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Impacts to soils consists of a complete disruption of soil structure. Soils <br />will be stockpiled and will likely lose productivity as a result of residence <br />time in the stockpile. These impacts are not significant. <br />Vegetation <br />Vegetation in disturbed areas will be completely .disrupted during mining. <br />This will result in a loss in productivity until reclamation becomes <br />established. Topsoil stockpiles will be seeded with a temporary seed mix <br />which includes competitive species. State Stipulation 5 requires that <br />stockpiles that will not be redistributed for 5 or more years be seeded with <br />the permanent seed mix (excluding shrubs) rather than the temporary mix. This <br />should help to minimize the competition of the species in the temporary seed <br />mix with the permanent seed mix species. The impacts from vegetation <br />disturbance are not permanent and will be reduced as revegetated areas <br />mature. Temporary stabilization will reduce erosion. Therefore, no <br />significant impacts have been identified resulting from surface disturbance. <br />Wildlife <br />Minor impacts to wildlife will occur from the destruction of habitat during <br />surface disturbance. This habitat will remain disturbed until reclamation is <br />completed, thus increasing competition for existing habitat. WECC has <br />participated in stream stocking and habitat improvement programs on the North <br />Fork of the Gunnison River. In addition, WECC has contributed to the <br />endangered fishes fund to protect the Humpback Chub, and Colorado Squawfish. <br />Mining plan Special conditions 2, 3, and 4 have been retained in the mining <br />plan approval. The FWS identified important wildlife habitat that could be <br />affected should nay disturbance of these areas occur. No significant impacts <br />to wildlife have been identified. <br />Alluvial Valley Floors <br />Within the 5-year permit area, surface coal mining operations would not <br />interntpt discontinue, or preclude farming on an alluvial valley floor. The <br />quality and quantity of water supplying alluvial floors will not be materially <br />damaged. Water use by the applicant results in negligible losses to the <br />hydrologic system. No alluvial floors in the 5-year permit area will be <br />underrined, and no major aquifers have been identified in the coal seam or the <br />overburden. Springs are associated with lenticular sands, local faulting and <br />fracturing, and landslide deposits. Subsidence could cause some of these <br />springs to dry up. These springs supply less than 50 percent of the ephemeral <br />flow of Sylvester Gulch. <br />In the life-of-mine area, potential impacts were identified in the Minnesota <br />Creek basin. Mining plans and subsidence protection plan for the Minnesota <br />Creek basin have been developed. An augmentation plan is proposed to protect <br />downstream water users. The water earmarked for the augmentation plan will <br />not result in significant impacts to AVF's. In addition State stipulation 1 <br />requires an adjudicated augmentation plan to be in place prior to permitting <br />any mining activity in the Minnesota Creek Sasin. The revised mining plan for <br />:mining in the Minnesota Creek drainage basin, the augmentation plan, and <br />subsidence protection plan must insure that AVF's within and downstream from <br />the mine will not be significantly impacted. <br />-6- <br />