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PACIFIC <br /> ENVIR.ONMENTA. <br /> GR(JQ1 P INC., <br /> 'w0!' 9.4 1997 <br /> November 24 1997 (.i`•/�r ,_J ,,:•., i S <br /> Project 920-078.1A <br /> Ms. Mary Meryays, <br /> San Joaquin Coity Public Health Services <br /> Environmental�ith Division <br /> 304 E. Weber kv6ue, Third Floor <br /> Stockton, CA 95201-0388 <br /> Re: Soil and Groundwater Investigation Report and Work Plan <br /> Chevron Service Station 9-0557 <br /> 139 South Center Street <br /> Stockton, California <br /> Site Code: 1039 <br /> Dear Ms. Meays: <br /> rb This letter,prepared by Pacific Environmental Group, Inc. (PACIFIC) on behalf of <br /> Chevron Products Company (Chevron), presents the results of the investigation of soil <br /> and groundwater conditions offsite to the southeast and at the southern end of the site <br /> referenced above(Figures 1 and 2) and presents a work plan for firrther investigation. <br /> The purpose of the work was to: 1) to define the extent of gasoline hydrocarbons offsite <br /> to the southeast (downgradient); and 2) initiate collection of data to assess the risk <br /> associated with the presence of gasoline hydrocarbons at the site. The work was <br /> performed as outlined in PACIFIC's Work Plan for Well Installation dated <br /> September 26, 1997,Addendum to Work Plan for Well Installation dated October 17 <br /> 1996, arid Response to September 17, 1997 Letter and Summary of September 24, 1997 <br /> Telephone Convers4ti�tt, ,per_ ' �e�? jx-tliet�an-•Joaqu C ty Public-Health . <br /> Services- FAnviromental Health Division(PITS18I-Il`) 3, l'�147. Aa <br /> requested in the�r�aYb'y"lko 'lP T Pr.R I <br /> off,of the l� e o os . 'onsrt sq� <br /> extraction.well was instead b,� .di a'&4 mel gt undwaw rn000r�ing well j <br /> Additionally,this Te ter tib�i=v r'l ~ ix for �t>!ona-assessmeti <br /> down raqient amc . ss rpdient e44i6 iiiyio�carboir imps jgim. i dwatie'r <br /> plume. ': . <br /> This letter'ihcludes'a bgefdiscifssion ef-site hat . investiga iops, scop <br /> of work, s><itnmfy of fan s, acid W"6A. <br /> Awfik <br /> C Sunrise Gold Circle, Suite M, Rancho Cordova, California 95742 (916) 858-2350 FAX (916) 858-2355 <br />