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In addition, an estimated 1.93 acre-feet of water per year will be used for dust control based <br /> (approximately) on 3,500 gallons per day for 20 days per month for 9 months. <br /> Annually the total evaporative and operational losses from mining activities (open water <br /> surface evaporation, water retained in the aggregate product, dust suppression) totals 17.98 <br /> acre-feet of depletion which must be augmented. All depletions were lagged to the Saint <br /> Wain River using the lagging factors approved by the State Engineer pursuant to on-going <br /> Substitute Water Supply(SWSP) approvals. <br /> (e) Indicate the projected amounts of the water sources to supply project water <br /> requirements <br /> Replacement Water: The source of replacement water for depletions will be onsite native <br /> ditch water and an approved water storage Pond located on Cell E on the Shore Gravel Mine <br /> Site. The State Engineer must approve a SWSP every year. These approvals require that <br /> the applicant provide a detailed explanation of the mining operations, a quantification of all <br /> mining activities and subsequent depletions and all legally available replacement sources. <br /> (f) Affirmatively state that the Applicant has acquired or applied for a National Pollutant <br /> Discharge Elimination System permit from the Water Quality Control Division <br /> The Operator will apply for a National Pollutant Discharge Elimination System (NPDES) <br /> permit from the Water Quality Control Division of the Colorado Department of Public Health <br /> and Environment prior to discharging water from the site. <br /> Bestway Concrete&Aggregates—Vogl Amendment-Shores Mine—MLRB 112 Permit Application <br /> Exhibit G-2 <br />