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net annual evaporation was calculated as 2.93 ft, and thus, the resulting net annual <br />evaporative consumptive use during the mining operation is 3.4 ac-ft. <br />The maximum annual production from the Derr Pit site is estimated at 250,000 tons. <br />The moisture content of the material hauled off the site for Phases 2 - 7 was assumed <br />to be four percent by weight; this results in an annual amount of 7.4 ac-ft of water <br />retained in the product. Dust control is also required for internal haul roads and <br />stockpiles, however this was not accounted for as Broken Arrow Investments, LLC <br />intend to purchase water from the City of Greeley. The water will be taken from the fire <br />hydrant at Balsam Avenue and Hwy 263 to fill a water truck that will provide dust <br />control. The source of water will not cause a groundwater depletion and is not <br />accounted for in the table below. <br />The maximum total annual consumptive uses associated with Phases 2 - 7 of the <br />mining operation are estimated as follows: <br />Evaporation re-feet) 1 3.4 <br />Moisture Retained in Product acre-feet 7.4 <br />TOTAL acre-feet 10.8 <br />Between the second and third year of mining, a slurry wall liner will be constructed <br />around the pit. Following mining, a reservoir will be created at the mining site with a <br />surface area of approximately 30.38 acres. <br />Replacement Water <br />The replacement of consumptive uses will be accounted for in a Substitute Water <br />Supply Plan (SWSP) that is administered by the SEO. This plan will be in place prior <br />to mining in Phase 2. <br />Surroundinq Water Rights <br />The following index map and table shows the permitted wells within possible influence <br />of the mining and dewatering operations for this site. The well permit map itself was <br />obtained from the Colorado Division of Water Resources' (SEO's) latest online <br />Geographic Information System (GIS). Although there may be other wells in the area, <br />they are not registered and permitted with the SEO. <br />As required by the SEO, a gravel pit well permit will be obtained for the proposed uses <br />of groundwater at the site prior to mining commencing in Phase 2. If the proposed use <br />of groundwater at the Derr Pit site results in material injury to surrounding wells, Broken <br />Arrow Investments, LLC will ensure that all necessary actions or measures are taken to <br />address or remedy the injuries. <br />Derr Pit Project <br />J X Consulting, Inc. DMG 112 Permit <br />' 27