Laserfiche WebLink
<br />F~..r). <br />, <br /> <br />.f-; t-:. <br /> <br />Creek and the Roaring Fork River. Two rights, which were senior to the Board's 1886 right, were also <br />not receiving their full-adjudicated amount. The Division 5 engineer's conclusion was that there was <br />simply not enough water to satisfy all users as a result of low stream flow conditions. e <br /> <br />Gunnison River Basin Issues <br /> <br />Aspinall Unit Operations - The annual Aspinall Unit coordination meeting was held on Aug. <br />17. Blue Mesa did not fill this year because of rapidly declining inflows (the April-July reservoir level <br />was 504,000 acre-feet or 72 percent of average). The peak flow in the Gunnison Gorge was 3,200 cfs <br />around May 21. Summer flows in the Gunnison Gorge have been around 1,000 cfs. Flows in the Gorge <br />will be between 700 and 800 cfs for the remainder of the year. <br /> <br />Gunnison River Flow Recommendations - The USFWS has released the draft flow <br />recommendations for the Gunnison River and Colorado mainstem at Cisco, Utah. Staff has shared <br />these recommendations with the Board previously and continues to evaluate them. Our memo, <br />written by Michelle Garrison, specifically stated that we have continued to review the flow <br />recommendations for the Gunnison River near Grand Junction and have further concerns about the <br />upper end of the recommended range of base flows for the average dry and average wet years (2000 <br />cfs) and the moderately wet and wet years (2500 cfs). We continue to review the base flow <br />recommendations for Colorado River at Cisco, UT, and the peak flow recommendations for both <br />areas, but felt the base flow issue was important enough to warrant immediate comment. <br /> <br />Our studies indicate there is not sufficient reservoir storage available to provide the <br />recommended base flows of 2000 cfs or 2500 cfs during the late summer and through the winter of <br />the average dry, average wet, moderately wet, and wet years. Furthermore, providing those flows <br />substantially lowers the reservoir storage and has a strong negative impact on the ability to use the .- <br />Aspinall unit to help sustain a high peak flow the following spring. .- <br /> <br />We strongly urged that these base flow recommendations be reconsidered. A copy of our <br />memo is attached <br /> <br />Platte River Basin <br /> <br />South Platte Decision Support System - A consultant team consisting of the firms listed below <br />has been selected to perform the feasibility study that will guide the development of SPDSS. <br /> <br />Brown & Caldwell Overall study management <br />CDM Groundwater modeling <br />Helton & Williamson Surface water modeling <br />Leonard Rice eWE & Bishop-Brogden Consumptive Use & Water Budget <br />Riverside Technology System Integration & GIS <br /> <br />An Advisory Committee will be established to help identify SPDSS needs and functionality. A <br />letter of invitation was sent to over 100 agencies requesting an expression of their interest in <br />participating on the Advisory Committee. A kickoff meeting of those interested in participating on the <br />Advisory Committee has been set for Oct. 10 at 1:30 at the Northern Colorado Water Conservancy <br />District. <br /> <br />Chatfield Storage Reallocation Feasibility Study - The purpose of the feasibility study is to <br />investigate the potential for reallocation of storage in Chatfield Reservoir from flood control to multi- <br />purpose use, to formulate plans of modification, and to obtain approval from higher Corps authority. <br /> <br />We are now sponsoring monthly progress meetings. At our last meeting on Sept. 9 we began <br />work to ensure there is coordination between the project managers for the South Platte Decision Support <br /> <br />e <br /> <br />II <br />