Laserfiche WebLink
May Day Idaho Mine Complex 112 (d) Permit Application <br />A site specific soils investigation is presented in Section I - Soils Information. In <br />summary: <br />• the affected lands are located predominately on a single mapped unit - the <br />Nordicol stony loam; <br />• the unit is formed on Jurassic sedimentary rock as described in Section 6.4.20(8) <br />with slopes approximately 30-35°; <br />• weathered sandstone is predominate throughout the profile; <br />• topsoil is generally less than 6" and is mixed with weathered sandstone gravels <br />and cobbles; and <br />• areas that have been historically cleared (roads, benches) show very good re- <br />growth without any fertilizer or amendment. <br />• Soil salvaging and stockpiling will not be undertaken for the following reasons: <br />• the collection of topsoil on the steep slopes will be difficult; <br />• the separation of topsoil from the weathered bedrock would greatly reduce the <br />volume of topsoil to be salvaged; <br />• the limited area to store stockpiled topsoil; and <br />• the fact that natural regeneration on disturbed areas indicates that topsoil is not <br />required for reclamation. <br />(c) Analysis <br />Analytical data is presented in Section I - Soils Information. <br />(i) In summary, the <2mm fraction is a loamy texture, with pH approximately 7.5- <br />8.5. Organic matter concentrations ranged from approximately 3-8% at the surface to <br /><2% in the subsurface. Exchangeable cations are dominated by calcium with <br />negligible sodium. <br />(ii) Based on field observations and analytical results, there are no problematic soils <br />at the site and the regeneration of native vegetation on historically disturbed land is <br />extensive. <br />(iii) Nitrogen concentrations are just below an acceptable level of 0.07% (700ppm) <br />and phosphorus concentrations are very low. NRCS recommends the use of nitrogen <br />as a fertilizer as described in Exhibit H - Reclamation Plan. <br />(iv) No experiments will be undertaken to determine soil amendment requirements. <br />6.4.20(18) Wildlife Protection <br />(a) Mitigation Measures <br />Wildcat Mining Corporation will adhere to all measures recommended by CDOW <br />outlined in Exhibit H Attachment H-2 <br />REVISED June 5, 2011 <br />May Day Idaho Mine Complex 112(d) Permit Application <br />September 21, 2010 <br />18