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OBJECTIVE AND SCOPE OF SITE ASSESSMENT The work performed for this investigation included locating underground utilities, obtaining permits.from the PHS\EHD; drilling and advancing three soil borings to.depths of 22 feet to 25 i feet; installing three groundwater monitoring wells in the borings; surveying, developing and sampling the wells; and, submitting selected soil-and groundwater samples for laboratory analysis. The purpose of this work was to determine if the soil and groundwater beneath the site has been r, impacted by the former USTs. r' All drilling activities were performed under the supervision of a Smith Environmental field geologist. All site work was performed in accordance with the field methods and Site Safety and Health Plan included in Smith Environmental's "Workplan for Site Investigation" (June 23, 1995). ham✓ !FIELD INVESTIGATION ' Soil Borings On July 18, 1995, three soil borings (B 1, B2,-and 83) were advanced to depths of approximately 22 to 26.5 feet in locations upgradient and downgradient from the_former USTs. The borings i were advanced using 8-inch outside diameter hollow stem:augers: All drilling was performed by Spectrum Exploration, Inc. (Spectrum, C57 #512268). Clean augers were used to drill each boring. Drill cuttings were placed in 55-g4llon drums approved for hazardous waste storage and stored on site pending laboratory analysis. Soil sam les were collected at five foot intervals and P g rY Y p field screened with a photo ionization detector (PID) for evidence of volatile organic compounds (VOCs). PID readings were low, less than-4.5 parts per million (ppm), in boring B 1. However, PID readings were elevated in borings B2 and B3 from 6 to 12 feet below ground surface (bgs). Groundwater was encountered in the-borings at depths ranging from 6.8 to 8.8 feet bgs. N:\95122\PAR.doc - SKFR