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25 fu 1 to_n Di tch .' The data used for this canal has largely been compiled from information from the Farm Water Utilization Study for the Narrows Project made by the Bureau of Reclamation. The study covered a 15-year period from 1947 to 1961, inclusive. Most of this information is in the form of estimates made within various guide 1 ines and cri teria for various influencing factors. For example, some of these critical estimates include irrigated acreage, canal losses, amount of groundwater pumped and irrigation water requirements. Extensive detailed studies would be required to establish more reliable or firm estimates. The Fulton Ditch irrigates an estimated 12,013 acres of land lying east of the South Platte River from a point about 6 miles upstream frorr, Henderson to about 3 miles southeast of Platteville. The water commissioner for Water District 2 reported 11,500 acres as irrigated durin~ 1961 and 1966. Part of the irrigated aroa is river bottom land and part is located on ter- race land. It is estimated that SO percent of the irrigated land is clay loam, 12 percent is fine sandy loam, 25 percent is sandy loam and 13 percent is loamy sand. The Ful ton Di tch holds direct-flow \Va ler rights as follows: .' Priorlli No. Date 8 May 1, 1865 43 July 8, 1876 51 Nov. 5, 1879 Total decreed flmount (cubi c - feet/second) 79.70 74.25 ....?i2.2] rights 20,' .18 H;storic~l river diversions During the IS-year period of 1947 to 1961, inclusive, the monthly and yearly diversion records show the following: Acre-feet Diverted Apr May Jun Jul Aug Sep Oct Yearl y MJximum 1,400 6,200 9,300 9,200 9,000 5,500 3,600 32,500 Minimum 0 500 3,000 2,300 2,500 200 0 18,300 Average 413 3,147 5,553 5,927 5,100 3,587 1,660 2,587 During g of the IS years (where the J lowest and 3 highest years were eliminated) between 23,300 and 29,100 acre-feet was diverted annually. Estimated canal losses and farm he~dqate delivery of water The following table shows the estimated average monthly and annual canal losses for the IS-year period.