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RULE 2 - PERMITS <br />• Temporary changes in runoff and infiltration characteristics, including increased runoff, <br />from surface disturbance areas. <br />• Additional contributions of sediment from disturbed areas to surface runoff. <br />• Alteration of surface flow patterns due to operation of sedimentation strictures. <br />• Decreased surface water discharge and increased concentrations of chemical constituents <br />due to evaporation from impoundment surfaces and consumptive use by mine operations. <br />• Increased surface water discharge and changed water quality due to surface discharge of <br />mine water. <br />• Decreased surface water quality due to mine - affected groundwater discharge to alluvial <br />aquifers. <br />• Decreased surface water discharge and changed water quality due to elimination of existing <br />springs that would otherwise contribute to stream flow. <br />• Changes in water quality of runoff in contact with stockpile materials. <br />• Culvert installation and diversion of surface flows. <br />• Differential settlement and modification of infiltration and recharge characteristics in <br />subsidence areas. <br />PSCM Permit App. 2.05 -85 Revision 03/05/10 <br />