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6.4.7 Exhibit G -Water Information <br />Groundwater <br />Groundwater occurs at an average depth of 10 ft below ground surface in the <br />local area. There are no alluvial water supply wells within 600 ft of the pit <br />excavation. <br />Mining of the proposed excavation area of the permit will be by the "dry-mining" <br />method. De-watering operations will begin prior to sand and gravel excavation. <br />The Applicant has obtained one share of water from the Last Chance Ditch <br />Company, which will provide 383 acre-feet of water for use in augmentation. <br />A groundwater modeling report has been provided in Addendum A for the <br />purpose of evaluating the effects of groundwater mounding due to the placement <br />of a low permeability clay liner in the aquifer as specified in the reclamation plan. <br />Surface Water <br />The nearest major watercourse is St. Vrain Creek, which flows within one-half <br />mile of the northwest corner of the property. Final discharge of excess water <br />recovered and clarified from de-watering of excavation areas on the permit site <br />may be made to the Nelson Pond immediately north of the permit area. Prior to <br />any discharge activity to the Nelson Pond, the operator will obtain a Colorado <br />Discharge Permit System (CPDS) Permit. <br />Nelson Mining Resource <br />Regular 112 Permit Application <br />