Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />. <br /> <br />rr2226 <br /> <br />Moore and Wood - 2 <br /> <br />Oral - GSA <br /> <br />ABSTRACT <br /> <br />The Arkansas River Valley, an intensively irrigated <br /> <br />area in Colorado, is underlain by a valley-fill aquifer <br /> <br />resting in a U-shaped trough cut in relatively impermeable <br /> <br />Cretaceous rocks. Ground water is pumped to supplement <br /> <br />surface water; in the last 10 years pumping has more than <br /> <br />doubled. Ground water is closely related to the Arkansas <br />-- -- <br /> <br />River; percolation from irrigation recharges the aquifer <br /> <br />which discharges into the river. Pumping has resulted in <br /> <br /> <br />a reduction in streamflow because it intercepts water <br /> <br />that ordinarily would have reached the river. The l,500 <br /> <br />irrigation-wells in the Arkansas Valley withdrew <br /> <br />230,000 acre-feet of water in 1964. <br /> <br />......--- - <br />~--~-----_.- <br />