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4 i �tll i l��cr iT 1 ff ! FAL 1 Y <br /> & Associates, Inc <br /> E 1F <br /> Environmental Scientists and Engineers <br /> September 14, 1993 <br /> 1685-030 <br /> San Joaquin County Environmental Health Division <br /> P 0 Box 2009 <br /> 445 N San Joaquin Street <br /> Stockton, California 95201 <br /> Attention Mr Harlin Knoll <br /> Subject Site Contamination Work Plan <br /> Chapin Brothers, Inc <br /> 1766 Monte Diablo Avenue <br /> Stockton, California 95203 <br /> Contact Mr Russell Chapin <br /> u <br /> Dear Mr Knoll <br /> At the request of Mr Russell Chapin of Chapin Brothers Inc , Walsh & Associates, Inc (Walsh) <br /> has prepared the following site contamination work plan (SCW) for the property (site) located <br /> at 1766 Monte Diablo Avenue in Stockton, California (Figure 1) Following your review and <br /> approval, Walsh will proceed with work to explore the spatial extent and magnitude of soil and <br /> groundwater contamination and evaluate alternative solutions for site remediation <br /> BACKGROUND <br /> Prior to acquisition of the site by Mr Russell Chapin in 1985, the site was leased by Mr Chapin <br /> from Mr Tom Blanchard (deceased) from 1975 to 1985 Between the years 1941 and 1975, Mr <br /> Chapin subleased the property from Shell Oil Company Shell Oil held the master lease from <br /> Mr Blanchard during that time Mr Chapin obtained the master lease and purchased the service <br /> station equipment from Shell in 1975 <br /> During the late 1930's, Shell Oil Company leased the property, made improvements, installed the <br /> original service station equipment including two or three small underground storage tanks, and <br /> opened a gasoline station Underground storage tanks were added to the site from time to time <br /> during the years from 1941 to 1975 as retail sales increased In 1963, Shell Oil Company <br /> replaced a leaky 8,000-gal underground gasoline storage tank No record for the removal of this <br /> tank was available The site was used to sell gasoline until December 30, 1990 All of the <br /> . known underground storage tanks at the site passed tank integrity tests in January, 1990 <br /> West Coast Division- <br /> 1734 34th Street Suite B Sacramento, California 95816 Phone (916) 737-7240 FAX (916) 737-7245 <br /> Corporate Office. <br /> 4888 Pearl East Circle Suite 108 Boulder, Colorado 80301-2475 Phone (303) 443-3282 FAX (303) 443-036_ i <br />