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06/02/1993 15: 16 FROM ROGER FOOTT ASS- WSAE TO 12094640138 P.62 y <br /> ROCS ER <br /> FGDTT <br /> ASSOC IATE5 D �� <br /> JUN. 0 <br /> 2 1993 ' <br /> lune21993 <br /> 01 <br /> 312-OU1 ENVIRONMEMa HE-PERMIT/SERVICES <br /> Mr.John Pollock i <br /> 1858 Sentry Park East,#1900 <br /> Los Angeles,California 90067 <br /> Subject: Work'Plan for Site Investigation <br /> Clements Garage, 18633 East Highway 88 <br /> Clements,California <br /> Dear Mr.Pollock: <br /> This Work Plan describes a proposed subsurface envfmnmental investigation <br /> designed to evaluate the concentration of soluable'lead in soil beneath a former <br /> underground leaded gasoline storage tank at the Clements Garage"facility located at <br /> 18633 East Highway 88 in Dements,California. The 350-gaBon tan,k was discovered <br /> and removed in November,1990. The approximate'locatiou of the`former tank and <br /> proposed boring location are shown on the attached Generalized Site plan Figure i <br /> 2). <br /> BACKGROUND <br /> Four underground storage tanks were removed from the site in 1987 or 1988. <br /> Soil samples collected from beneath the tanks-indicated that the soil did not contain <br /> petroleum hydrocarbons. San Joaquin Local Health Department(S;1LHD)closed <br /> the site file at that time. <br /> In November, 1990,an additional 350-gallon leaded gasoline storage tank vias <br /> discovered during excavation in.a city right-of-way on the site_ T'heunk was <br /> removed by Western Meter Service,Inc.,of Lodi.California on November 6, 1990. A <br /> soil sample was collected beneath the excavation at a depth of approjinately 7 ft. <br /> Laboratory analysis of the soil sample indicated that 0.0094 ppm total xylene.isomers <br /> and 26 ppm total lead was detected in the sample. Total petroleum hydrocarbons in <br /> 1450 1^1arbi>r BoWevard,Suite G• Weo 5acramentv,CA'95691 • (41f)y 3355^2580 • Fax (916) 325-2570 <br />