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I 1 01 September 1999 AGE-NC Project No 97-0301 ' Page 4 of 10 the following tasks Permitting and pre-field work activities, Drilling and soil sample collection, ' • Monitoring well installation and development, • Ground water sample collection ' • Receptor survey, • Preparation of a report of findings 3 1 PERMITTING AND PRE-FIELD WORK ACTIVITIES ' Applicable site assessment permits will be obtained from the PHS-END In addition, an update to the health and safety plan presently on-file Aill be prepared in accordance with Occupational Safety and Health Guidance Manual for Nazar dous Waste Site Activities (National Institute for Occupational Safety and Health Administration, U S Coast Guard and U S Environmental ' Protection Agency, 1985) Prior to mobilization, each monitoring well location will be clearly marked and a utility clearance obtained through Underground Service Alert ' 32 DRILLING AND SOIL SAMPLE COLLECTION ' AGE proposes to install six ground water monitoring wells at the site as part of site assessment activities Proposed well locations are illustrated in Figure 2 ' Based on soil and ground water contamination encountered beneath the fonner UST area AGE proposes ground water monitoring well installations in the following locations • Between 10 and 20 feet southeast of boring P-4 to assess dissolved petroleum hydrocarbon concentrations near the former UST area, • Between 40 and 50 feet south-southwest of boring P-3 to assess the extent of dissolved petroleum hydrocarbons up-gradient (southwest) of the former UST area, • Between 30 and 40 feet northwest of boring P-4 to assess the extent of dissolved petroleum hydrocarbons cross-gradient of the former UST area, Between 30 and 40 feet northeast of boring P-4 to assess the extent of dissolved petroleum Advanced GcoEn%iron mental Inc