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WHITE BANKS MINE EXHIBIT C Page 8 At such time as Avalanche Creek locates and permits a well in the main yazd area, such location, permitting, and use will be in full compliance with applicable Colorado water I'aw and such other rules and regulations as might apply. 6.3.3(1)(k) Handling and Disposal of Acid or Toxic Producing Materials During Mining ACMA's operations will be in 97+% alabaster (gypsum, calcium sulfate, CaSO4 2HZ0); quartzite (essentially pure quartz, silicon dioxide, SiOZ, with silicate impurities); dolomite (calcium magnesium carbonate, CaMg(CO,)Z) and marble (calcite, calcium carbonate, CaCO,), which are not acid or toxic producing. ACMA is unaware of any material in its proposed area of operation, underground or surface, that is acidic or toxic or has the potential under normal temperature and pressure conditions to produce acidic or toxic materials. 6.3.3(1)(1) Measures to be Taken to Minimize Disturbance to the Hydrologic Balance, Prevent Off Site Damage, and Provide for Stable Configuration There is no known groundwater in the materials to be mined. There are no surface water resources in the permit area. Water used underground for cutting will be settled and recirculated, so the only losses will be through evaporation, which will be minimal, and a very small amount that may remain with the product. If and when the bathhouse is completed as a bathing facility, an appropriate water disposal system designed and constructed in compliance all applicable rules and regulations will return water used to the alluvial groundwater system as it may exist, again with only very minor loss to evaporation. Reclamation will maintain the existing general drainage pattern. Therefore, no significant disturbance to the hydrologic balance will occur. Off-site damage will be minimized by preventing increased sediment load as discussed above; by minimizing improvements to the existing road; and dust control. Road improvements will be limited to surfacing as needed in cooperation with White River National Forest to maintain drainage and prevent fugitive dust. Maximum non-natural slopes in the mine area will be the mine portal cut ands the slope between the mine portal bench and the lower mine yard. Because of the competent nature of alabaster and the fact that the beds here dip steeply into the hillside, coupled with the rock wall to be built to protect the slope between the portal bench and the lower mine yazd, these slopes are expected to be quite stable for the time period they will be exposed. The final configuration of the north part of the permit area (north of FDR 310) will be a graded revegetated slope approximately equivalent to undisturbed slopes on either side below an irregular rock outcrop also equivalent to natural exposures. Natural slopes adjacent to the disturbed area vary from 3:1 to 1:1, with rock outcrops from less than l : l to vertical or overhanging. rs FLU~y ~. 19W (1:01P.M