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• Sites 24 and 76 (See Tables 14, 14A, 14B, IS , 15A, and TSB) discharged primarily in response to <br />spring rwioET during the 1998 Water Year. Discharges occurred in coiil'ormance with the established <br />NPDES effluent limitations. Figures 26 and 27 provide graphical representations of the field <br />conductivity values measured for these sites during the 1998 Water Year, Anew maximwn value for <br />TSS was recorded for site 76 in March, all other 1998 values were within the expected range of <br />readings previously experienced. <br />No significant hydrology impacts attributable to activities or developments at Mine No. 3 are observed <br />to have occurred during the 1998 Water Year. Spoil spring discharges remained negligible and, <br />Therefore, did not constitute a significant portion of discharge from the Mine No. 3 area with any <br />potential to impact aft=site areas. The previously discussed trends of elevating field conductivity <br />measurements and TDS concentrations in the surface water sites and closely associated alluvial wells <br />are likely attributable to activities occurring upstream from Mine No. 3. These vends appear to be <br />leveling ofi in a narrowing range of values. No degradation of water quality or diminution of water <br />quantity is evident in comparing surface water sites above and below Mine No. 3. Discharges from <br />ponds M3N and M3S occurred in coidonnance with applicable NPDES permit limitations and thcrefore <br />did not constitute significant impacts to Middle Creek during the 1998 Water Year. Water levels and <br />chemical equilibrium in the spoil and overburden wells are not indicative of problematic impacts and <br />continue, with few insignificant exceptions, to vary within established nornial ranges. <br />• <br /> <br />6 <br />