PROJ00246

• Contract/PO #: C153829
• Contractor Name: Eagle Park Reservoir Company
• Contract Type: Loan
• Water District: 37
• County: Eagle
• Bill Number: SB 96-153
• Loan Projects - Doc Type: Feasibility Study

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cfs. For the 12 months ending October 31, 1996, Vail Valley produced 3,216 acre-feet for
municipal purposes and diverted 114 acre-feet for irrigation of the Vail Golf Course and
181 acre-feet for snowmaking at the Vail Ski Area. The potable water production equates
to about 335 gallons per day per SFE for in-building and outdoor water uses.

Plan for Augmentation. Vail Valley's plan for augmentation was decreed in Case
No. 82CW328. The plan includes both relatively ju.nior direct flow and storage rights
decreed for municipal purposes and relatively senior rights originally decreed for irrigation
purposes. When the municipal rights are out of priority, the depletions are replaced with
water from one or ,more of the following sources:

1) Historical consumptive use attributable to irrigation of hay and pasture grasses per
the decrees in Case Nos. 82CW328, 79CW124, W-2256 and W-2664;

2) Water released from Black Lakes or reservoirs that will be constructed in the future;

3) Water released from the "historic users pool" in Green Mountain Reservoir by the
U.S. Bureau of Reclamation; and

4) Water released from Green Mountain Reservoir under a water service contract with
the U.S. Bureau of Reclamation.

The historical consumptive use, described in item 1, totals 902 acre-feet annually
and is distributed monthly from May 20 through October 25 as shown in Table A of the
decree in Case No. B2CW328. It was attributable to irrigation of grass hay fields and
pasture by 26 irrigation ditches in the Gore Creek basin. The historical consumptive use,
aka stream credits, replaces out-of-priority depletions caused by Vail Valley's water uses
and can be stored by exchange in several reservoirs. From Table D of the decree, Vail
Valley's depletions during the irrigation season will total 522.1 acre-feet. Accordingly, up
to 379.9 acre-feet of historical consumptive use could be exchanged to storage as shown
in Table 2. The application in Case No. 95CW348 requests that Eagle Park Reservoir be
used as an alternate place of storage for the historical consumptive use. While some of the
water rights associated with the old irrigation ditches are junior to some of the major water
rights on the Colorado River, such water rights are protected from river calls by releases
from the historic users pool in Green Mountain Reservoir. Pertinent information concerning
the water rights included in Case No. 95CW348 is included as Table 3.

Reservoir Storage. Vail Valley constructed a new dam at Black Lake No.1 in 1992.
As further described by an agreement between ERWSD and CWCB, up to 227 acre-feet
from Black Lake No. 1 and 73 acre-feet from Black Lake No. 2 can be released during the
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