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TABLE 1 Summary of Monitoring Well Details SIERRA LUMBER- 375 West Hazelton Avenue, Stockton, California Well Installation Borehole Total Depth Casmg Casmg Slot Castng Screen 71�FiTlte�rpack Bentonite Grout I D Date Diameter Diameter Matenal Size Elevation Interval l Interval Interval MW-1' 10-19-94 8-mch 40 ft 2-mch PVC 0 02-inch 962 20 to 40 ft 19 to 40 ft 17 to 19 ft 1 to 17 ft MW-2' 10-19-94 8-mch 40 ft 2-mch PVC 0 02-inch 964 20 to 40 ft 19 to 40 ft 17 to 19 ft I to 17 ft MW-3' 10-19-94 8-mch 40 ft 2-mch PVC 0 02-mch 905 20 to 40 ft 19 to 40 ft 17 to 19 ft I to 17 ft MW-4A 07-29-98 10-inch 60 ft 2-mch PVC 0 02-inch 952 8 to 33 ft 6 to 33 ft 3 to 6 ft 1 to 3 ft MW4B 07-29-98 10-inch 60 ft 2-mch PVC 0 02-mch 941 45 to 50 ft 43 to 50 ft 33 to 43 ft 1 to 3 ft MW-5 07-30-98 8-mch 35 ft 2-inch PVC 0 02-mch 824 10 to 35 ft 8 to 35 ft 5 to 8 ft 1 to 5 ft MW-6 07-30-98 8-inch 35 ft 2-mch PVC 0 02-mch 9 18 10 to 35 ft 7 to 35 ft 4 to 7 ft I to 4 ft MW-7 08-20-98 8-mch 34 ft 2-mch PVC 0 02-mch 1045 9 to 34 ft 7 to 34 ft 5 to 7 ft 1 to 5 ft MW-8 06-11-99 8-mch 35 ft 2-mch PVC 0 02-inch 834 15 to 35 ft 13 to 35 ft 11 to 13 ft 1 to 11 ft VW-1 11-24-99 8-mch 32 ft 2-mch PVC 0 02-mch - 10 to 30 ft 8 to 32 ft 6 to 8 ft 1 to 6 ft VW-2 11-24-99 8-mch 30 ft 2-mch PVC 0 02-inch - 10 to 30 ft 8 to 30 ft 6 to 8 ft I to 6 ft VW-3 02-26-01 8-mch 20 ft 2-mch PVC 0 02-mch - 10 to 20 ft 8 to 20 ft 5 to 8 ft 1 to 5 ft VW-4 02-26-01 8-mch 20 ft 2-mch PVC 0 02-inch - 10 to 20 ft 8 to 20 ft 5 to 8 ft 1 to 5 ft VW-5 02-26-01 8-inch 20 ft 2-mch PVC 0 02-mch - 10 to 20 ft 8 to 20 ft 5 to 8 ft 1 to 5 ft AW-1 02-26-01 8-inch 30 ft 2-mch PVC 0 02-mch - 25 to 30 ft 23 to 30 ft 20 to 23 ft Ito 20 ft AW-2 02-26-01 8-mch 30 ft 2-mch PVC 0 02-mch - 25 to 30 ft 23 to 30 ft 20 to 23 ft 1 to 20 ft AW-3 02-26-01 8-inch 30 ft 2-mch PVC 0 02-mch - 25 to 30 ft 23 to 30 ft 20 to 23 ft 1 to 20 ft AW-4 02-26-01 8-inch 30 ft 2-mch PVC 0 02-inch I - 25 to 30 ft 23 to 30 ft 20 to 23 ft T 1 to 20 ft NOTES ft feet below surface grade PVC polyvinylchlonde Well casing elevations relative to City of Manteca Bench Mark Datum No 48 ' well construction details obtained from Report an Environmental Investigationreport,dated 10 November 1994,submitted by John P Cummings&Associates A"im=8 inironmenW,In&