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<br />EXHIBIT G -_W~R INFORMATION <br />Surface runoff in the affected area occurs primarily as overland flow. A large amount of <br />precipitation received at ground surface infiltrates into the surrounding Pikes Peak granite and <br />resurfaces via toeslope springs. A tributary of the West Fork of West Beaver Creek occurs as <br />' a perennial stream that drains a wetland area formed by seepage at toeslopes located near the <br />center of the project site. A diverted intermittent stream currently Flows through the northwest <br />section of the parcel (Exhibit C). The stream was diverted from its original position due to <br />previous mining operations. <br />Because the project site is located near a valley bottom made up of gravelly glacial outwash <br />deposits (USGS, 1978)', groundwater tables are generally shallow. A groundwater well' <br />located in the SE'/, NW'/., Sec. 4, T.15S., R.69W reports a static water level of 5 feet and <br />water location of 10 feet. However, based on topographic information, the proposed gravel <br />mine is located 20-180 feet higher than this well site. Additionally, the proposed gravel mine <br />I site was covered with 10-15 feet of gravel during a 1965 Flood. <br />' Groundwater in the project area is supplied by two geologic units: Pike Peak Granite and <br />outwash gravel deposits. Precambrian crystalline rocks, such as the Pikes Peak Granite, will <br />contain significant amounts of water if fractured or weathered. If water occurs above 300 feet, <br />larger yields may be found deeper. However, if no water occurs above 300 feet, it is unlikely <br />water will be found at greater depth. Total dissolved-solid (T. D.S.) may range from 30 to <br />1,200 mg/I, where 500 mg/I is considered suitable for drinking water. Valley-bottom outwash <br />~. gravel deposits range between ]0 and 100 feet in thickness and from 245 to 1,600 mg/I T,D.S. <br />These deposits generally yield less than 20 gallons per minute.' <br />Mining operations will require water from the on-site stream for material sorting. Measures to <br />protect water quality are addressed in the Reclamation Plan (Exhibit E). <br />' 'U.S. Geological Survey. 1979: Geologic map of the Pueblo 1' X 2' Quadrangle, South- <br />Central Colorado. Map 1-1022. <br /> <br />'Colorado Department of Water Resources. Permit ~Y25196-F. <br />' 'Repplier, F.N., F.C. Heady, D.E. Collins, and P.A. Longmire. 1981. Atlas of Ground <br />Water Quality in Colorado. Colorado Geological Survey Map Series k16. <br /> illlcah.i,i <br />I ^ <br />~N' <br />17 <br /> _ <br />_ <br /> <br />