PROJ00079

• Contract/PO #: FS0012X
• Contractor Name: New Castle, Town of
• Contract Type: Loan
• Water District: 0
• County: Garfield
• Loan Projects - Doc Type: Feasibility Study

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~7CW373

Williams to the Town of New Castle as provided in the above-referenced
Annexation Agreement.

B. All water rights may be used as they have been historically until used for the
P.U.D. development as specified in this plan. These water rights will be used to
augment the water supply to the future service area, of the Town of New Castle
which is designated as the Castle Valley Ranch P.U.D. Attached as Exhibit "B"
is a map showing the location and area of the Town of New Castle and the Castle
Valley Ranch. The Castle Valley Ranch P.U.D. comprises 653.63 acres, more
or less, and is located in parts of Section 25, Township 5 South, Range 91 West,
and Sections 29, 30, 31, and 32 of Township 5 South, Range 90 West. A legal
description of such property is attached hereto as Exhibit "C".

C. The Applicant plans to develop the property for residential and/or commercial
uses. The. Town of New Castle has adopted the "equivalent residential unit"
(EQR) to define water requirements. The EQR unit equates into different types
of municipal uses. The EQR is defined as a single-family residential housing unit
containing an average of 3.5, people using 100 gallons of water per person per
day with a 5 percent in~house consumptive use. 2,500 square feet of irrigated
lawn and garden is included for each EQR and is based on a 2.26 AF/acre
application rate with 70 percent of the water applied being consumptively used
at a unit consumptive use of 1.56 AF/acre. For irrigation of parks and open
space or for irrigation of lawn and garden in excess of 2,500 square feet (for a
single-family residence), each 2,500 square feet of irrigation shall be considered
to be the equivalent of 0.75 EQR pursuant to the Town's ordinance. The Town's
ordinance, which is attached hereto as Exhibit "D" and incorporated herein by
this reference, has a table of equivalent residential units which allows the
computation oftota! EQRs for the purpose of computing water requirements.
Development may occur for a variety of uses, so long as (1) the total irrigated
area in the development does not exceed 213.8 acres; (2) total consumptive use
in the Castle Valley Ranch P.U.D. does not exceed 446.22 acre-feet per year;
and (3) acreage is retired from irrigation and water rights are conveyed from Eric
C. Williams to the Town of New Castle as described herein in sufficient amounts
to support development.

D. The historic consumptive use associated with 1 acre of historically irrigated
acreage on the Castle Valley Ranch has been calculated to be equivalent to the
consumptive use associated with 10 EQR during the historic irrigation season.
Therefore, if the total 333 historically irrigated acres_ were dried up, the
maximum number of EQRs which could be developed within the Castle Valley
RanchP.U.D. would be 3,330. The upper limit of potential development at the
Castle Valley Ranch P. U.D. under this augmentation plan is 3,330 EQR units,
however, the limitation may be less under applicable zoning and by actual
operation of the_ water system under this Decree. Currently, the Town of New
Castle has approved only 2,500 EQR units. The Applicant shall be required to
check the assumptions in this paragraph as set forth below in Paragraph 7. F .

C:\FIW\NEWCAST.IDE
July 17. 1991

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