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evaporative losses of groundwater, of which will require appropriate permits. The Gunnison <br /> River in this location is currently over-appropriated, thus requiring and augmentation plan for <br /> water usage at the site. Elam Construction will obtain the required augmentation plan and <br /> additional gravel well permits prior to the exposure of any groundwater at the site. A copy of <br /> these plans will be provided to the Division through a Technical Revision. <br /> 8. Water Related Permits <br /> Elam Construction is applying for all necessary permits that have not already been acquired for <br /> water handling at the Delta Paving Gravel Pit. This includes their current discharge permit with <br /> the Colorado Department of Public Health and Environment and their gravel well permit for their <br /> existing groundwater exposure with the Colorado Division of Water Resources. The same <br /> discharge permit will be used for removing water from the site in the future. A new gravel well <br /> permit will need to be obtained for the new groundwater exposure associated with the additional <br /> mining areas. <br /> 9. Water Consumption and Source <br /> Water for dust control will be the primary consumptive use at the Delta Paving site. Water will <br /> also be used for aggregate washing, evaporative losses, and concrete/asphalt production. This <br /> water will be sourced from the groundwater lakes associated with the gravel well permits. Table <br /> G-4 summarizes the estimated water consumption for the operation throughout the year. <br /> Table G-4 Water Consumption <br /> Aggregate Concrete/Asphalt Dust Evaporative Water Removed <br /> DepletionsMonth Washing Production(ac-ft) Control <br /> an 0 <br /> Feb 0.00 0.00 0.00 I 7.62 0.00 7.6 <br /> 0100 4.4 0 11.97 0.00 12.0 <br /> A r 0.41 0.43 0.55 19.60 0.23 21.0 <br /> 0.4 845''-':''%" 0.571 26.13 0.24 27.6 <br /> Jun 0.41 0.43 0.55 31.57 0.23 33.0 <br /> Jul, 0.43,- 0.45 32.66 0.24 34.1 <br /> Aug0.43 0.45 0.577 29.39 0.24 30.8 <br /> e 0.41 0.43 t" 5-: 21.77" 0.23 23.2 <br /> Oct 0.43 0.45 0.57 1 15.24 0.24 16.7 <br /> Nov 0,00 0.00 0.00 8,74-". 0.00 8.7 <br /> Dec 0.00 0.00 0.00 6.53 0.00 6.5 <br /> Total 2.95 3.07 3.96 217.72 1.65 227.7 <br /> Delta Paving Gravel Pit <br /> Apr112022 G-7 Lewicki&Associates <br />