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I <br /> Site Background Information former Blue Star Gasoline <br /> • Page 3 of 3 <br /> installed at the site and completed using 2-inch diameter, Schedule 40 polyvinylchloride (PVC <br /> ) <br /> casing with a 0 020-inch slotted screen installed from 60 feet to 80 feet bsg Pilot boring MW-l was <br /> filled with No 3 Lonestar sand from 85 feet to 80 feet bsg in order to set the well at 80 feet bsg A <br /> total of thirteen soil samples were analyzed for petroleum constituents listed, no analytes were <br /> detected at or above laboratory detection limits in the soil samples analyzed Analytical results of <br /> I soil and samples are included in Table 1 of this appendix <br /> NU 0'1Y i � WA' 6111'r <br /> 'o-rirITi: (g z�Pg i L /i�40L <br /> To date, the lateral extent of petroleum hydrocarbon tamination is defined to the west by well <br /> MW-2 and to the north (up-gradient) by well MW- , the lateral extent of petroleum hydrocarbon <br /> contamination is not yet defined to the south or east of well MW-1 <br /> STRATIGRAPHY <br /> In general, silt and clayey silt were encountered from surface grade to 50 feet bsg in MW-1, 67 feet <br /> bsg in MW-2, and 77 feet in MW-3, underlain by alternating layers of silty sand, sandy silt, sand, <br /> Isilt, and clayey silt to the total depths of the borings (80 feet to 85 feet bsg) <br /> 1 <br /> i <br /> I <br /> 1 <br /> 1 <br /> Advanced GeoEnvironmental,Inc <br />