Laserfiche WebLink
Ms. Carol Oz <br /> August 12, 1999 Project 791700 <br /> Page 6 <br /> 0.545 mg/kg, MTBE was detected in all four sidewall samples with concentrations <br /> ranging from 0.221 to 23.9 m ns <br /> reporting limits. See Table 1 fo��aOtical roesu�ts and Appendix enates d exceed laboratory method <br /> analytical reports. C for copies of certified <br /> Piping Excavation and Dispenser Soil Samples <br /> Soil samples PL-1 through PL-5 and PL-7 through PL-12 did not contain TPHG <br /> benzene. TPHG was detected at 7,040 msample or <br /> Piping trenches at 5 feet bgs. Limited overe at on was conducted PL-at pipcollected from the <br /> le <br /> PL-6 (5 feet bgs). The sample collected at 7 feet bgs contained TPHG at n concentratne ion <br /> of <br /> of 3,020 mg/kg. The detected benzene concentrations in sample PL-6 (5 feet and PL-6 n <br /> feet) were 5.06 mg/kg and 0.634 mvely. ) (7 <br /> samples with concentrations ranging from 0.114 to 19.6 Ing/kg.TBE was detected in five soil <br /> at PL-6 (5 feet) was 88.9 m The MTBE concentrations <br /> g/kg and the concentrations decreased to 11.9 mg/kg in the <br /> sample collected at 7 feet bgs. <br /> Five soil samples were collected along the vapor recovery line excavation. All <br /> five vapor <br /> recovery line soil samples were below laboratory detection limits for petroleum <br /> hydrocarbon constituents. <br /> Seven dispenser samples did not contain TPHG and benzene was not detected in an <br /> the eight samples. Dispenser island soil sample D-2 contained TPHG at a concentration of <br /> of <br /> 1.2 mg/kg and MTBE was below laboratory detection limits. An additional sample was <br /> taken from between the locations of samples D-7 and D-8 (D-7/8) at 7 feet bgs due to to hi as <br /> PID readings. Analytical results of dispenser soil samples D-3 and D-4 indicated lowconcentrations of BTEX constituents. Soil sample D-3 contained concentrations of <br /> toluene and total xylenes detected at concentrations of 0.0155 and 0.0247 m <br /> respectively. Soil sample D-4 contained total xylenes at a concentration of 0.00874 <br /> mg/kg. Oxygenates analyzed using USEPA Method 8260 detected MTBE in three <br /> samples, ranging from 0.0629 to 41.7 mg/kg. Total lead was present in product Piping line <br /> soil sample PL-6 (5') at a concentration of 25.6 mg/kg. p g <br /> samples, oxygenates were below laboratory detection)limits. SeelTablher dispenser soil <br /> results and Appendix B for copies of certified analytical reports. le 1 for analytical <br /> Soil Stockpiles <br /> Soil stockpile SP-1 contained approximately 1,000 cubic yards of soil ggenerated fr <br /> UST excavation and associated product line and dispenser trenching. Soil s °m the <br /> g stockpile <br /> CPIE:'ARCO'2186\R f PORTS\2186 P 105.DOC-951sg:1 <br /> P4"4& <br />