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Alluvium <br />Alluvial sediments are monitored in the Foidel Creek valley upstream and downstream of Mine <br />l and in the Fish Creek valley upstream and downstream of cline 2. Four wells completed in <br />the Foidel Creek alluvium are monitored. Three wells completed in the Fish Creek alluvium <br />are monitored. <br />Water Levels <br />The plots of the historic water levels in the four Foidel Creek alluvial wells are presented on <br />Figures 8 and 10. The plots of the historic water levels in the Fish Creek wells are presented <br />on Figures 11 through 13. The water levels in the adjacent streams show the typical seasonal <br />pattern of relatively rapid increase and decline due [o spring runoff. In addition they show the <br />general decline in water levels due to the relatively low runoff since 1987. <br />While the seasonal variation in water levels in the Foidel Creek alluvium is readily apparent, no <br />• impact from the mining is evident. The average water level in the 001-5-5, AV-1 and 008-AV-2 <br />well, adjusted for differences itt spring runoff, has not changed since monitoring began in 1979. <br />The alluvial well immediately downgradient from Pond A (Well 009-5-]0) shows a slight water <br />level decline compared ~vitlt previous years due to much lower discharge volumes. The water <br />level data for the Fish Creek alluvial wells do not show any impact from the reclaimed Mine 2 <br />Area. <br />Water Quality <br />The water quality data are summarized in Tables 12 through 17 for the Foidel Creek alluvial <br />wells and Tables ]8 tltrouglt 23 for the Fish Creek alluvial wells. The historic field <br />conductivities for the Foidel creek wells are plotted on Figure 14, and for the Fish Creek wells <br />on Figure I5. Seasonal variation in conductivity is apparent in the wells. This is probably due <br />to the flushing effect of relatively low dissolved solids surface water which recharges the alluvial <br />aquifers during spring runoff. <br />\J <br />4- <br />