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TABLE 15-3 <br />Historical Information for Ground Water Wellg <br />Seneca II-W Mine <br />Well Number Year Year Water Levels Comments, Problems, Etc. <br />Completed Discontinued to 1989 <br />I <br />GW-S2W-1W 1979 1986 46 Completed in same bore hole. Seal failed in 1980. <br />GW-S2W-1 OV <br />GW-S2W-2WC <br />GW-S2W-2W 197 <br />GW-S2W-20V <br />GW-S2W-3EW <br />GW-S2W-3E1 1979 <br />GW-S2W- <br />3EWC <br />GW-S2W-3WC 1979 <br />GW-S2W-3W 1979 <br />GW-S2W-30V <br />GW-S2W-4W 1979 <br />GW-S2W-40V1 <br />GW-S2W-4WC 1979 <br />GW-S2W-40V2 <br />GW-S2W-5W <br />GW-S2W-50V <br />GW-S2W-6A1 <br />GW-S2W-6A2 <br />GW-S2W-6A3 <br />GW-S2W-6A4 <br />I GW-S2W-7A1 <br />1979 <br />1980 <br />1980 <br />1986 <br />1983 <br />1986 <br />1986 <br />1986 <br />Water quality samples are suspect (?). Sampling of <br />1 W ended 02!82. <br />Completed in same bore hole. Seals failed by 1985. <br />38 Some water quality samples are suspect (?). <br />Water level observation wells only completed in same <br />36 bore hole. Seal failed in 1983. <br />52 Single monitoring well. <br />58 from Completed in :;ame bore hole. <br />3W 30V is a dry well. 3W dry from 1980-83. <br />43 Completed in same bore hole. <br />40V1 is dry well some times. <br />4W produced water quality samples and level data. <br />69 Water level observation wells only completed in same <br />bore hole. Poor completion record and hydraulic link <br />with lower aqu(fers =suspect data. Completed in <br />same bore hole. Seal failed in 1980. <br />46 <br />45 Single wells along transect in alluvium. <br />65/49 Single wells along transect in alluvium <br />~~ <br />17 Revised 9/98 <br />