Laserfiche WebLink
RULE 4 PERFORMANCE STANDARDS <br />4.05.17 Post -mining and Rehabilitation of Sedimentation Ponds, Diversions, <br />Impoundments, and Treatment Facilities <br />No treatment facilities are planned. Approved permanent sedimentation ponds, stock ponds, and <br />permanent diversions will be left in place. These structures will be maintained in an appropriate <br />condition before the Permit area is abandoned by repairing any necessary portions, cleaning <br />sediment and debris out, establishing appropriate vegetation and providing soil stabilization. <br />4.05.18 Stream Buffer Zones <br />In accordance with Rule 4.05.18, no land within 100 feet, or greater if required by the Division, <br />of a perennial stream, an intermittent stream, or an ephemeral stream with a drainage area greater <br />than one square mile, shall be disturbed by surface and underground coal mining operations <br />unless the Division specifically authorizes surface or underground mining operations closer to, or <br />through such a stream. Additionally, the area not to be disturbed shall be designated a stream <br />buffer zone and marked as specified in Section 4.02.5. <br />The locations of the disturbances that have occurred within 100' of a stream buffer zone are <br />described below and are depicted on Map l OC. <br />Good Springs Creek <br />Two sediment ponds were constructed within 100 feet of Good Springs Creek. The sediment <br />ponds include Streeter Pond and Gulch A Pond. During construction (during the late 1970's and <br />early 1980's) and to date these ponds have not created any adverse impacts to Good Springs <br />Creek. These structures are not anticpated to have any long term impacts to Good Springs <br />Creek. <br />Other structures have been constructed or previously existed within 100 feet of Goodsprings <br />Creek and they include Colowyo's access road off of Highway 13 where it crossing Goodsprings <br />Creek and Colowyo's guard shack. Colowyo constructed the access road to the mine and the <br />guard shack at the beginning of the Colowyo Mine. To date the access road and guard shack <br />have not created any adverse impacts to Good Springs Creek, and these long term structures are <br />not anticpated to have any long term impacts to Good Springs Creek. <br />West Fork of Good Springs Creek <br />The access road to Secton 28 Pond off of Highway 13 was not a new disturbance when Colowyo <br />began using it to construct and access the Section 28 Pond. Rather it was premining, pre-existing <br />"ranch" road, that accessed an old ranch home and surrounding valley area. Colowyo made <br />minor upgrades to the road when the Sectoin 28 Pond was constructed. The majority of these <br />upgrades were to allow proper draining through swales across the road. To date the pre -mining <br />ranch road and upgrades have not created any adverse impacts to the West Fork of Good Springs <br />Creek, and it is not anticipated that this road will have any long term impacts either to the West <br />Fork of Good Springs Creek. <br />Colowyo also has two surface water monitoring and two groundwater monitoring structures <br />(flumes and wells) installed within the stream buffer zone to the West Fork of Goodsprings <br />Rule 4 Performance Standards 4-24 Revision Date: 4/2/18 <br />Revision No.: RN -07 <br />