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oRz INCORPORATED <br /> ENVIRONN NTAL AND ENGINEERING SERVICES <br /> STRATEGICALLY POSITIONED-TECHNICALLY PREPARED <br /> { <br /> MAYDAY IDAHO MINI, COMPLEX <br /> WILDCAT MINING CORPORATION <br /> ORIGINAL 112(d)PERMIT <br /> EXHIBIT I <br /> Soils Information <br /> Rule 6.4.9 <br /> An evaluation of soil samples was undertaken within operational areas of the May Day-Idaho <br /> Mine Complex. This section reports the soil resources on the project site for determining the soil <br /> types and characteristics, and also the suitability and amounts for use as plant gro,,vth media <br /> ("topsoil") during reclamation. Based on previous studies and 2010 field work, a baseline map <br /> of the location of the soil types and an assessment of the physical and chemical characteristics <br /> for reclamation and revegetation are presented. <br /> 1.0 General Description of Soil Resources <br /> A Customs Soil Report was prepared for the general area using data available at the Natural <br /> Resources Conservation Service (NRCS) website (Attachment I-1). Two soil surveys are <br /> reported for the permit area: <br /> • Animas-Dolores Area, Colorado, parts of Archuleta, Dolores, Hinsdale, La Plata, <br /> Montezuma, San Juan and San Miguel Counties (C0672); <br /> • La Plata County Area, Colorado (C0669). <br /> A combined map of both surveys was prepared (Figure I-1). In both surveys, the dominant soil <br /> type was the Nordicol very stony sandy loam, 6 to 25 percent slopes with the following <br /> characteristics applicable to reclamation at the site: <br /> • Law1forni: Mountain slopes <br /> • Parent material: Slope alluvium and colluviums derived from sandstone <br /> • Drainage Class: Well drained <br /> • Available itvater capacity: Low <br /> • 11axinuun salinity: Nonsaline. <br /> The typical profile for this soil is: <br /> • 0-1": slightly decomposed plant material; <br /> • 1-7": Very stony sandy loam <br /> • 7-20": Very stony loam; <br /> • 20-28": Very stony sand), loam; <br /> • 28-52": Very stony sandy clay loam; <br /> • 52-61": Extremely stony sandy loam. <br /> Further descriptions of this and other soils in the permit area are presented in Attachment I-1. <br /> May Day Idaho Mine Complex 1 l2(d)Permit Amendment <br /> M-1981-185 AM-2 <br /> Revised April 10,2017 <br />