2009-02-26_PERMIT FILE - M2009018 (8)

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Exhibit G - Water Information 6.4.7 EXHIBIT G - Water Information (1) If the operation is not expected to directly affect surface or groundwater systems, a statement of that expectation shall be submitted. (2) If the operation is expected to directly affect surface or groundwater systems, the Operator/Applicant shall: (a) Locate on the map (in Exhibit C) tributary water courses, wells, springs, stock water ponds, reservoirs, and ditches on the affected land and on adjacent lands where such structures may be affected by the proposed mining operations; (b) Identify all known aquifers; and (c) Submit a brief statement or plan showing how water from de-watering operations or from runoff from disturbed areas, piled material and operating surfaces will be managed to protect against pollution of either surface or groundwater (and, where applicable, control pollution in a manner that is consistent with water quality discharge permits), both during and after the operation. (3) The Operator/Applicant shall provide an estimate of the project water requirements including flow rates and annual volumes for the development, mining and reclamation phases of the project. (4) The Operator/Applicant shall indicate the projected amount from each of the sources of water to supply the project water requirements for the mining operation and reclamation. (5) The Operator/Applicant shall affirmatively state that the Operator/Applicant has acquired (or has applied for) a National Pollutant Discharge Elimination System (NPDES) permit from the Water Quality Control Division at the Colorado Department of Health, if necessary. (1) Operations will directly affect surface and groundwater systems, as detailed under Exhibit D - Extraction Plan, and below. (2) (a) Please refer to Exhibit C-1: Existing Conditions Map. (b) The known aquifers under the site are the stream alluvium and the Laramie Fox Hills aquifer. (c) Discharge water will be dissipated with hard surface riprap or established grassed waterways. Other waters are retained by internal pit drainage, directed by vegetated berms or established waterways or through the maintenance or establishment of a stabilizing cover of vegetation. (3) The three components of the project water requirements are water removed with the product, dust control, and evaporation from exposed ground water. Dust will be controlled using truck sprinklers, and the estimated frequency is one load per day. At 3,000 gallons of truck capacity, the annual demand is 3.36 acre-feet. After the water table is encountered, the water removed with the estimated 800,000 tons of product is 23.55 acre-feet per year. The estimated net evaporation is 2.74 feet per year. At the maximum Varra Companies, Inc. Heintzelman Project RMS 112 Permit Application 1 2 February 2009