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• 11 March 2002 AGE-NC Project No. 95-0130 ' Page 6 of 13 including: a 24-hour ground water extraction pilot test,an 8-hour SVE pilot test,a 48-hour IAS pilot test and an 8-hour combined S VEDAS pilot test. The scope of work will consist of the following tasks: • Permitting, planning and pre-field work activities; ' 0 Drilling and well installation; • Performance of a 24-hour ground water aquifer pumping test; ' Performance of an 8-hour SVE pilot test; • Performance of a 48-hour 1AS pilot test; • Performance of an 8-hour SVE/IAS pilot test; and • Preparation of a PAR and a revised RAP. • 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES Applicable site assessment permits will be submitted to the SJCEHD.As required by SJCEHD permitting,a health and safety plan will be prepared in accordance with Occupational Safety and Health GuidanceManualforHazardous Waste Site Activities(National Institute for Occupational Safety and Health Administration, U.S. Coast Guard and U.S. Environmental Protection ' Agency, 1985). Prior to drilling activities, each proposed drilling location will be clearly marked and a utility clearance obtained through Underground Service Alert. 3.2. WELL INSTALLATION ' Based on soil and ground water data collected during the investigation of petroleum- hydrocarbon impact, AGE proposes installation of nine wells in the following areas: ' One 6-inch diameter ground water extraction well (EW-1) located approximately 5 to 15 feet east of soil vapor extraction well VW-3 and screened between 35 and 55 feet bsg; • One 4-inch diameter SVE well(VW-4) located approximately 15 to 25 feet southwest of VW-3 and screened between 10 and 40 feet bsg; • One 2-inch diameter IAS well (AW-1) located approximately 5 to 15 feet northeast of • soil vapor extraction well VW-2 and screened between 50 and 55 feet bsg; • One 2-inch diameter ground water monitoring well (MW-8) located approximately 10 Advanced GeoEnvironmental,Inc.