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Ile- 27 April 2003 AGE-NC Project No 96-0235 ' Page 2 of 8 11 E by 6-Inch brass sleeves A 140-pound hammer was used to advance the sampler, the number of hammer blows required to advance the sampler over each 6-Inch increment of the 18-inch sampling interval was recorded on the boring logs Soil samples were preserved by covering both ends of the leading or other selected sleeve with Teflon sheets, capping with plastic and sealing with tape The samples were labeled, stored on ice ' and transported under chain-of-custody to Cal Tech Environmental Laboratories (CTEL) Sampling a quipment w as w ashed I n an A lconox s olution and r rased w ith w ater p nor t o e ach ' sampling run to minimize cross-contamination ' 212 Logging Soil was extruded from a second brass sleeve and was screened for the presence of organic vapor ' using an organic vapor meter (OVM) equipped with a photo-ionization detector (PID Thermo Environmental 580A, 10 0 eV, calibrated to isobutylene), and the OVM readings were recorded on the boring log The soil was then visually described In accordance with the Unified Soil lie Classification System ' 2 1 3 Laboratory Analyses of Soil Samples ' Selected soil samples collected from pilot borings MW-14B and MW-15B were analyzed for Total petroleum hydrocarbons quantified as gasoline (TPH-g),and as diesel (TPH-d) In accordance with EPA Method 8015M, and , ' - Benzene, toluene, ethylbenzene and total xylenes (BTEX) and fuel fuel additives ethyl tertiary-butyl ether(ETBE), di-isopropyl ether(DIPE),methyl tertiary-butyl ether(MTBE), ' tertiary-amyl methyl ether (TAME), tertiary-butyl alcohol (TBA), ethanol, methanol, 1,2-dibromoethane(EDB) and 1,2-dichloroethane (1,2-DCA) In accordance with 8260B 1 - 2 1 4 'Well Completions ' Pilot borings MW-14A/B and MW-15A/B were completed as ground water monitoring wells using two-Inch diameter PVC casing with 0 020-Inch slotted screen The screen was Installed from ' approximately 10 to 30 feetbsg In MW-14A and MW-15A,and from 65 to 70 feet bsg m wells MW- 14B and MW-15B,with blank casing extended to the surface The filter pack(No 3 Lonestar sand) . was Installed from the bottom of each boring to two feet above the screened intervals A nominal 2- Advanced GeoEnvi ron mental,Inc I