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The Division finds the support facilities in compliance with Rule 4.04. <br />Hydrologic Balance <br />A. Water Quality Standards and Effluent Limitations <br />l . The Division proposes to grant small area exemptions from use of sediment ponds due to <br />the limited size of the areas and due to the fact that ponds and treatment facilities are not <br />necessary for the drainage to meet the effluent limitations of Rule 4.05.2 and applicable <br />State and Federal water quality standards for receiving streams and also due to the fact that <br />no mixing of surface drainage with a discharge from underground workings will occur. The <br />small areas to be exempted are as follows: <br />AREA SIZE SEDIMENT CONTROL <br />Rock Dust 0.5 acre berm, rock filter, Swale <br />Fish Creek Borehole 0.5 acre berm, rock filter <br />Fish Creek Vent 0.6 acre rock filter, vegetation <br />Pond B 1.5 acres veg, berm, rock filter <br />Power subst. <I acre berm <br />Rait Spur 2.75 acres silt fence/established vegetation <br />Warehse/shop 5.88 acres rock filter/established vegetation <br />Warehse No. 2 I.5 acres veg., rock filter <br />Tipple No. 2 <1 acre rock filter/vegetation <br />Pond D east 0.7 acre veg/rock filter/sump <br />Pond D west 0.5 acre rock filter <br />Pond T pile 0.5 acre rock filter <br />Overland belt 0.5 acre rock filter <br />FC Tipple <5 acres sump, rock filter <br />Rockfall Trenches 7.93 acres mulchlrock check <br />North Escape Shaft 1.82 acres mulch/silt fence/rock check/bales/veg. <br />EMD Vent 2.66 acres upland diveNveg./gravel mulch <br />EMD Treat Ponds 4.4 acres mulch/veg. <br />SW Borehole 0.2 acres silt fence/rock filters <br />Grout Hole pad 2.5 acres sump, rock check dam <br />For additional specifics on the currently approved Small Area Exemptions see pages 2.05-79 to 2.05-82.1 <br />C: U H B\C82056\R N03\RN03 F I N D.doc <br />21 <br />