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-35- <br /> tomr more accurately predict impacts on the stream in the future. Thickness of <br /> overburden is much less under Scullion Gulch than Red Wash. The Staley-Gordon <br /> mine, abandoned in 1970, has only 200 to 300 feet for overburden thickness, <br /> comparable to that under Scullion Gulch in the Deserado Kline. No surface <br /> expressions of subsidence have been noted over caved areas in the <br /> Staley-Gordon Mine. Examination by Western Fuels, Inc. showed that the one <br /> known roof fall in this mine caused a collapse that extended only 16 feet <br /> above the roof line where 'it was halted by a massive, competent sandstone. <br /> Tension cracks probably did occur above the Staley-Gordon mine, but have been <br /> healed by weathering. Similar tension cracks may cause several stock ponds in <br /> the Scullion Gulch basin (within Federal Coal Leases C-8424 and C-8425) to <br /> lose some impounded water. To prevent this loss, the permittee may modify <br /> mining procedures beneath 'the pond aras. If the mine plan is not modified, <br /> compensation for any water losses due to mining will be made. The ponds will <br /> be repaired or replaced and water hauled in until the recovery is complete. <br /> (Page II. C-106c of the permit application). <br /> See the Subsidence Section of this Findings Document for further details on <br /> impacts related to subsidence. <br /> In summary, the impact of mining on the ground water hydrologic system will be <br /> minimal , primarily because of the limited amount of ground water which is <br /> naturally found in the area. A slight improvement in the quality of water <br /> reaching the White River should result when water is brought to the surface <br /> and consumptively used or discharged. <br /> No significant cumulative hydrologic impacts are expected as a result of the <br /> mining activities at Deserado Mine. The Division finds, in accordance with <br /> CRS 34-33-114(2)(c) and Rule 2.07.6(2)(c), that the operation has been <br /> designed to prevent material damage outside the permit area. <br />