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I <br /> TANK CLOSURE REPORT--BEACON STATION #494 -3- <br /> 2185 East Fremont Street, Stockton, CA <br /> A► W Project No 19005 04 <br /> 3.0 PRODUCT PIPING TRENCH SOIL SAMPLING <br /> On March 8, 1993, four soil samples were collected from locations beneath the former product <br /> distribution lines and the fuel dispensers Locations of the former product distribution lutes and <br /> the fuel dispensers are illustrated on Figure 3 along with collection locations of soil samples P1 <br /> through P4 Soil sample locations were discussed with Ms Carol Oz of San Joaquin County <br /> The soil samples were collected by driving an impact sampler fitted with a 2-inch-diameter brass <br /> tube into the soil retrieved with a backhoe bucket from approximately 4.5 feet below grade Soil <br /> samples were submitted for analysis of BTEX, TPHg, EDB, and total lead <br /> R None of the four soil samples collected from beneath the product piping lutes contained <br /> measurable amounts of TPHg or EDB The soil sample with the highest total lead concentration <br /> (P2) contained 8.2 mg/kg Soil sample analytical results are compiled in Table 2, and copies <br /> of certified laboratory reports are contained in Appendix D <br /> TABLE 2 <br /> PRODUCT DISTRIBUTION LINE SOIL SAMPLE ANALYTICAL RESULTS` <br /> MARCH 6, 1993 <br /> t Concentrations to milligrams per kilogram (mg/kg) <br /> Sample, Total <br /> t+ i[.D, Benzene Toluene Ethylbenzene Xylenes TPIP EDBb Lead <br /> P1 <0 0050 100051 <0 0050 0 014 <0 50 <0 010 82 <br /> P2 <0 0050 <0 0050 <0 0050 <0 0050 <0 50 <0 010 92 <br /> P3 <0 0050 <0 0050 <0 0050 <0 0050 <0 50 <0 010 71 <br /> { P4 <0 0050 -<O 0050 <0 0050 <0 0050 <0 50 <0 010 77 <br /> 'TPH = total petroleum hydrocarbons as gasoline <br /> bEDB = ethylene dibromsde <br /> I <br />