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731 <br />CJ <br />J <br /> <br />Pia e S-18 Summary February 2000 <br />Table S-1 <br />Summary o/Impacts by Alternative for Each Issue <br />Issue/Concern Alternative <br /> A B C D <br />SVeam Sedimentation None-no mining Low-Moderate Low-Moderate Low <br /> from lease traps <br /> or exploration <br />Water Quality Degradation None-no mining Low Low Low <br /> from lease tracts <br /> or exploration <br />Impacts to Threatened and None-no mining Negligible Negligible Negligible <br />Endangered Aquatic Species from lease tracts <br /> or exploration <br />CULTURAL RESOURCES <br />Impact to Cultural and Historic Sites None-no mining Law Low Low <br /> from lease tracts <br /> or exploration <br />GEOLOGY/SUBSIDENCE <br />Potential Effect to Curecanti-Rifle None-no mining None None None <br />230/345 kV Electric Transmission from lease tracts <br />Line or exploration <br />Potential Effect to Terror Creek None-no mining Low Low Low <br />Reservoir from lease tracts <br /> or exploration <br />Potential Effect to Terror Creek None-no mining Moderate Moderate Negligible <br /> from lease tracts <br /> or exploration <br />Potential EHed to Hubbard Creek None-no mining Moderate Moderate Negligible <br /> from lease tracts <br /> orexplora6on <br />Potential to Aggravate Landslides None-no mining Law Low Low <br /> from lease fracLs <br /> or exploration <br />Land Use <br />Acres Disturbed (total) Not Applicable to 33.5 33.5 33.5 <br /> lease tracts or <br /> exploration <br />Land Disturbed by Ownership (%) Not Applicable to <br />BLM lease tracts 26 27 27 <br />Forest Service 59 62 62 <br />Private 15 11 11 <br />Noise' <br />Noise Effects From Surface Low -Moderate Low -Moderate Low -Moderate Low -Moderate <br />Facilities <br />Noise Effects From Coal Trucks Low -High Low -High Low -High Low -High <br />Noise Effects From Coal Trains Moderate -High Moderate -High Moderate -High Moderate -Nigh <br />' Noise effects very based on distance from the noise source. <br /> <br />