PROJ01754

• Contract/PO #: FS0043X
• Contractor Name: Colorado Department of Corrections
• Contract Type: Miscellaneous
• Water District: 0
• Loan Projects - Doc Type: Application

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with two wells which provided the water for the needs of the offender population
and associated facility requirements was decreed in Water Court Case No. W-
3758, Division 5 ("W -3758") on October 17, 1979. In the decree issued in Case
No. W-3758, the court determined that 71.3 acres were historically irrigated with
the Heinze Ditch priorities and that the historical consumptive use was 1.69 acre-
feet per acre. In addition, the decree required that 8.1 acres of lands historically
irrigated by the Heinze Ditch were required to be dried up to offset the depletions
covered by Case No. W-3758. In 1995 in H.B. 95-1352, the Colorado Legislature
directed the expansion of RCC to support additional offenders with the associated
facility requirements. A purpose of this augmentation plan is to cover the
additional 16.28 acre-feet of out-of-priority pumping by Corrections, as described
in Attachment I, above the amounts covered by W-3758 and to provide storage in
RCC Reservoir No. I for 5.89 acre-feet of water during the non-irrigation season
for the W-3758 Decree.

10.2. The decree in W-3758 also covers all of the previous and current water
uses at the Wildlife residence, Park's Rifle Gap State Park campgrounds and
related Park facilities ("the State Park facility"). An additional purpose of this
augmentation plan is to cover the additional out-of-priority pumping of 2.91 acre-
feet, which results in a consumptive use of 2.32 acre-feet, necessary for Parks to
irrigate one acre of land at the Rifle Gap State Park located on lands adjacent to
RCC.

10.3. The decree in W-3758 found that the average daily requirements for the
Honor Camp to be 8,500 gallons throughout the year and the average daily
requirements for the State Park facility to be 4,700 gallons from the March I
through October 31 camping season and 1,500 gallons during the remainder of the
year. Total annual depletions for Corrections and the State Park facility were
determined to be 13.7 acre feet with 7.8 acre feet occurring during the summer and
5.9 acre-feet occurring in the winter.

10.4. On an annual basis, the nature of RCC results in little variation in the
amount of water used in these state facilities. The quantification of water needed
for the expansion of RCC and irrigation of one (1) acre ofland at Rifle Gap State
Park is based upon the planning estimate of 120 gallons per day per offender and a
projected number of 192 offenders2, and that 2.91 acre-feet of water was required
to sufficiently irrigate one-acre of land at Rifle Gap State Park. Consumptive uses
were calculated assuming 100% consumption at RCC and an 80 % consumptive
use efficiency of approximately one acre of lawn grass irrigation at the State Park.
These numbers have been used for the purpose of estimating actual use. The
actual demands, consumptive uses and rates will be determined by accounting.

2 The actual number of offenders at the Correctional Center may vary from this assumption; but in no event shall
the total depletions caused by the pumping for the increased uses at RCC covered by this plan exceed 16.28 acre-
feet.

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