Laserfiche WebLink
Clayton <br /> Table 4 <br /> Analytical Findings of the Aerated Soils <br /> 1rPA E "A F.1?A EPA ' Method Fxt actabid <br /> < MetiiQd 1�tetbad 141etbod 'Method 802i1 f�ydre�rbaas; <br /> &32€3 3020 t342Q !3420" 'TP#x as " as 4i1 and <br /> Satupte SeAzeife roYuene )~tliylhetene �yienes Gasoline Grease ;� <br /> klsitlfirattott>< ....f Y" { <br /> :b ..: -.. `: b) <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 i0o <br /> SQ-3 ND 21 ND ND ND 2Hj <br /> SO4 ND 60 ND ND ND. 140 <br /> SO-5 ND 32 ND ND ND 100 <br /> ppb = parts per billion <br /> ppm = parts per mi.'lion <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 0.2 ppm <br /> Total extractable hydrocarbons concentrations as oil and grease ranged from 511 ;:• <br /> ppm to 300 ppm. After discussing the results with Ms. Diane Hinson of <br /> PHS/E1-ID, Clayton recommended backfilling the excavation pit with the aerated <br /> Soil. <br /> -5.4 SOIL BACKFILLING AND COMPACTION <br /> Mr. Tom Ramsey, of Fuel Oil Polishing Company, began backfilling the excavated <br /> pit on October 18, 1990: <br /> • Because the groundwater table was shallow (S to 10 feet bgs), Fuel Oil <br /> Polishing placed 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 />