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a 1 09 April 2002 AGE-NC Project No. 97-0301 Page 6 of 14 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 Guidance Manual for Hazardous 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. I � - 3 .2. WELL INSTALLATION Based on soil and ground water data collected during the investigation of petroleum-hydrocarbon impact, AGE proposes installation of wells in the following areas : • One 6-inch diameter ground water extraction well (EW-1 ) located between 20 and 30 feet ` east of monitoring well MW- 1 and screened between 25 and 55 feet bsg; • One 2-inch diameter SVE well (VW- 1 ) located between 10 and 20 feet east of MW-5 and screened between 10 and 40 feet bsg; • One 2-inch diameter SVE well (VW-2) located between 20 and 30 feet southeast of MW-5 and screened between 10 and 40 feet bsg; _ One 2-inch diameter air sparge well (AW- 1) located between 10 and 20 feet east of MW- 1 and screened between 40 and 45 feet bsg; • One 2-inch diameter ozone sparge well (OSW- 1 ) located between 5 and 15 feet west- northwest of MW-7 and screened between 40 to 42 feet bsg; • One 2-inch diameter multi-level ground water monitoring well (MW-8) located approximately 20 to 30 feet east of MW- 1 and screen intervals at depths between 65 and 70 feet bsg), 95 and 100 feet bsg (B) and between 120 and 125 feet bsg (C); • One 2-inch diameter multi-level ground water monitoring well (MW-9) located approximately 60 to 80 feet south of MW-7 and screen intervals at depths between 30 and 40 feet bsg (A), 65 and 70 feet bsg (B), 95 and 100 feet bsg (C) and between 120 and 125 feet bsg (D); • One 2-inch diameter multi-level ground water monitoring well (MW-10) located approximately 45 to 65 feet east of MW-7 and screen intervals at depths between 30 and 40 feet bsg (A), 70 and 75 feet bsg (B), 95 and 100 feet bsg (C) and between 120 and 125 feet bsg (D); Advanced GcoEnvis onmental, Inc.