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1 <br />t <br />' Bedrock <br />GROUND WATER MONITORING <br />' Four wells in the Wadge Overburden (which includes the Wadge Coal) are <br />monitored. Four are in the vicinity of Mines No. 1 and Eckman Park. <br />' Water Levels - Water levels in the four Mine No. 1 wells have been measured <br />since 1979 (Figures 4 through 6). The water levels drop when strip mining <br />occurs nearby, but recover when the area is backfilled. The data indicates <br />that the water levels in the Wadge overburden varies seasonally: the water <br />' levels in the summer are higher than in the winter. <br /> Water Quality - Tlie water quality data for the Mine No 1 Wadge Overburden <br />' wells is summarized on Tables 4 through 10. A plot of dissolved solids is <br /> presented on Figure 7. The baseline dissolved solids level appears to be <br />' approximately 550 mg/1. Elevated dissolved sol ids levels in wells 009-79-4 <br /> and 006-82-74C appears to indicate that it is effected by seepage from the <br /> spoils aquifer. Wher e the dissolved solids are elevated the sulphate, <br /> sodium and the SAR are elevated. The data does not indicate any significant <br />changes in tfre trace metals concentrations except for elevated iron in Well <br />009-79-4. <br />' Alluvium <br />' Sediments in the Foidel Creek up and downstream of Mine 1 are monitored and <br />sediments in the Fish Creek valley up and downstream of Mine 2 are monitored. <br />Water Levels - Tlie plots of the historic water levels in the four Foidel <br />' Creek alluvial wells are presented on Figures 8 and 10. The plots of the <br /> historic water level s in the Fish Creek wells are presented on Figures 11 <br />' through 13. The water levels in the adjacent streams show the typical <br />l <br />f <br />d d <br />d <br />tt <br />ti <br />id i <br />li <br />t <br />i <br />l <br />l <br /> seasona pa <br />ern o ncrease an <br />o spr <br />re <br />a <br />ve <br />y rap <br />ec <br />ne <br />ue <br />ng <br /> runoff. While the seasonal variation in water levels in the alluvial <br />' sediments is readily apparent, no impact from the mining is evident. <br />1 <br />' -3- <br />