1. The groundwater gradient flow direction and depth to groundwater that has been reported <br /> on a monthly basis can be reduced to quarterly. Quarterly reports are recognized as a <br /> minimum reporting requirement under Title 23 or the California Code of Regulations, <br /> Chapter 16, Article 5, Section 2652 and should continue until site cleanup is completed. <br /> 2. PHS/EHD recommends the sharing of data between Shell Oil Company and Exxon U.S A: r' <br /> ,7.40 <br /> (4¢44 N.Pershing) as this would benefit both companies in the expeditious cleanup of the <br /> respective sites. (Please note item (2) in the comment letter from PHS/EHD dated April 23, <br /> f <br /> 1991.) ' <br /> 3. Please provide PHS/EHD with a legible copy of the chain of custody letter in which the . <br /> water samples were analyzed for BT LK, TPH-g and lead. 1 <br /> Should you have any further comments or, questions, contact Steve Schneider, REHS, of my staff at <br /> t <br /> (209)468-3441. <br /> 1 Jogi Khanna, M.D., M.P.H. i <br /> Health Officer <br /> auri ACtulla�, R.EHS, Program. Manager i <br /> En onmental Health Division `. <br /> LAC/SS:nr ' <br /> c: CVRWQCB - Beth Thayer v <br /> c: Aegis Environmental, Inc. - JacquelineDaub <br /> 801 Riverside Avenue, Ste. C, Roseville, CA 95678 <br /> . 5 <br /> A Division of San Joaquin Coudty Heakh(are Services <br />