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TABLE 1 Summary of Monitoring Well Details SIERRA LUMBER MANUFACTURERS (Case # 1 and #2) 375 West Hazelton Avenue, Stockton, California Well Installation Borehole Casing Casing Casing Screen Filterpack eentonde Grout Interval Total Depth Slot Sae Fleyatlon Interval Interval Interval I.D. Date Diameter Diameter 14aterlal Case#1 Wells .MW-1 10/19194 8-Inch 40 ft 2-inch PVC 0.02•inch 9.6 20 to 40 ft 19 to 40 0 17 to 19 ft 1 l0 17 ft *MW-2 10119/94 8•(nch 40 ft 2-inch PVC 0.02-loch 9.62 2010 40 ft 19 to 40 it 17 to 19 it 1 to 17 it •MW-3 10119194 8-inch 40 it 2-Inch PVC 0.02-inch 9.04 20 to 40 it 19 to 40 ft 1710 19 fl 1 to 17 ft MW-4A 07/29/98 10 Inch 60 ft 2-Inch PVC o,02-inch 9.3 8 to:5 ft 8lt 33 fl 3 to Eft 1 to a ft MW-4B 07/29198 10-Inch 60 f 2-inch PVC 0.02-Inch 9.13 45 to 50 ft 43 l0 50 fl 33 to 43 fl i to 3 ft MW-5 0730I98 8-loch 35 ft 2-Inch PVC 0.02-Inch 8.22 10 to 35 ft 8 to 3511 5 l0 8fl 1 l0 5 ft 1 MW-6 0730/98 8-inch 35 2-Inch PVC 0.02•(nch 9 10 to 35 ft 7 to 35 it 410 7 ft 1 to 4 ft MW-7 08120198 8-Inch 34It 2-Inch PVC 0.02-Inch 10.45 9l0 34 fl 710 35 ft 510 7 ft 1 o 5 ft MW8 05/11/99 8-Inch 35 - 2-Inch PVC 0.02-loch 8.33 15 to 35 it 13 to 35 ft 11 to 13 ft 1 it 11 t V W1 t f 124199 8-fnch 32 it 2-inch PVC 0.02-Inch 10 to 30 it 8 to 32 fl 6 to 8 fl 1 to 6 fl VW_1 11/24/09A1V 8•inch 30 ft 2-inch PVC 0.02-Inch - 10 to 30 it 8l0 30 ft 8l0 8 ft 1 l0 8 ft VW-3 02/26101 8•lnch 20 it 2-Inch PVC 0.02-inch - 10 to 20 ft 8 to 20 fl 5 to 8 ft i fo S ft V W-4 02128/01 8-inch 20 fl -inch PVC 0.02-Inch 10 to 20 0 B to 20 ft 5108 1 to 5 ft VW5 02I26/Ot 8•tnch 20 ft 2-Inch PVC 0.02-Inch 10 to 20 ft 8 to 20 it 5 to 8 ft 1 to 5 ft VW-6 05113104 8-Inch 25 ft 2-Inch PVC 0.02-fnch - 10 to 25 fl 9 to 25 it 8.5 to 9 ft 1.510 8.5 ft qW-1 02/28I01 8-Inch 30 ft 2-loch PVC 0.02-inch - 25 to 30 it 23 to 30 ft 20 to 23 ft 1 to 20111 AW-2 02/26I01 8•inch 30 ft 2-inch PVC 0.02-inch 25 to 30 it 23 to 30 0 20 to 23 it 1 to 20 0 AW-3 02I26I01 8-loch 30 ft 2-inch PVC 0.02-inch 25 to 30 fl 23 to 30 fl 20 to 23 fl 1 to 20 ft AW-4 02126/01 8-inch 30 ft 2-inch PVC 0.02-Inch 25 to 30 fl 23 to 30 ft 20 l0 23 ft 1 to 20 ft AW-5 05113/04 8-inch 1 35 It 12-Inch PVC 0.02-Inch - 30 to 35 fl 28 to 35 ft 25.5 to 35 ft 1.5 to 25.5 fl Case#2 Wells MW-9 032905 8-Inch 1 40 it 2-inch P WELL DESTROYED•DECEMBER 2006 20 to 40 it 18 to 40 ft 16 to 18 it %:l0 16 ft MW-10 03/29105 WELL DESTROYED:APR IL 2006 MW-11 03129l05 11 it MW-12 01/30/06 84 ch 39 ft 2-Inch PVC 0.02-Inch 13.31 1910 39 fl 13 to 39 ft 11 t0 13 fl %a to MW-13 01130106 Virch 65 fl 2-inch PVU 1 DESTROYED.•DECEMBER 2006 53 fo 85 ft 51 l0 53 fl 'A to 51 ft MW-14 01/31106 It MW-15 09/18106 8-Inch 40 ft 2-Inch PVC 0.01-Inch 13.72 20 to 40 fl 18 to 40 fl 16 to 18 ft '/a l0 16 MW-16 08/31/09 8-Inch 70 it 2-Inch PVC 0.01-inch 13.12 65 to 70 63 to 70 1 60 to 63 1 l0 60 MW-17 09/01/09 8-inch too ft 2-Inch PVC 0.01-Inch 13.04 90 to 100 87 to 100 84 to 87 1 to 84 MW-18 09102/09 8-inch 70 ft 2-Inch PVC 0.01-Inch 12.92 6510 70 8310 70 61 to 83 1 l0 61 MW-19 09I03109 8•tnch 70 ft 2-Inch PVC 0.01-Inch 13.75 6510 70 83 to 70 5810 83 110 58 MW-20 09/04/09 8.no fun I 2-I11ch PVC 0.01-Inch 13.25 8510 70 83 to 70 61 to 63 1 to 61 MW-21 OS123111 8-Inch 130 ft 2-Inch PVC 0.01-inch NM 120 to 130 118 to 130 11310118 1 to 113 DPE-1 111-w1u 12-inch 1 40 ft I 4-Inch I PVC 0.02-inch NM 10 to 40 1 010 40 6 to 8 1 to 6 DPE-2 11123/10 12-Inch 40 ft 4-inch PVC 0.02-inch NM 10 to 40 8 to 40 6 to 8 1 l0 6 DPE-3 02/04/12 10•fnch 40 fl 4-inch PVC 0.02-inch NM 20 to 40 18 to 40 15 N 18 1 la 15 DSV 14 08/07118 10 4-inch 8 ft 0 25-nch run. O.ON IAnch NM 57510 6 to 40 1510 68 to 0 14 5 58 A l0 4 5 Notes: submitted John P.Cummgs d Assodales welloonsbudion details obtained hom Repdon Environmental Invesllgalon report,dated 10 November 1994, M Well casing elevations from MW.9.MW-12.MW-13 and MW.15 through MW20 surveyed on 16 September 2009 by Morrow Surveying Land Surveyors n: feet below surface grade PVC: poi ay1chloride NM:not measured