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TABLE 15-3 <br /> Historical In formation for Gro und Water Wells . <br /> Seneca II-W Mi ne <br />Well Number Year Year Water Levels Comments, Problems, Etc. <br /> Completed Discontinued to 1989 <br /> <br />GW-S2W-1 W 1979 1986 46 Completed in same bore hole. Seal failed in 1980. <br />GW-S2W-1OV Water quality samples are suspect (?l. Sampling of <br /> 1 W ended 02/82. <br />GW-S2W-2WC Completed in same bore hole. Seals failed by <br />GW-S2W-2W 1979 1986 38 1985. Some water quality samples are suspect <br />GW-S2W-20V 1?I~ <br />GW-S2W-3EW Water level observation wells only completed in <br />GW-S2W-3E1 1979 1983 36 same bore hole. Seal failed in 1983. <br />GW-S2W- <br />3EWC <br /> <br />GW-S2W-3WC 1979 - 52 Single monitoring well. <br />GW-S2W-3W 1979 - ~ 58 from Completed in same bore hole. <br />GW-S2W-30V 3W 30V is a dry well. 3W dry from 1980-83. <br />GW-S2W-4W 1979 1986 43 Completed in same bore hole. <br />GW-S2W- 40V7 is dry well some times. <br />40V1 4W produced water quality samples and level data. <br />GW-SZW-4WC 1979 1986 69 Water level observation wells only completed in <br />GW-S2W- same bore hole. Poor completion record and <br />40V2 hydraulic link with lower aquifers =suspect data. <br /> Completed in same bore hole. Seal failed in 1980. <br /> 1979 1986 46 <br />GW-S2W-5W ~ <br />GW-S2W-50V <br />6A1 <br />GW <br />S2W 1980 45 l <br />all <br />i <br />• <br />Si <br />ll <br />l <br />t <br />t i <br />- <br />- e we <br />ransec <br />uv <br />um. <br />ng <br />s a <br />ong <br />n <br />GW-S2W-6A2 <br /> 17 Revised 9/98 <br />