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RULE 4 P ERFORMANCE STANDARDS <br />A number of light use roads (See Maps 21 and 22) consist of pre- existing ranch roads which existed prior <br />to mining activities and will be left in place after mining activities have ceased and, as such, they will not <br />be reclaimed. Colowyo intends to infrequently travel or use such roads, with the main usage being pond <br />monitoring and maintenance, sediment control ditch monitoring and maintenance, groundwater monitor <br />well access, meteorological /air monitoring station access, etc. Examples of such light use roads include, <br />but are not limited to, roads to the West Pit, East Taylor, Gulch A and Prospect Ponds, access to the south <br />collection ditch, etc. <br />During minor revision 80 a light -use road was permitted to facilitate shorter equipment movements to <br />additional areas of the northern end of the mine. This light -use road begins south of the fuel storage tanks <br />and continues in a northwest direction towards the main coal haulage road with an approximate width of <br />30 feet and a length of approximately 1200 feet. It enters the main coal haulage road just below the <br />traffic pattern crossover. Topsoil was stripped in accordance with Rule 4.06.2 and placed on topsoil pile <br />15A directly to the west of the road. Maintenance will include maintaining natural drainage across the <br />roadway and maintenance of a swale on the northern portion of the road which will transfer runoff to the <br />existing ditch. Reclamation of this light -use road will be completed immediately after the road is no <br />longer needed for operations and will be reclaimed in accordance with Rule 4.03.3(7). The road was <br />field designed in accordance with Rule 4.03.3. <br />Rule 4 Performance Standards 4.03 -3 Revision Date: 7/27/09 <br />Revision No.: TR -76 <br />