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Cla% told <br /> Table 4 <br /> Analytical Findings of the Aerated Solis <br /> EPA <br /> LPA BPA F-PA PA Mediod Extractable <br /> MethW Method Method Method 8MG Hydrocarbons <br /> $U2t1 30210 8M 80M 'T?H as as OU and <br /> S=p1e BoweAe Toluene, Ethylbenzeae Xylenes Gasoline Grease <br /> ld0ittif:m lon (ppb) (Ppb) lx (ppb) (PPM) <br /> SP-1 ND 50 ND ND ND 100 <br /> PW-1 ND 130 ND ND ND 50 <br /> PE-1 ND 120 ND ND ND 300 + <br /> SO-1 ND 130 ND ND ND 210 <br /> SO-2 ND 220 ND ND ND 100 <br /> SO-3 ND 21 ND ND ND 250 <br /> SO-4 ND 60 ND ND ND 140 <br /> SO-5 ND 1 32 ND ND ND I00 <br /> ppb = parts per billion <br /> ppm = parts per million <br /> TPH = Total Petroleum Hydrocarbons <br /> ND = Below the detection limit (Not Detected) <br /> Soil sample SP-1 was analyzed for purgeable halocarbons, total lead, and soluble <br /> lead The results were; <br /> • Purgeable Halocarbons not detected <br /> • Total Lead 22 ppm <br /> - Soluble Lead 02 ppm <br /> Total extractable hydrocarbons concentrations as oil and grease ranged from 50 <br /> ppm to 300 ppm After discussing 'he results with Ms Diane Hinson of <br /> PHSIEHD, Clayton i ecommended backfilling the excavation pit with the aerated <br /> soil. <br /> 54 SOIL BACKFILLING AND COMPACTION <br /> Mr. Tom Ramsey, of Fuel Oil Polishing Company, began back-Filling the excavated <br /> pit on October 18, 1990. <br /> • Because: the groundwater table: was shallow (8 to 10 feet bgs), Fuel Oil <br /> Polishing planed a layer of clean imported gravel in the bottom, of the <br /> excavation This gravel established a suitable base for operation of soil <br /> compaction equipment. <br /> -6- <br /> 1"314A RLP <br />