COMPLIANCE INFO_1987-1992 - Laserfiche WebLink

Home Browse Search

0 I1111Delta Environmental Consultants, Inc. December 8, 1999 Mr. Matthew Parker, REHS Senior Registered Environmental Health Specialist San Joaquin County Public Health Services Environmental Health Division 304 East Weber Avenue, 3'd Floor P.O. Box 388 Stockton, California 95201-0388 Subject: Dispenser Soil Sampling Report ARCO Facility No. 2130 7906 N. El Dorado Street Stockton, California Delta Project No. L099-705 Dear Mr. Parker: 9 27141 Aliso Creek Road Suite 270 Aliso Viejo, California 92656-5305 U.S.A. 949/362-3077 FAX: 949/362-0290 .1 A-*, D 0. t DEC 21 1999 ENVIRONMENTAL HEALTI-i PERMIT / SERVICES Delta Environmental Consultants, Inc. (Delta) was contracted by ARCO Products Company (ARCO) to perform soil sampling beneath former dispenser locations during dispenser island replacement activities at ARCO Facility No. 2130 (the Site; see Figure 1), located at 7906 N. EI Dorado Street in Stockton, California. The purpose of the soil sampling was to fulfill requirements of San Joaquin Public Health Services. This letter report presents the data collected during the former dispenser sampling. Soil Sampling On September 28, 1999, a Delta representative, working under the direction of a California Registered Geologist, visited the Site to collect soil samples from beneath former dispenser locations and associated former product piping. Delta collected soil samples beneath the former dispenser locations under the direction of Inspector Matthew Parker. Four dispenser samples were collected and identified as DP -1-3.5 through DP4-3.5 (Figure 1). The samples were collected at a depth of approximately 3.5 feet below the former dispenser locations. Seven soil samples were collected beneath former product pipelines and identified as PL -1-3.5, PL -2-3.5, PL -34.5, PL -4-5.5, PL -54.5, PL -6-3.5 and PL -7-3.5. These samples were collected at a depth of approximately 3.5 to 5.5 feet beneath the former pipeline locations. Each soil sample location was exposed with a hand auger and each sample was collected using a slide hammer to drive a brass sampling tube into the soil. The ends of each brass tube were then covered using TeflonTm sheets and plastic caps. Each sample was sealed, labeled with the ARCO station number, sample name, collection date, and collection time. Each sample was identified on the standard ARCO chain of custody. To avoid cross contamination between samples, all sampling equipment was washed with an aqueous solution of AlconoxTm detergent, rinsed with potable water, and rinsed again with distilled water. Providing a Competitive Edge