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13 June 1995 AGE-NC-'9'5-0125 Page 3 of 5 2.5. . : GROUND WATER DEPTH AND FLOW DERECTION -Based upon data collected during the October/November 1994 monitoring; ground water depth at the site is approximately 8 feet. The flow direction is northerly. 3.0. SCOPE OF WORK AGE proposes to advance four(4)borings at the site"t complete assessment of impacted soil and ground water: The borings-will be-advanced•by "direr push" technology using'a Geoprobe.- Soil samples will be-collected at five-foot intervals in each penetration. Grab ground water samples will also be collected from two of the penetrations. One penetration will be placed west of MW-6. A second penetration.wiIl:be placed approximately n 20 feet north of the former dispenser island. A third penetrations will be placed within the former UST area. The.fourth penetration will be placed between MW-1 and MW-8 in Hansen Road. Approximate locations of the penetrations are illustrated on Figure 2. Each monitoring well at the site will also be sampled during this investigation:- 4.0. PROCEDURES 4.1. COLLECTION OF SOIL AND GROUND-W TER GRAB SAMPLES For the collection of soil and ground water samples, the following procedures will be performed: 1) Notify the PHS-EHD 48 hours prior to comme cement of any work. 2) Install three probings,-using van-r counted, 1.125-inch diameter probe rods to depths of approximately 40 feet. The boring locations are depicted on Figure 2. 3)- Decontaminate sampling equipment in an alcon x solution and rinse twice with water prior to each sampling run: 4) Obtain discrete soil samples at five-foot intervals, using a Geoprobe soil sampler'assembiy loaded with pre-cleaned 1.125-inch by 6-inch brass sleeves. 5) Preserve'soil in the lead brass`sleeve by covering both'ends with aluminum foil or Teflon sheets, capping, and sealing with tape.