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. . CJJJ.tHA.-h~ ."'~_-,.c,w,,,_,~ } ,'{if i 1.. {~ __,-_.-~ ", ---- '<,.-.;,-- . 0- ) N (lO f..n ~ EXHIBIT A Report of Engineering Committee Arkansas River Compact Administration March 27, 1962 Pursuant to the assignment made to the Engineering Committee by the Administration at their meeting on July 25, 1961, a study has been made of the 1961 irrigation season operations. T.he results of this study are tabulated in the accompanying computation. During the 1961 irrigation season, there were thr.ee per.iods in which stored water was released from John Martin Reservoir. The first period began at 9:00 a.m. on April 3, 1961, when Kansas made a request for delivery of 200 second-feet at tbe StateUne. This request was increased to 300 second-feet at 8:00 a.m. on April 12, 1961, and continued in effect until the reservoir was empti~d at 7:30 p.m. on April 28. 1961. Colorado first made a request for release of water. at 9:00 p.m. on April 11, 1961. The records show, however, that diversions ranging from 20 to 48 second-feet were being made in Colorado during the preceding 10 days. Subsequent requests for increased releases were made by Colorado on April 14, 17. 20 and 21 and remained effective until the reservoir was emptied on April 28, 1961. . In the 26-day period, April 3-28, Kansas requests for delivery of water at the StateUne were met on only 4 days. The first of these was not until the 12th day after the initial Kansas request on April 3. The other 3 days were on the 15th to 17th day, inclusive, after the Kansas request on April 12 for increased deliveries at the Stateline. Normally 3 days' time is allowed for water released from John Martin Reservoir to reach the StateUne. During the 18-day period, April 11-28, Colorado demands exceeded the requested releases on all but 6 days. These demands were greater by as much as 74 c.f.s. (20%) on April 15 and 182 c.f.s. (41%) on April 28. The second and third periods in June and August were much shorter than the one in April. In June releases began at 8:30 a.m. on the 19th at the request of Colorado. On June 22 Kansas requested delivery at the State- line. Both requests continued until the reservoir was emptied at 10:00 p.m. on June 27, 1961. During this period, Kansas requests were met on 4 days and Colorado demanda exceeded the requested releases on 2 days. The third period of releases began at 8:30 a.m. on Attgust 13 at the request of Colorado. At 8:30 a.m. on August 15, Kansas requested delivery of water at the Stateline. The reservoir was emptied at 1:00 a~m. on August 18,1961. During this period, Colorado demands exceeded requests on 3 days and Kansas requests were met on 2 days by Stateline flow. . ewes File Copy' ,!, j;;;; : .;~'" .-&,,< ~, j1 ii<' .