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Riverside Reservoir and Land Co, Agenda Item 15b, March 20-21, 2000 (Updated March 22, 2000) The Riverside Reservoir and land Company The RRLC is a mutual ditch company and a non-profit corporation registered in the State of Colorado. There are 103 shareholders and 2,505 private rights (shares of stock.) The RRLC has the power to set annual assessments to be paid by the shareholders, the power to cut off water deliveries to shareholders that fail to pay their assessments, and the power to offer stock for sale to pay back assessments. The RRLC delivers water to approximately 50,000 acres of farmland located in the vicinity of Fort Morgan. Water Rights The Company's water rights consist of: Table 1: Water Rights owned by RRlC Date Amou nt Comment 4/1/02 16,070 acre-feet Storage 8/1/07 41,437 acre-feet Storage 10/25/10 63,113 acre-feet Storage 12/31/29 56,325 acre-feet Refill storage 5/31/07 417 cfs Direct flow Records of the State Engineer's Office indicate that average annual diversions have been 113,111 acre-feet for years 1997 through 1999. Proiect Description Four alternatives were analyzed in the feasibility study: 1. The no-action alternative. 2. Continue a level of minimum maintenance. 3. Rehabilitate only the river diversion structure ($450,000). 4. Rehabilitate both the river diversion and headgate structures. Alternative 4, rehabilitate both the river diversion and headgate structures, was ruled out because the headgate structure is in generally good condition and functioning satisfactorily. For this reason Alternative 3 was selected, since it is considered to be a reliable approach, and is less costly. The no-action and the minimum maintenance alternatives were considered unacceptable since both would eventually result in partial or total failure of the diversion and inability of the RRLC to deliver water. Selected Alternative 3 involves construction of a reinforced monolithic concrete floor for the new diversion structure. This concrete structure will be supported by pipe piling, and surrounded by sheet piling driven into the riverbed. All wing walls and support walls will be 15 inches thick, and steel reinforced. An Obermeyer Pneumatic Spillway gate and a radial gate will be installed in the river diversion. (The project that the RRLC plans to undertake is very similar to 3 recently completed projects, also funded in part by the CWCB. The South Platte Ditch Company and Weldon Valley Ditch Company rehabilitated their river diversions in 1996 and 1997 respectively. Both projects included the use of Obermeyer Pneumatic gates, and both have operated well. The Sterling Irrigation Company and Julesburg Irrigation District projects are of the same design and nearing completion.) 2