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. ' n"'J,:r;{?1 Ul. '!..J ~.....J.. Uncompahgre Valley Project Information July 6, 1993 Page 3 a. Taylor Park-Blue Mesa Storage Exchange. Whenever water that was stored under the UVP's storage right in Taylor Park Reservoir is released, this "exchange" adds an equal number of acre- feet to an account of UVP "credits" in Blue Mesa Reservoir. When project deliveries are called for by the UVP, a physical release is made from Blue Mesa, and an equal number of acre-feet is deducted from the balance of UVP credits in Blue Mesa. A negative balance of credits in Blue Mesa is possible and is always balanced by converting an equal amount of the remaining UVP water in Taylor Park to "Aspinall Credits." Project releases to the UVP are limited to the net amount of UVP water remaining in Taylor Park and Blue Mesa. A "cap" or accrual limit on the total net amount of UVP storage water that may exist at the end of any month in Taylor Park, Blue Mesa, and Ridgway Reservoirs by virtue of original storage in Taylor Park and the two exchanges is implemented as an adjustment, when necessary, to the total number of UVP credits in Blue Mesa. (This limit is in addition to the independent accrual limit on UVP credits in Ridgway, but it serves a similar function of preventing the gradual conversion of all water in Blue Mesa to exchange credits. Both accrual limits are defined in the Ridgway Exchange Agreement.) User Interface. There are no parameters of the Taylor Park-Blue Mesa exchange per se that users can speci fy. However, all calculations related to the exchange begin with the amount of UVP water stored in Taylor Park Reservoir. If the decreed amount of the UVP's storage right were specified by a user to be zero, no water could be stored under that decree or booked over to it, and all of the operations of Taylor Park and Blue Mesa Reservoirs, the exchange, and the UVP Protocol would proceed correctly, with the qualification that there could be no UVP water in Taylor Park for either delivery or exchange. ..il i ~_;.ktib.",_~..._;