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4 1 <br /> Advanced <br /> GeoEnvironmental, Inc. - <br /> 10 May 1999 SAY 1 1 i9� <br /> AGE-NC Project No 95-0103 TAL HEALTH <br /> NVIERMIT I SERVICES <br /> PE <br /> Mr Harlin Knoll <br /> SAN JOAQUIN COUNTY <br /> Public Health Services - Environmental Health Division(PHS-EHD) <br /> 304 E Webber Avenue, 3rd Floor ENVIRONMENTAL HEALTH DIVISION <br /> 304 E Weber Ave Third Floor <br /> Stockton, CA 95201 P O Box 388, St2Skton CA 95201-0388 <br /> Approved Lvj <br /> Subject: Work Plan For Off-Site Assessment Denied 171 /�� <br /> CHAPIN BROTHERS,INC. q Con itions c ; - C: 066 TuM� <br /> wvxt <br /> ,.1766 Monte Diablo Avenue, Stockton, difoy $ S by <br /> Dear Mr Knoll <br /> At the request of Mr Russell Chapin, Advanced GeoEnvironmental, Inc (AGE) has prepared the <br /> enclosed Work Plan for Off-Site Assessment 1766 Monte Diablo Avenue, Stockton, California(the <br /> site) The scope of work includes the installation three soil borings on site, one soli boring off-site <br /> and the collection of seven grab waters through `hydro-punches' borings The location of the site and <br /> its surroundings are illustrated in Figure 1 Structures,well locations and proposed boring locations <br /> are illustrated in Figure 2 <br /> 10. BACKGROUND <br /> Site history and findings from previous investigations and monitoring events at the site are detailed <br /> in the Corrective Action Plan (CAP) and the Quarterly Reports prepared by AGE This scope of <br /> work was directed by the PHS-EHD in a letter to Mr Russell Chapin, dated 13 April 1999 <br /> Investigation activities will be performed in accordance with guidelines for investigation of <br /> underground storage tank(UST) sites established by the San Joaquin County Public Health Services <br /> - Environmental Health Division (FTS-EHD) and Central Valley Regional Water Quality Control - <br /> Board (CVRWQCB) <br /> yip <br /> . 2.0. SCOPEIOF WORK <br /> A soil vapor extraction/air-sparging system has been installed and operated at the site to remediate <br /> 4005 North Wilson Way, Stockton, California 95205 <br /> Telephone (209) 467-1006 FAX (209) 467-1118 <br />