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TABLE 9 - CONTINUED Summary of Monitonng Well/Extraction Well Details FLAG CITY CHEVRON 6421 Capitol Road, Lodi, California Well Installation Date Borehole Total Casing Casing Slot Casing Screen Filterpack Bentonite Grout Aquifier 1 D Diameter Depth Diameter Material Size Elevation Interval Interval Interval Interval Zone W-14 11 October 2002 8%4-inch 60 ft 2-inch PVC 0 02-inch 842 40 to 60 ft 38 to 60 ft 35 to 38 ft 1 to 35 ft Second Zone W-15 11 October 2002 8%4-inch 75 ft 2-inch PVC 0 02-inch 833 65 to 75 ft 63 to 75 ft 60 to 63 ft 1 to 60 ft Rocky's Upper Zone W-16 09 October 2002 81/4-inch 25 ft 2-inch PVC 0 02-inch 798 5 to 25 ft 4 to 25 ft 3 to 4 ft 1 to 3 ft First Zone W-17 09 October 2002 8`/4-inch 60 ft 2-inch PVC 0 02-inch 792 40 t0 60 ft 38 to 60 ft 35 to 38 ft 30 to 35 ft Second Zone W-18 09 October 2002 81/4-inch 75 ft 2-inch PVC 0 02-inch 789 65 to 75 ft 63 to 75 ft 60 to 63 ft 1 to 60 ft Rocky's Upper Zone EW-1 28 March 2000 10'/-inch 35 ft 6-inch PVC 0 02-inch --- 8%2 to 33'/2 ft 6'/z to 35 ft 4'/z to 6'/z ft 1 to 4%z ft First Zone EW-2 1 17 July 2000 10'/-inch 35 ft 4-inch PVC 0 02-inch --- 10 to 35 ft 8 to 50 ft 6 to 8 ft 1 to 6 ft First Zone EW-3 17 July 2000 10'/4-inch 50 ft 4-inch PVC 0 02-inch --- 40 to 50 ft 37'/2 to 50 ft 35 to 371/2 ft 1 to 35 ft Second Zone EW-4 09 October 2000 12-inch 35'h ft 4-inch PVC 0 02-inch --- 10 to 35 ft 8 to 35 ft 5'/2 to 8 ft 1 to 5'/z ft First Zone EW-5 09 October 2000 12-inch34'/2 ft 4-inch PVC 0 02-inch --- 9 to 34 ft 8 to 34'/2 ft 8 to 34%2 ft 6 to 8 ft First Zone EW-6 11 October 2000 12-inch 35'/2 ft 4-inch PVC 0 02-inch --- 10 to 35 ft 8 to 35'/2.ft 5 to 8 ft 1 to 5 ft First Zone EW-7 10 October 2000 12-inch 35 ft 4-mch PVC 0 02-inch --- 9'/z to 34'/2 ft 8 to 35 ft 5 to 8 ft 1 to 5 ft First Zone EW-8 i 1 October 2000 12-inch 36 ft 4-mch PVC 0 02-inch --- 10%2 to 35'/2 ft 8 to 36 ft 5 to 8 ft 1 to 5 ft First Zone EW-9 16 October 2000 12-inch 35 ft 4-inch PVC 0 02-inch --- 9%2 to 34%2 ft 8 to 35 ft 5 to 8 ft 1 to 5 ft First Zone EW-l0 117 October 2000 12-mch35'/2,ft 4-inch I PVC 10 02-inch --- 8 to 35 ft I 8 to 35%2 ft 5 to 8 ft I to 5 ft First Zone Notes ft feet below surface grade PVC polyvmylchlonde ` well construction reported to AGE by the San Joaquin County Public Health Services-Environmental Health Division Advanced GeoEnvironmental,Inc