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ry' <br /> Job Name; JOE t[ELL - TRACY, CALIFORNIA August 21, 1989 <br /> Upon the recovery of the soil samples, they were sealed, handled, <br /> and transported to the laboratory using accepted EPA protocol and <br /> procedures. The samples were delivered to Groundwater Technology, <br /> Inc. (GTEL) , a state-certified laboratory, located in Concord, <br /> California for chemical analysis. The samples were analyzed for <br /> Total Petroleum Hydrocarbons as Gasoline (THY Gas) , with Benzene, <br /> Toluene, Ethylbenzene, and Xylene (BTEX) distinction. The sample <br /> results are listed in Attachment 1, Laboratory Results and Sample <br /> Chain of custody. The samples are indicated as B-1-1, 8-2-1, <br /> B-3-1, and 8-4-1. <br /> The sample results indicate detectable levels of THP Gas in <br /> samples B-1-1 and 8-4-1 of 160 and 130 parts per million (ppm) , <br /> respectively. None of the samples have detectable levels of <br /> BTEX. This data suggests that there has likely been a discharge <br /> of gasoline materials into the subsurface materials, in the area <br /> believed to have formerly contained underground storage tanks. <br /> Should you have any questions regarding this information, please <br /> feel free to give us a call at (408) 997-1505. Thank you. <br /> i Sincerely, <br /> ENVIRONMENTAL CONSTRUCTION COMPANY, INC. <br /> Robert Whitman <br /> President <br /> Enclosures: <br /> Plate 1, Site !!ap <br /> Attachment 1; Laboratory Results and Sample Chain of Custody. <br /> joemell/rpt. <br /> 3 <br /> _J .,J <br />