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• <br />Rule 6.4.6 EXHIBIT G -Water Information <br />The location of all tributary drainages, wells, springs, stockwater ponds, reservoirs and ditches on <br />the affected site and within two hundred feet of the site aze shown on Map 2, Camilletti Milner Pit <br /># 2 -Existing Conditions Map. Exploration activities on the proposed mine azea have documented <br />that ground water was encountered in all of the 17 exploration holes drilled as well as in all of the <br />four test pits dug on this site. The depth of groundwater averages approximately 5 feet deep. This <br />groundwater discharges into the Yampa River to the west of this site, since there aze no spring or <br />seep aeeas located in the immediate azea of the proposed mine pit azea. <br />Since this will be a wet pit, a dewatering trench will be constructed as shown on Map 3, Camilletti <br />Milner Pit # 2 Gravel Pit -Mine Plan A1ap. This trench will be excavated along the external mine <br />pit boundaries of the property to intercept groundwater which is flowing down dip towards the center <br />of the Yampa Valley. The neighbors to the southeast have a well located next to their house, but <br />since pump testing of this well indicates that this well intercepts a confined aquifer below the shale <br />layer corresponding to the pit floor of this operation and the water supply elevation of this well is <br />lower than the proposed limit ofdewatering activities it is impossible for this action to intercept their <br />water supply. Waters collected in the dewatering ditch and from runoff off the mine disturbance <br />areas will be directed through a series of proposed sediment ponds before it is discharged into the <br />receiving drainage. As shown on Map 3, Camilletti Milner Pit # 2 -Mine Plan Map, all of the <br />drainage flowing off the proposed mine access road will be directed into a sediment pond located <br />near the base of the slope and treated before it is discharged into the drainage. Mine Block I which <br />is located to the south of the YVEA electric transmission line, will have all runoff waters treated in <br />a sediment pond which is proposed to be constructed at the lowest elevation point of this property <br />in an area in the southwestern portion of the proposed mine area. <br />Mine Block II Area, located to the north of an including the YVEA electric transmission line, will <br />have runoff waters treated in the same sediment pond described above. As depicted on Map 3, <br />Camilletti Milner Pit # 2 -Mine Plan Map, a diversion ditch will be constructed along the east, north <br />and western portions of this mine block to intercept all surface runoff leaving the mine area. <br />The peak operational demands for water to be used for dust suppression is estimated at <br />approximately 50,000 gallons per day during the summer. This water will be obtained from the water <br />collected in the dewatering trench and the sediment pond. <br />The Applicant has applied for a National Pollutant Dischazge Elimination System (NPDES) permit <br />with the Colorado Department of Health, Water Quality Control Division and it is expected that <br />approval of this permit will be forthcoming in the near future. <br />Copies of two hydrologic reports documenting the proposed hydrological impacts of this operation <br />on the groundwater table in this area as wel I as the proposed drawdown potential on Trout Creek and <br />the Yampa River prepazed by Mr. Paul Currier, P.E. of Water Resources Consultants LLC are <br />enclosed along with an evaluation of the proposed adverse impacts on the adjacent Narrowleaf <br />17 <br />