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22 May 1998 <br /> ► AGE-NC Project No. 95-0152 <br /> Page 3 of 7 <br /> 3.0. PROCEDURES <br /> 3.1. SCOPE OF WORK <br /> The scope of work for this investigation included advancement of one continuous soil probe boring, <br /> collection of soil samples, collection of one domestic water well sample, performance of a well <br /> survey and preparation of this site assessment report. <br /> 3.2. SOIL PROBE BORING ACTIVITIES <br /> ► <br /> On 07 May 1998,one soil probe borings(P5)was advanced 10 feet west of the former UST area and <br /> to a depth of 40 feet bsg. Advancement of the probe boring was accomplished utilizing the "direct <br /> push"technology of a van-mounted Geoprobe 5400 equipped with 1.125-inch diameter probe rods <br /> and an attached 2.15-inch diameter continuous core soil sampler. The location of probe boring P5 <br /> is depicted on Figure No. 2. <br /> 3.2.1. Soil Probe Boring Sample Collection <br /> Discrete soil samples were continuously cored from P5 utilizing a Geoprobe Macro-core sampler <br /> with 48-inch acetate sleeves. Selected soil samples were preserved by cutting a six-inch section and <br /> covering both ends of the selected section with Teflon sheets, capping, and sealing with tape. Each <br /> sample sleeve was labeled with soil probe boring designation, depth, time, date and sampler's <br /> initials. <br /> Selected soil samples were stored in a chilled container and transported under a chain-of-custody to <br /> a state-certified laboratory for analysis by EPA Method 8015-m for TPH-g, by EPA Method 8020 <br /> for volatile aromatics (benzene, toluene, ethylbenzene and xylenes: BTE&X) with methyl-tertiary <br /> butyl ether (MTBE), and by EPA Method 8260 for tertiary butanol (TBA), di-isopropyl ether <br /> �. (DIPE), ethyl tert butyl ether (ETBE) and tert amyl methyl ether (TAME), and to confirm and <br /> quantify any MTBE detected by EPA Method 8020. <br /> 3.2.2. Boring Logs <br /> During soil probe boring activities, sample duplicates were monitored for the presence of organic <br /> vapor using a photo-ionization detector(PID: Thermo Environmental 580A, 10.0 eV, calibrated to <br /> ► <br /> isobutylene) and were described on boring logs using the Unified Soil Classification System <br /> (USCS). Boring logs are included in Appendix A. <br /> Advanced GeoEnviron mental,Inc. <br />