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TABLE 4 <br /> WELL CONSTRUCTION DETAILS <br /> Stockton, Califronia <br /> ' Unocal Wells <br /> ' GROUND WATER MONITORING WELLS Paae 2 of 2 <br /> Well Depth to Blank Screened Sand Bentonite Cement/ <br /> Number Bottom Casing Interval Pack Seal Grout <br /> (in feet bgs*) (in feet bgs) (in feet bgs) (in feet bgs) (in feet bgs) (in feet bgs) <br /> ' MW-10 70 0 to 50 50 to 70 48 to 70 48 to 50 0 to 48 <br /> MW-10A 51 5 0 to 30 30 to 50 28 to 50 26 to 28 0 to 26 <br /> MW-11 725 0to525 525 to 725 505to725 46 to 489 0to46 <br /> ' MW-12 71 0 to 51 51 to 71 49 to 71 47 to 49 0 to 47 <br /> MW-13 68 0 to 48 48 to 68 46 to 68 44 to 46 0 to 44 <br /> MW-14 69 0 to 49 49 to 69 47 to 69 45 to 69 0 to 45 <br /> ' MW-14A 50 0 to 30 30 to 50 28 to 50 26 to 28 0 to 26 <br /> MW-15 69 0 to 49 49 to 69 47 to 69 45 to 69 0 to 45 <br /> MW-16 64 0 to 44 44 to 64 42 to 64 40 to 42 0 to 40 <br /> ' MW-17 65 0 to 45 45 to 65 43 to 65 41 to 43 0 to 41 <br /> MW-18 50 0 to 30 i 30 to 50 28 to 50 26 to 28 0 to 26 <br /> MW-19S 50 0 to 30 30 to 50 28 to 50 26 to 28 0 to 26 <br /> ' MW-19D 66 0 to 61 61 to 66 60 to 66 58 to 66 0 to 58 <br /> MW-21 S 49 0 to 29 29 to 49 27 to 49 25 to 27 0 to 25 <br /> MW-21 D 66 0 to 61 61 to 66 60 to 66 58 to 66 0 to 58 <br /> MW-22S 50 0 to 30 30 to 50 28 to 50 26 to 28 0 to 26 <br /> MW-22D 66 0 to 61 61 to 66 59 to 66 56 to 59 0 to 56 <br />' NOTES <br /> *bgs- below ground surface <br /> #-backfilled with bentonte chips from 35 feet to bottom before setting the screened interval <br /> K 1232 WELLDETAIL XLS <br />' 1232 WallDetail ENVIRONMENTAL AUDIT,INC <br />