Laserfiche WebLink
• Ru(e l ~ Permits <br />in the channels below the sediment control measures as the water reaches an equilibrium with natural <br />sediment loading. Salinity will increase due to exposure to the disturbed surfaces and newly weathered <br />materials, particulazly shales, and due to evaporation from the ponds. Elevated salinity levels will be seen <br />in runofftraversing anydisturbed azea, i.e., facilities areas orthe surface mine, and in spring dischazges <br />below the surface mine. It is not possible to predict the salinity levels exactly, but the geochemistry of the <br />overburden and the water quality ofthe coal wells can suggest a range of salinity levels which might be <br />expected from the discharge. The maximum conductivity was 2690 umhos, and it averaged 994 umhos. <br />Total dissolved solids values were only available from the waterquality samples, and the maximum value <br />was 747 mg/1 from four coal wells, and averaged 709 mg/l. <br />• <br />• <br />~~ ~~ <br />2.05-101 (revised 07/25/01) <br />