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1 13 July 1998 AGE-NC Project No 96-0254 ' Page 2 of 7 ' equipment was washed in an Alconox solution and rinsed twice with water prior to each sampling run ' Both ends of the soil sleeve of each sample collected for laboratory analysis were covered with Teflon sheets, capped and sealed with tape The samples were stored in a chilled container and transported under chain-of-custody to MAI ' Selected samples were analyzed in accordance with EPA Methods • 5030/8015m for TPH-g, • 8020 for BTE&X, I • 8260 and 8260m for MTBE and other oxygenated fuel additives tertiary butyl alcohol (TBA), di-isopropyl ether(DIPS),ethyl tertiary butyl ether(ETBE) and tertiary amyl methyl ether (TAME) • During drilling, auger returns were monitored for the presence of organic vapor using an organic vapor analyzer (OVA) equipped with a photo-ionization detector (PID Thermo Environmental 580A, 10 0 eV, calibrated to isobutylene) Auger returns were placed in drums and stored on-site pending laboratory analysis and disposal at a licenced facility 212 LOGGING Duplicate soil samples were extruded from their sleeve or sampler body and were screened for the presence of organic vapor using the OVA The OVA readings were recorded on the boring logs The soil was then described in accordance with the Unified Soil Classification System (see Boring Logs, Appendix A) 2 13 WELL COMPLETION Borin s B10 BI I B12 B13 and B14 were completed asround water monitorin wells MW-2 MW-3, MW- 6, MW-5 and MWA, respectively Wells MW-1 and MW-2 were dual-completed using two 2-inch diameter, schedule 40 PVC casing, the other wells, MW-3 and MW-6, were constructed using single 2-inch diameter schedule 40 PVC casings The following is a summary of the construction details • Well MW-1 was completed with 0 02-inch slotted screen, the screen intervals were installed A&anced CeoEnl,Lronmental Inc I