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3164 Gold Camp Drive <br /> Delta = Ra00 <br /> Rancho�/. - Rancho Cordova,CA 95670-6021 <br /> Environmental P� 4 14 U.S.A. <br /> Consultants,Inc. 916/638-2085 <br /> FAX:916/638-8385 <br /> September 26, 2000 <br /> Mr. Vidal Pedraza <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Street 3`d floor <br /> Stockton, CA 95202 <br /> Subject: Dispenser Soil Sampling Report <br /> Atlantic Richfield Company Facility No. 5569 <br /> 3518 E. Hammer Lane <br /> Stockton, California <br /> Delta Project No. D000-337 <br /> Dear Mr. Pedraza: <br /> Delta Environmental Consultants, Inc. (Delta) was contracted by Atlantic Richfield <br /> Company (ARCO) to perform soil sampling beneath the former dispenser locations <br /> during dispenser and product line replacement activities at ARCO Facility No. 5569 (the <br /> Site; see Figures 1 and 2), located at 3518 E. Hammer Lane Stockton, California. The <br /> purpose of the soil sampling was to fulfill requirements of the San Joaquin County Public <br /> Health Services. This report presents the data collected during the former dispenser <br /> sampling. <br /> Soil Sampling <br /> On July 31, 2000, a Delta representative, working under the direction of a California <br /> Registered Geologist, visited the Site to collect soil samples from locations beneath the <br /> former gasoline dispensers and associated product piping. Delta collected soil samples <br /> under the direction of Mr. Vidal Pedraza, the Registered Environmental Health Specialist <br /> representing San Joaquin County. Eight soil samples (Dl-2 through D8-2) were <br /> collected from beneath the dispensers and five soil samples (P1 through P5) were <br /> collected from beneath product piping (Figure 2). The samples were collected at depths <br /> ranging from 3 to 5 feet below ground surface (bgs). The samples were all collected by <br /> driving a brass sleeve into soil recovered in a hand auger from approximately 2 feet <br /> below the first contact with native soil. The ends of each brass tube were then covered <br /> using Teflon TM sheets and plastic caps and the samples were placed in an ice-chilled <br /> cooler. Each sample was sealed, labeled with the ARCO station number, sample name, <br /> collection date and collection time. To avoid cross contamination between samples, all <br /> sampling equipment was washed with an aqueous solution of AlconoxTM detergent, <br /> rinsed with potable water, and rinsed again with distilled water. <br /> Providing a Competitive Edge <br />