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r+ •-CI�Y_ - f Ly L .. c y v T r .. 5. y .. "' -.www <br /> 5 <br /> t <br /> 23 December 1998 <br /> AGE-NC Project No 96-0235 <br /> Page 2 of 7 <br /> r <br /> r Total petroleum hydrocarbons quantified as gasoline (TPH-g) and diesel (TPH-d) in, <br /> accordance with EPA Methods 5030 and 8015m <br /> • Volatile aromatic hydrocarbons (benzene, toluene, ethylbenzene and total xylenes,-BTEX) <br /> rwith methyl tertiary-butyl ether (MTBE) in accordance with EPA Method 8020 <br /> • Oxygenated compounds (di-isopropyl ether [DIPE], ethyl tertiary-butyl ether [ETBE], <br /> r MTBE, tertiary-amyl methyl ether [TAME] and tertiary butanol {TBA]) In accordance with <br /> EPA Method 8260 Modified <br /> r . <br /> 22 LOGGING <br /> rSoil was extruded from the second brass sleeve and screened for the presence of organic vapor using <br /> an organic vapor meter equipped with a photo-Ionization detector (PID Thermo Environmental <br /> r 580A, 10 0 eV, calibrated to isobutylene), and the readings were recorded on the boring log The soil <br /> was then visually described in accordance with the Unified Soil Classification System(see Appendix <br /> A -Boring Logs) <br /> r23 WELL COMPLETION <br /> Borings MW-6 and MW-8 were overdrilled using 10-inch diameter hollow-stem augers to a total <br /> r depth of 45 feet bsg and were dual-completed as ground water monitoring wells using two-inch <br /> diameter PVC casing with 0 020-inch slotted screen installed from 45 feet to 40 feet bsg with blank <br /> casing extended to the surface The filter pack (No 3 Lonestar sand) was installed from 45 feet to <br /> r 38 feet bsg Bentonite"Pel Plug"was installed from 38 feet to approximately 31 feet bsg A second <br /> screened PVC casing was installed from 30 feet to 10 feet bsg with blank casing extendingrto the <br /> surface The filter pick was installed from approximately 31 feet to 8 feet bsg and bentonite pellets <br /> r were installed from 8 feet to approximately 6 feet bsg and hydrated A stainless steel bailer was used <br /> to surge the wells and set the sand pack prior to the installation of each bentonite plug The well was <br /> then grouted from 6 feet bsg to the surface with portland cement A water-tight, traffic-rated well <br /> rbox was then installed over the wells _ <br /> r Boring MW-7 was single-completed with the screened intervals installed from 30 feet to 10 feet bsg <br /> The filter pack was Installed from 30 feet to 8 feet bsg and bentonite pellets installed from 8 feet to <br /> 6 feet bsg The well was then grouted to the surface with portland,cement For surveying, monitoring <br /> r and sampling purposes, the upper screened Interval for each dual-completed well was labeled "A", <br /> while the lower screened interval was labeled "B" The well locations are shown on Figure 2 <br /> r <br /> Advanced GeoEn�tronmental,Inc <br /> r <br />