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r �r i■r rr r rr r rr r r r r r � r �■ r i■■r ■� TABLE 3 SUMMARY OF MONITORING WELL DETAILS RAINWATER CAR WASH 420 West Yosemite Avenue, Manteca, Callfomia Well Installation Borehole Casing Casing Slot Casing Screen Filter Pack Bentonite Grout I D Date Diameter Total Depth Diameter Material Size Elevation Interval Interval Interval Interval MW-12F 10-08-02 8-inch 170 ft 17-inch polyethylene 0 02-inch 3214 165 to 170 ft 163 to 170 ft 145%2 to 163 ft 1 to 25 ft MW-13A 10-09-02 8-inch 170 ft 17-inch polyethylene 0 02-inch 3227 30 to 35 ft 28 to 35%2 ft 25 to 28 ft 1 to 25 ft MW-13B 10-09-02 8-inch 170 ft 1 7-inch polyethylene 0 02-inch 3227 60 to 65 ft 58 to 65%2 ft 35%2 to 58 ft 1 to 25 ft MW-13C I0-09-02 8-inch 170 ft 17-inch polyethylene 0 02-inch 3227 85 to 90 ft 83 to 90'/2 ft 65%2 to 83 ft I to 25 ft MW-13D 10-09-02 8-inch 170 ft 1 7-inch polyethylene 0 02-inch 3227 115 to 120 ft 113 to 120'/2 ft 90%2 to 113 ft 1 to 25 ft MW-13E 10-09-02 8-inch 170 ft i 7-inch polyethylene 0 02-inch 3227 140 to 145 ft 138 to 145'/2 ft 120%2 to 138 ft 1 to 25 ft ME-13F 10-09-02 8-inch t70 ft 1 7-inch polyethylene 0 02-inch 3227 165 to 170 ft 163 to 170 ft 145%2 to 163 ft 1 to 25 ft EW-1 03-30-01 12-inch 45 ft 6-inch PVC 0 03-inch 31 76 20 to 45 ft 18 to 45 ft 16 to 18 ft 1 to 16 ft Notes ft feet below surface grade PVC polyvinylchloride Well casing elevations relative to City of Manteca Bench Mark Datum No 48 Well casing elevations re-surveyed by Baumbach&Piazza Inc on 22 June 2004 relative to BM#49 Advanced GeoEnvironmental,Inc