Laserfiche WebLink
COAL <br />8 COMPANY 40� <br />TY•pEOpLE • PRODUCTTO� •�� <br />Lower Good Springs Creek - LGSC (Down - Gradient): <br />Parameter <br />Mean <br />Std <br />dev <br />Range <br />Max. <br />Min. <br />Max at <br />Min at <br />Trend <br />Lab pH <br />8.13 <br />0.24 <br />2.5 <br />8.6 <br />6.1 <br />08119191 <br />05114191 <br />Increasing <br />Lab Cond. <br />1605.22 <br />309.98 <br />2659 <br />2820 <br />161 <br />01119193 <br />06123192 <br />Increasing <br />TDS <br />1336.68 <br />338.42 <br />3420 <br />4050 <br />630 <br />11108100 <br />05123195 <br />Increasing <br />Sulfate <br />643.77 <br />157.13 <br />710 <br />945 <br />235 <br />12104189 <br />05120197 <br />Decreasing <br />Calcium <br />140.17 <br />24.76 <br />198 <br />208 <br />10 <br />12128189 <br />3113184 <br />Level <br />Iron <br />0.65 <br />0.92 <br />8.81 <br />8.84 <br />0.03 <br />08113108 <br />02101188 <br />Increasing <br />Magnesium <br />144.27 <br />24.43 <br />225.3 <br />226 <br />0.7 <br />12104189 <br />05120197 <br />Level <br />Sodium <br />72.85 <br />25.04 <br />144.3 <br />164 <br />19.7 <br />10108198 <br />04117100 <br />Increasing <br />Flow rate <br />4.07 <br />5.22 <br />46.94 <br />47 <br />0.06 <br />04127198 <br />12106199 <br />Decreasing <br />Ground water monitoring data provided in the AHR also provides a glimpse of <br />conditions both up and down gradient of the Colowyo Mine in shallow <br />groundwater wells. Comparable to the surface water conditions presented <br />above, shallow groundwater up- gradient of the mine is trending upward in <br />TDS, conductivity, and sodium. Conversely, the down - gradient data is <br />indicating a slight increase in TDS while other parameters are decreasing. <br />A -6 Well (Up- Gradient): <br />Parameter <br />Mean <br />Std <br />dev <br />Range <br />Max. <br />Min. <br />Max at <br />Min at <br />Trend <br />Lab pH <br />7.64 <br />0.34 <br />1.9 <br />8.6 <br />6.7 <br />11130193 <br />11121102 <br />Increasing <br />Lab Cond. <br />1107.16 <br />81.06 <br />512 <br />1440 <br />928 <br />05101185 <br />04127198 <br />Increasing <br />TDS <br />695.51 <br />92.75 <br />750 <br />930 <br />180 <br />07117101 <br />03113193 <br />Increasing <br />Sulfate <br />142.46 <br />57.38 <br />334.2 <br />430 <br />95.8 <br />07117101 <br />05115100 <br />Decreasing <br />Calcium <br />64.00 <br />18.31 <br />121.1 <br />169 <br />47.9 <br />11118197 <br />11113100 <br />Decreasing <br />Iron <br />0.35 <br />0.44 <br />1.81 <br />1.82 <br />0.01 <br />09126198 <br />11118197 <br />Decreasing <br />Magnesium <br />54.87 <br />17.89 <br />128 <br />169 <br />41 <br />11118197 <br />03121111 <br />Decreasing <br />Sodium <br />121.00 <br />19.78 <br />124.1 <br />142 <br />17.9 <br />3111108 <br />04127198 <br />Increasing <br />Elevation <br />6897.80 <br />3.20 <br />14.53 <br />6902.53 <br />6888 <br />05101185 <br />07131100 <br />Increasing <br />A Western Fuels - Colorado, LLC mining property <br />