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EXHIBIT G -Water Information <br /> 1. Test pitting performed at the Koskie site shows that groundwater is deeper than 15 feet;therefore, it is <br /> anticipated that no groundwater will be encountered at the site. In order to avoid exposing groundwater <br /> and to facilitate surface water drainage out of the pit,the pit excavation will not be deeper than <br /> approximately 15 feet which will be slightly higher than the bench terrace located directly east of and <br /> adjacent to the Koskie site. Weld County will stay approximately 2 feet above the groundwater elevation <br /> in order to prevent the exposure of groundwater. According to information obtained from the State <br /> Engineer's Office,the Koskie site is not located within a designated groundwater basin.The site <br /> historically drains to the east.Grading will be completed to allow the site to continue to drain in the historic <br /> direction towards Lone Creek.Any stormwater that falls on the site will be directed east along its historical <br /> flow path. A CDPHE Stormwater Construction permit will be obtained for this site and best management <br /> practices will prevent the migration of sediment or other pollutants off-site. The mining operation is not <br /> expected to impound stormwater. There will be a berm around the mining area to divert stormwater around <br /> the permit area and prevent any stormwater from running into the pit. Any stormwater falling directly into <br /> the pit will be diverted and released back to the stream within 72 hours in order to comply with State of <br /> Colorado water law.There are no irrigation structures,existing impoundments or planned impoundments at <br /> the site.There is one well, Well Permit No.293366,which is located on the property but outside of the <br /> mine permit area. According to the well permit,the well is used for livestock watering and has a pumping <br /> rate of 2 gallons per minute(gpm). The well is pumped via a solar powered pump and the water is stored <br /> in a water tank. Mining is not expected to impact the well or the water supply because groundwater will <br /> not be intercepted. Furthermore,the well is currently covered under a structures agreement and is included <br /> in the proposed updated structures agreement. <br /> 2. The operation is not expected to directly affect surface or groundwater systems. <br /> 3. Water needs for gravel mining and processing operations are expected to minimal;water for dust control <br /> can be obtained and hauled from County-owned wells which have been permitted for such purposes. It is <br /> anticipated that less than 4,000 gallons of water per year will be necessary for dust control purposes. No <br /> water is anticipated to be used during the reclamation phase. <br /> 4. Please see Number 3,above. <br /> 5. This site does not require a National Pollutant Discharge Elimination System (NPDES)Permit. <br /> C:\Users\hbalzano\Desktop\Koskie\Koskie Amendment Application Exhibits 04-29-20.doc <br /> 4/29/2020 <br />