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Appendix D - Summary of soil sampling results. PP �Y Sample Number a Location Parametersb Results(mg/kg) U874-D1U1-2-5' Two ft beneath piping on TEPH as Diesel <2 north edge of tank Benzene <0.005 (2)c excavation. Toluene <0.005 Ethylbenzene <0.005 Xylenes <0.005 U874-D1U1-3-4.7' Above tank,north side of TEPH as Diesel 4,400 fill pipe at connection to Benzene <0.005 (3)c tank. Toluene <0.005 Ethylbenzene <0.005 Xylenes <0.005 U874-D1U1-4-4.6' Above tank,south side of TEPH as Diesel 2,300 fill pipe at connection to Benzene <0.005 (4)c tank. Toluene <0.005 Ethylbenzene <0.005 Xylenes <0.005 U874-D1U1-5-15' Two ft beneath floor of tank TEPH as Diesel <2 excavation,east end. Benzene <0.005 (5)c Toluene <0.005 Ethylbenzene <0.005 Xylenes <0.005 U874-D1U1-6-15' Two ft beneath floor of tank TEPH as Diesel 65 excavation,west end. Benzene <0.005 (6)c Toluene <0.005 Ethylbenzene <0.005 Xylenes <0.005 U874-D1U1-7-6' Three ft beneath piping,in TEPH as Diesel <2 piping excavation. Benzene <0.04 (7)c Chlorobenzene <0.03 1,2-dichlorobenzene <0.05 1,3-dichlorobenzene <0.03 1,4-dichlorobenzene <0.05 Ethylbenzene <0.03 Toluene <0.02 Xylenes <0.04 a Depths in sample number are measured from grade level. b Determined by EPA Methods 8015/3550 Total Extractable Petroleum Hydrocarbons (TEPH) and 8020 BTE and X/Purgeable Aromatics. c Sample designation from closure plan.