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2012-02-28_REVISION - M1980244 (104)
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2012-02-28_REVISION - M1980244 (104)
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Last modified
8/24/2016 4:49:09 PM
Creation date
3/9/2012 9:33:41 AM
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Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
REVISION
Doc Date
2/28/2012
Doc Name
VOL. 1, Exhibit U
From
CRIPPLE CREEK & VICTOR GOLD MINING COMPANY
To
DRMS
Type & Sequence
AM10
Email Name
TC1
Media Type
D
Archive
No
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A complete discussion of the evaluation of soil resources within the study area can be found in <br />Baseline Technical Report for Soils and Biological Resources, located in Appendix 3 of Volume <br />III of this document. The results are summarized below. <br />Early soil studies identified three different soil types (Grenadier - like - Unnamed very gravelly <br />loam complex, Quander - Varden complex, and Rogert very gravelly sandy loam). In addition to <br />the named soil groups, other soils or characteristic surface features were mapped in the area. <br />These include mined or disturbed areas, wetland soils, floodplain soils, eroded or flooded soils, <br />and rock outcrops. <br />Using the updated NRCS data, eight soil types were identified within the MLE2 study area: <br />Bushpark -Seitz association, Adderton -Rosane complex, Quander- Bushpark, Disturbed land, <br />Rogert type, Herbman, Ivywild- Catamount, and Seitz. The Rogert soil type was further divided <br />into three sub - units. <br />Soils in the area are generally characteristic of well drained mountain soil complexes found on <br />steep slopes and exhibiting moderate to low water capacity, medium to rapid surface water <br />runoff, and a susceptibility to water erosion. The soils are differentiated based on slope and <br />aspect and support different vegetation types. Each of these soils is described in detail, including <br />the thickness of the soil horizon for each type and the suitability of each type for use in <br />reclamation activities at the Cresson Project, in Appendix 3 in Volume III of this document. <br />Most of the soil groups presented above are suitable for use in reclamation activities at the <br />Cresson Project. As part of the ongoing development of the Cresson Project, CC &V salvages <br />soil that is suitable for assisting with revegetation in accordance with its reclamation objectives <br />of revegetation on suitable slopes (see Reclamation and Closure, Section 12.0 of this Project <br />Description). Note that the soil salvage depth information presented in Table 2 -3 of Appendix 3 <br />is not strictly indicative of soil depths that can be salvaged. The actual depths are functions of <br />slope, surface rock, aerial extent, vegetative cover, and historical mining Soil depths vary <br />greatly depending upon their location and position on the terrain, with the shallowest soil on the <br />upper slopes and deepest at the toe of the slope. The presence of rock outcrops in some areas <br />renders salvage operations impossible. By removing large roots, stumps, and pushing slash, <br />unavoidable mixing of the thin growth media with the rocky subsoils occurs, producing a <br />material potentially not well suited for salvage as soil. The depth that can be recovered also is a <br />function of the nature of the soil and weathered bedrock, and the capabilities of the dozers and <br />other mechanized salvage equipment. As discussed in Section 5.4.2 of this Project Description, <br />the procedure proposed for salvage of soil will attempt to salvage suitable soil when the <br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project Mine Life Extension 2 <br />4 -22 <br />
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