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• Dedicated Monitoring Wells Up-Gradient <br />Wells established to monitor up-gradient conditions are: <br />wells nc, fifer <br />IR{-1 Peered <br />90-2 DssaluUan surface <br />90-3 B-Grove <br />90-0 <br />The up~radient wells were completed with water quality samplers in July 1990 and may <br />show residual effects of prior completion problems from 1980-1990. Water quality results <br />indicate Dissolution Surface (90-2) and B-Groove (90-3) data similar to historical data for <br />WRN. Well 90-2 indicates an upward trend for conductivity and alkalinity (see Figure 6-8). <br />The WQ for the A-Groove (90~) well reflects a mixture of water from deeper aquifers. The <br />• initial WQ of the Perched well IRI-1 was effected by completion activity but has trended <br />toward concentrations similar to the down-dip well 89-3 (see Figure 6-9). Tables 6-6, 6-7, <br />6-8, and 6-9 present historical summary of water quality data through the 2000 water year. <br />No significant water quality changes were noted during 2000 to indicate mining effects, <br />however the upward trend of alkalinity, conductivity, and bicarb for 90-2 should be noted <br />and may be a result of mining. <br />Pressure transducers were installed in November 1990 with the data acquisition unit on line <br />in February 1991 for WL monitoring. An obstruction in IRI-1 limited water level data until <br />50 <br />• <br />