Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />. <br /> <br />.-, (" ,- ('I <br />..h) i ~I <br /> <br />South Platte River and the records of diversions from the river made <br />Wlder d~rect flow and storage rights. Historic yater use analyses <br />yere also based on these diversion records. <br /> <br />In addition to the yield generated through regulation of <br />surplus floys, a second source of project yaters will be realized <br />from the use of direct flow rights yhich are noy utilized by lands <br />to be inundated by Narrows Reservoir. <br /> <br />For the purpose of this study, it yas assumed that historic <br />surface water floys \olould be representative of future conditions. <br />This analysis tends to give a conservative estimate of yater supply <br />since municipal importations into the South Platte Basin will tend <br />to increase rather than deplete basin surface water supplies. <br /> <br />Ground-Water Supplies <br /> <br />Ground yater provides a significant source of yater in the <br />South Platte River Basin. Total use in 1961 on all lands under <br />ditches in the Loyer South Platte Water Conservancy District \olas <br />107,000 acre-feet. Average pumping in this same area during the <br />1947-1961 study period yas over 103,000 acre-feet per year. The <br />historic ground water use yas estimated by analyzing records of <br />poyer consumption, yater table elevations, and pump efficiencies. <br />These data yere obtained from the U. S. Geological Survey, Colorado <br />State University, and Rural Electrification Associations. A field <br />survey yas taken to determine the number and location of yells under <br />each ditch in the c,)nservancy dlstrict. Through this analysis, total <br />groWld yater utilization under each ditch system \olas estimated for <br />each month of the study period. <br /> <br />Although there has been a large increase in ground yater use <br />since 1930, it Yas assumed that historic ground yater utilization is <br />representative of future use. Senate Bill 367 and House Bill 1066 <br />of Colorado's Forty-fifth General Assembly and other anticipated <br />legislation yill probably prevent significant increase in ground <br />yater development in all but the loyer part of the South Platte River <br />Basin. A potential for further ground water development does still <br />exist in Sedgwick COWlty, but no analysis of such a development has <br />been included in this feasibility report. Such a development yould <br />not have a significant effect on the feasibility of this plan. <br /> <br />3 <br />