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7.4 HYDRDLOGiC BALANCE (4.05) <br />• 7.4.1 Geilerdl TMrniirwmonts <br />The mining to be carried out at the Trinidad Basin has <br />been planned in such a manner as to minimize negative impacts on <br />the prevailing hydrologic balance. An important aspect in minimizing <br />impacts is that significant amounts of ground water will not be <br />intercepted during the course of mining. <br />The surface m;n;ng activities have been designed to minimize <br />impacts to the prevailing hydrologic balance by implementing the <br />following practices: limiting the extent of surface disturbance, <br />recla;m;nq disturbed areas in a contemporaneous fashion, diverting <br />runoff around disturbed areas, and returning the land to ADC. <br />Additionally, the use of a hydrrmulch should help to decrease the <br />• amount of runoff and erosion from the reclaimed surfaces. <br />7.4.2 Water Quality Standards and Effluent Limitations <br />All disturbed drainage will pass through a sediment pond <br />except for those small areas that will be serviced by erosion <br />netting (Geofab Silt Fencing). However, all discharges will be <br />done >n accordance with the NPDES Permit issued to TBM. All the <br />coi~onents of the ~ar7;,,,ant control system will be maintained by <br />TBM until bond is released for the area. <br />Any dischareJe will also meet the effluent limitations es- <br />tablished in Fdile 4.05(7). All discharges fmn sediment ponds will <br />be sampled for the parameters listed in this rule and the results <br />. forwarded to the Division. <br />VII-5 <br />