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There are no fragile soils or lands prone to landslides on Federal lands that will be impacted by <br />this project. There are about 36 acres of saline soils (conductivity > 16 millimhos) within the <br />project boundary. Access roads outside the lease expansion area will use existing routes and will <br />not require additional disturbance. New road constiuction will occur to individual drilling sites <br />within the lease exploration area, but efforts will be made to use existing roads when possible. <br />Table 10. Soil Classifications within 98 feet (30 Meters) of the Surface Disturbance Proposed <br />and the Boundaiv of the Lease Area. <br />SOIL # <br />SOIL CLASSIFICATION <br />RANGE TYPE <br />SLOPE <br />TOTAL <br />ACRES <br />53 <br />Moyerson stony clay loam <br />Clayey Slopes <br />15-65% <br />1,313 <br />94 <br />Turley fine sandy loam <br />Alkaline Slopes <br />3-8% <br />747 <br />74 <br />Rentsac- Moyerson complex <br />PJ Woodlands /Clayey Slopes <br />15-65% <br />486 <br />7 <br />Avalon - Persayo moist - Degater complex <br />Semidesert Loam <br />3-30% <br />194 <br />90 <br />Torrifluvents <br />Gullied <br />none <br />161 <br />33 <br />Forelle loam <br />Rolling Loam <br />3-8% <br />79 <br />130 <br />Turley fine sandy loam <br />Alkaline Slopes <br />3-8% <br />71 <br />75 <br />Rentsac - Piceance complex <br />PJ Woodlands /Rolling Loam <br />2-30% <br />62 <br />104 <br />Yamac Loam <br />Rolling Loam <br />2-15% <br />55 <br />126 <br />Massadona - Youngston moist complex <br />Semidesert Clay Loam <br />1-8% <br />40 <br />203 <br />Turzo loam saline <br />Alkaline Slopes <br />1-8% <br />36 <br />32 <br />Chroder sandy loam <br />Loamy Cold Desert <br />3-12% <br />32 <br />78 <br />Rock Outcrop <br />None <br />none <br />30 <br />64 <br />Piceance fine sandy loam <br />Rolling Loam <br />5-15% <br />23 <br />48 <br />Kobar silty clay cloam <br />Rolling Loam <br />3-8% <br />20 <br />93 <br />Turley fine sandy loam <br />Alkaline Slopes <br />0-3% <br />18 <br />138 <br />Moyerson- Rentsac Complex <br />Clayey Slopes <br />15-45% <br />1 <br />The most common soil type is Moyerson stony clay loam which is shallow, well drained, and <br />occurs on ridges and side slopes of dissected plateaus formed from calcareous shale. Typically 5 <br />to 20 percent of these Moyerson soils are covered with stones, flagstones, and boulders. These <br />soils have rapid runoff, have a very high hazard for water erosion and a large range of slope <br />classes. Turley fine sandy loam soils are deep well drained soils that formed on alluvium valley <br />floors and are derived from calcareous shale mixed with eroded sandstones. Turley soils have <br />medium runoff characteristics and a moderate hazard for water erosion. The Renstac- Piceance <br />complex soils form on uplands, broad ridges, and foothills. Renstac - Piceance complex soils are <br />shallow and well drained; runoff in these soils is medium and the hazard for water erosion is <br />slight to moderate. <br />Environmental Consequences of the Proposed Action: <br />Direct and Indirect Effects: The Proposed Action is expected to result in 56 acres of <br />surface disturbance associated with drilling test and ventilation wells; since no specific sites were <br />selected these wells could be in any of the soils described above. No new mine facilities would <br />be constructed in addition to these wells since the conveyer, electric train, and buildings built for <br />DOI-BLM-CO-1 10-2012-0023-EA 36 <br />