Laserfiche WebLink
an elevation of approximately 17 feet (see area-capacity curve in Table 1). The New Ish Ditch <br />travels east and south of the reservoir and then easterly again to serve shareholders located along <br />various laterals toward Johnstown. Storage releases to the New Ish Ditch are measured in a 14- <br />foot Parshall flume below the outlet pipe. Historical records of releases from Ish Reservoir to <br />shareholders in the two ditch companies are not maintained. <br />WATER RIGHTS <br />The Boulder Larimer Ditch Company has ownership in direct flow rights, as summarized in <br />Table 2, and storage rights, as summarized in Table 3. <br />Direct Flow Rights <br />The Boulder Larimer Ditch has a totaled decreed flow rate of 66.72 cfs for irrigation uses and <br />655 cfs for storage in Ish Reservoir. <br />Table 2 <br />Direct Flow Rights -Boulder Larimer Ditch <br />Source Appropriation Adjudication Administration Decreed Use <br />Date Date No. Amount <br /> 6/30/1875 5/28/1883 9312.0 27.20 cfs Irrigation <br />Li <br />l 5/20/1877 5/28/1883 10002.0 39.52 cfs Irrigation <br />tt <br />e <br />Th 6/30/1875 6/29/1916 14691.09312 85 cfs Storage <br />ompson <br />Ri <br />er 5/20/1877 6/29/1916 14869.0 85 cfs Storage <br />v 9/16/1890 6/29/1916 15787.10002 85 cfs Storage <br /> 1/4/1904 6/29/1916 19726.0 400 cfs Storage <br />Source: Colorado Water Rights Tabulation <br />Storage Rights <br />Storage rights filed on the natural lake and subsequent storage rights filed in 1877 and 1890 <br />brought the total storage capacity of Ish Reservoir to 2,546 ac-ft. Enlargement of the reservoir by <br />the New Ish Ditch Company brought the total decreed storage capacity to 7,344 ac-ft, as <br />summarized in Table 3. <br />Table 3 <br />Storage Water Rights -Ish Reservoir <br />Source Appropriation Adjudication Administration Decreed Notes <br />Date Date No. Amount (ac-ft) <br /> 6/30/1875 6/29/1916 14691.09312 1,241.46 <br />Littl <br />Th 5/20/1877 6/29/1916 14691.10002 553 <br />ompson <br />e <br />Ri <br />er 9/16/1890 6/29/1916 14869.0 751.59 <br />v 1/4/1904 6/29/1916 19726.0 4,797.73 lgt Enl. <br /> Total 7,343.78 <br />Source: Colorado Water Rights Tabulation <br />Boulder Larimer Ditch Memorandum.doc 8 of 11 October 28, 2004 <br />