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<br />and with appropriate State officials in such determinations and <br />correlations of streamflow and related data. Under the By,laws <br />of the Administration, these cooperative studies and activities <br />are assigned to the Engineering Committee of the Adminis- <br />tration. <br /> <br />(b) During the ycar covered by this report the Administration <br />has rccl'ivcd excellent cooperation from all agencies referred <br />to in the foregoing provisions of the Compact. The United <br />States Geological Survcy has continued the operation of the <br />compact gaging stations and the analyses and compilation of the <br />hydrologic d,lt:l presented in this report and used in the ad- <br />mini~tration of the Compact. The Corps of Engineers continued <br />to operate thc conservation pool of John Martin Reservoir in <br />accordance with the terms of the compact ;md the orders of the <br />Administratiun. However, on the grounds that the risks were <br />too great, the Chid of Engineers was unwilling to comply with <br />the Administrdtion's request that releases from the flood control <br />pool be tcrmin;ltecl durin.g the months of j,lnU;lry :me! Fenru:lry. <br /> <br />7. Water Supply. Reservoir Operation and Hydrologic Data <br /> <br />At the beginnmg of the Compact Year, there were 375,433 acre- <br />feet of water in stor;lge in John Martin Reservoir. This was tho: greatest <br />carryover of water in storage since the reservoir has been in operation. <br />Inflow to the rescrv'oir during the 'winter storage period amounted to <br />74,080 acre-feet. Releases during the samc period werc 74,800 acre-feet <br />of which 9,520 acre-feet wcre ~cle;lsed during the periud -Novemher 1 <br />through Decemhcr 1 g on demand of Colorado for 100 c.f.s. of river <br />flow. The remainder of the winter. releases were from sror:lgc in the <br />flood pool of the reservoir. \Vater in the reservoir rem:lined above the <br />established conservation pool elevation throughout the winter and 'Oil <br />March 31, 196fi, there were 374-467 acre feet in storage. <br /> <br />The first rcle,l5e of stored wa ter for the irrigation season was made <br />beginning at 8 :00 a.m. on April 5. 1966, to meet the demand of Colo- <br />rado and was increased at 8 :30 a.m. on April 8, 1966, to meet the <br />initial demand by Kansas. Except for a brief period from 7 :30 a'.m. on <br />August 13 to 8:00 a.m. on August 14 varied releases were' continued <br />through the irrigation season. At the end of the year on OctClbcr 31, <br />1966, there remained lR6,lOO acre-feet of water in storage. <br /> <br />Inflow into John Martin Reservoir during the irrigation season <br />totaled 110,440 acre-feet which i... 67 per eent of the scvcnteen~year <br />;t verage. <br /> <br />Total diversions downstream (rom John Martin Reservoir during <br />tbe period April 1 through October J 1 by the ditches in Colorado <br />Water District No. 67 were 186,735 acre-feet. Ditch diversions in <br />Kansas for the same period Rmounte:d to 160.0'22 acre-feet or 90. per <br />cent of the 5tOltclinc flows during th;lt tim€". The ~um of the irri.l?il.tion <br /> <br />9 <br />