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Western Regional 945 <br /> erations <br /> EA ENGINEERING, 41 Lafayette Circle <br /> SCIENCE, AND Lafayette,Californiais 94549 <br /> TECHNOLOGY, INC. (415)283-7077 <br /> 30 September 1987 <br /> Robert S. Stolz '9 5 aw <br /> 1:J � <br /> Engineer, West Central Division IC! <br /> Chevron U.S.A. Inc. VV <br /> 2 Annabel Lane, Suite 200 APR 16 1990 <br /> San Ramon, California 94583 <br /> `NVIRGivMENTAL HEALTH <br /> RE: Chevron SS 9-4054 ERMITISERVICES <br /> 7103 Country Club Drive <br /> Stockton, California <br /> Dear Bob: <br /> Pursuant to your request, EA Engineering, Science, and Tech- <br /> nology, inc. ( EA) conducted a risk assessment at the above- <br /> referenced site. A copy of the report is enclosed. <br /> On the basis of this investigation it appears that no significant <br /> risk is posed by hydrocarbon contamination detected in ground <br /> water beneath the site. EA recommends no further action, except- <br /> ing semi-annual gauging and annual sampling of the three existing <br /> wells. <br /> Should you have questions or require additional information <br /> please do not hesitate to contact me. <br /> Sincerely, <br /> Roger W. Greensfelder, Ph .D. , P.G. <br /> RWG:cam <br /> Enclosure <br /> BALTIMORE 0 CHICAGO 0 CINCINNATI 0 LINCOLN ❑ NEW YORK ❑ SAN FRANCISCO <br />