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<br />' EXHILrIT G <br />' W ATE R I N F O R M A T I O N <br />Intrc,d~.ict ior~ <br />' The M & G Sand and Gravel Pit is located in Rdarns Cot~r~ty <br />along Old Brighton Road 1 mile south of Henderson, Colorado. <br />It is bounded on the west side by Brighton Road, or. the east <br />' and south sides by the Fulton Ditch and to the north by <br />farmlands. <br />' There are two concerns involving water issues for• this <br />pro,)ect. First the effects of rnining or. the groundwater <br />table ar~d second the effects of rnining on the Fulton Ditch. <br />' The proposed pit lies outside of the South Platte River• <br />floodplain lSee Figure 1), therefore, fl~~odplain issues are <br />of no concern. <br />' Groundwater <br />The Valley Fill Rcquifer runs along the South Platte River• <br />t ire this area. This is an all~.ivial acquifer that feeds the <br />river and is also the source of sand and gravel that is <br />being mimed. R resource study was perforrned by <br />CTL/Thompson, Inc. for this site. Twenty three test holes <br />' were bared and logged. lest results indicate that <br />groundwater is between 2 to 5 feet below the surface. <br />' The proposed rnining operation would use wet rnining <br />techniques. R drag line will remove the resource and expose <br />the groundwater table thus creating a lake. Part of the <br />lake will be filled in with waste sand and overburden from <br />the mining. Final reclamation will leave a body of water <br />58.7 acres in size. <br />The State Engineer Well Tabulation indicates there ar•e 26 <br />permitted wells within Section 3, R 67 W, T 2 S (See Table <br />G-1). R11 known wells mapped by the U. S. G. S. for• a 2 mile <br />' radius of the project are shown in Figure G-1. The State <br />Engineers list shows a total of 4'34 permitted wells ire this <br />area. However, these records do not indicate if all of <br />these wells were drilled. No wells were shown on the west <br />' side of the South Platte River. The river will act as a <br />hydrologic barrier and prevent any effects from the rnining <br />operation being felt on the west side. The wells located orr <br />' the east side should also expect to feel no irnpact. The wet <br />mining technique used will not draw the water table down. <br />Wells within 300 feet could expect to feel a maxirnum impact <br />' of 1 foot drop in the water table. This will not affect <br />their operation. <br />G-1 <br />1 <br />1 <br />