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r_ TABLE 1 v SUMMARY OF MONITORING WELL/EXTRACTION WELL DETAILS FLAG CITY CHEVRON 6421 Capitol Road, Lodi, California Well Installation Borehole Total Casing Casing Slot Casing Screen Filter Pack I Bentonite Grout Aquifter I D Date Diameter Depth Diameter Material Size Elevation Interval Interval Interval Interval Zone EW-4 09 October 12-inch 35'/2 ft 4-inch PVC 0 02-inch 1270 10 to 35 ft 8 to 35 ft 5%2 to 8 ft 1 to 5'/s li First Zone 2000 EW-5 09 October 12-inch 34'/2 ft 4-inch PVC 0 02-tech 1229 9 to 34 ft 8 to 34'/2 ft 8 to 34'/2 ft 6 to 8 ft First Zone 2000 EW-6 11 October 12-inch 35'112 ft 4-inch PVC 0 02-inch 11 45 l0 to 35 ft 8 to 35'/2 ft 5 to 8 ft 1 to 5 ft First Zone 2000 EW-7 10 October 12-tnch 35 ft 4-inch PVC 0 02-inch 1180 9%2 to 34'/2 ft 8 to 35 ft 5 to 8 ft 1 to 5 ft First Zone 2000 EW-8 11 October 12-inch 36 ft 4-inch PVC 0 02-inch 1141 10'/2 to 35'/2 ft 8 to 36 ft 5 to 8 ft 1 to 5 ft First Zone 2000 EW-9 16 October 12-tnch 35 ft 4-inch PVC 0 02-inch 1191 9'/2 to 34'/2 ft 8 to 35 ft 5 to 8 ft 1 to 5 ft First Zone 2000 EW-10 17 October 12-inch 35'/2 I 4-inch PVC 0 02-inch 1172 8 to 35 ft 8 to 351/2ft 5 to 8 ft 1 to 5 ft First Zone 2000 Notes ft feet below surface grade PVC poiyvinyichloride ' well construction reported to AGE by the San Joaquin County Public Health Services-Environmental Health Division Well casing elevations resurveyed by Baumbach&Piazza Inc on 10 June 2004,all elevations relative to National Geodlc Suvey datum C 464(NAVD88) Advanced GeoEnvironmental,Inc