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Since the sand and gravel resource is located below the ground water elevation, pumping of the ground <br />water is necessary. Pumping will occur continually during resource e~draction efforts from the aquifer. It <br />is anticipated that the pumping rate will be in the range of B00 gallons per minute. Ground water will be <br />pumped to the existing drainage Swale and 24 inch culvert adjacent to interstate 70 and ultimately <br />discharged into the Colorado River. Discharge and Well Permits will be obtained from the State of <br />Colorado prior to exposing or pumping the ground water. Acceptance of the pumped discharges by the <br />Colorado Department of Highways will be required prior to the issuance of a Discharge Permit by the <br />Colorado Department of Public HeaRh and Environment. <br />~.: <br />gr <br />r 'a,y~~ <br />~ p 1~11ri ~'G1VY.~'y~ 1 <br />N V VDU ® V 2QD~ <br />~ar>d.function Fia'd Office <br />fJ'fvpfon of FA;rers & Geo-ogg <br />Rev. O&07/06 <br />