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' 14 August 2000 <br /> • AGE-NC Project No 95-0128 <br /> Page 3of10 <br /> The wells were then grouted to near the surface with portland cement Water-tight, traffic-rated well <br /> boxes were then installed over the wells As built well diagrams are depicted on the boring logs in <br /> Appendix A <br /> 24 LABORATORY ANALYSES OF SOIL SAMPLES <br /> Selected soil samples were analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) and diesel (TPH-d) in <br /> accordance with EPA Method 8015 Modified, <br /> • Volatile aromatic hydrocarbons benzene, toluene, ethylbenzene and total xylenes (BTEX) <br /> in accordance with EPA Method 8020, and <br /> • Oxygenated compounds di-isopropyl ether(DIPE),ethyl tertiary-butyl ether(ETBE),methyl <br /> tertiary-butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA), <br /> methanol, and ethanol in accordance with EPA Method 8260-Modified, respectively <br /> r• <br /> 25 MONITORING WELL PURGE PROCEDURES <br /> IOn 26 April 2000, a Solinst water level meter was used to measure the depth to ground water in <br /> monitoring wells MW1 through MW7 and vapor well VW1 <br /> After depth to ground water measurements, a minimum of 3 standing water casing volumes of water <br /> was purged from each well to be sampled using a PVC submersible two-stage pump Approximately <br /> I12 gallons of water were removed from vapor well VW-1, 26 gallons of water were removed from <br /> well MW-1, 22 gallons from wells MW-2 and MW-3, 13 gallons water were removed from wells <br /> I MW-4 and MW-5, 12 gallons of water were removed from well MW-6 and MW-7 Temperature, <br /> pH and conductivity of purged ground water were measured at 3-gallon and 4-gallon intervals, as <br /> appropriate for each well, using a Hydac water analyzer The field data and field sheets are included <br /> in Appendix B Purged water was temporarily stored on-site in 55-gallon DOT-approved H-17 <br /> S41-- <br /> tela ;-,U1 u111j�'G11U1n 1upi;l ulj vocll 1'C- <br /> Ilkiwill 'Lir Ill , Lhe W,-PL11 to 1ol'lild 1'Y attar Was 111VaJUrVd <br /> N�" g p--N�_ p g p g _g 1' <br /> to ensure that a minimum of 80% well-volume recharge had been achieved prior to sampling <br /> On 20 June 2000, a Solinst water level meter was used to measure the depth to ground water in <br /> monitoring wells MW-8 through MW-10 and MW-i IA and MW-11B,and MW-12A and MW-12B <br /> Advanced Gen Environmental Inc <br />