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, M 15 November 2005 AGE-NC Protect No 95-0130 Page 7 of 10 3 1 PERMITTING AND PRE-FIELD WORK ACTIVITIES A site assessment boring permit will be obtained from the EHD for all off-site CPT boring locations and encroachment permits will be obtained from the City of Stockton Public Work Department An update to the health and safety plan presently on-file 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 mobilization, each boring location area will be clearly marked and a utility clearance obtained through Underground Service Alert 3 2 CPT DRILLING AND SAMPLE COLLECTION Utilizing a 25-ton truck-mounted CPT drill rig equipped with 13/a-inch diameter hollow-stem rods, AGE proposes to advance three CPT soil borings to help define the lateral extent of petroleum-impacted ground water(i a MTBE) AGE proposes to advance each CPT soil borings to depths of approximately 125 feet below surface grade (bsg) to fully assess contaminant impact to shallow and deeper zone ground water The soil borings will be advanced at the following locations (Figure 2) • CPT boring no 4 (CPT-4) will be located in the center northbound land of Wilson Way, approximately 15-25 feet south of the Market Street-Wilson Way intersection and approximately 40-50 feet east of MW-3 • CPT boring no 5 (CPT-5) will be located in the center northbound land of Wilson Way, approximately 40-50 feet east of Top Filling Station well MW-6 • CPT boring no 6 (CPT-6) will be located in the center northbound land of Wilson Way, approximately 45-55 feet east-southeast of MW-2 • CPT boring no 7 (CPT-7) will be located in the center northbound land of Wilson Way, approximately 55-65 feet southeast of MW-4 A section on of the center northbound 1 ane of South Wilson Way will be closed dun n gall drilling activities, efforts will be made to minimize the impacts on the roadway traffic and to ensure work- site safety Each of the proposed CPT locations will consist of multiple 13/4-inch boreholes The first CPT boring at each location will be utilized for cone penetrometer testing, the CPT will acquire a continuous lithologic record to interpret the stratigraphic and hydrogeologic units Based on interpreted Advanced GeoEnvlronmental,Inc