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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August 8, 1995
Honorable Mayor Rippy and Board of Trustees
Town of New Castle
Page 2

Attached to Mr. Bussone's letter were several enclosures of which included flow records for
East Elk Creek, Main Elk Creek and West Elk Creek. Additionally, attached were the findings
of fact, conclusions oHaw and judgment of decree concerning the application for water rights
for the Town of New Castle, Colorado, and Eric C. Williams in Garfield County, Colorado.
This particular document is specifically what Mr. Bussone refers to as Case #83CW373. It
is important to note that, in that particular case, the first 1400 EaR for Castle Valley Ranch
will be augmented using the Coryell Ditch water rights which includes the senior water right
on ,East ,ElkCr.eek. In essence, the rate of exchange for the first 1400 units in the Castle
Valley Ranch development is 0.02 cfs for every 10 units placed on the Town of New Castle
water works system and pipeline.

Therefore, the 0.9 cfs discussed-as'a -limit-ed physical water supply to the Town of 'New
Castle from East Elk Creek in a low flow year is actually increased to 1.282 cfs when
considering the exchanged water rights from the Coryell Ditch with the Castle Valley
Development. This is based upon the consideration that 191 units have been constructed in
Castle Valley Ranch.

As the Castle Valley Ranch Subdivision continues to place units on the Town's water system,
an'-exchangecof water rights from a senior right on East Elk Creek will be transferred to the
Town. Thus, in the low flow year, theD.9 cfs is no longer applicable as the definite water
rights for theTown of New Castle. However, this water right increases in proportion to the
amount of units being developed in Castle Valley Rancb. It is important to note, however,
that as these water rights are being transferred totheTownofNew Castle, these water rights
can only be exclusively used for augmentation of the Castle Valley Ranch developnnmt.

Bearing the previous discussion in mind, this report focused upon tbe number of EaR's that
the Town's, existing Jegal and physical water right could support prior to the development of
Castle Valley Ranch. Further, irfocusesonthe TownLs-physical'andlegalwater-supplieswith
the inclusion of Castle Valley Ranch and, finally, it will focus upon the Town's ability to treat
the physical and legal water supplies.

l. POPULATION AND EQR CALCULATIONS

To properly define the supply and demand upon the Town's water system, it was necessary
to obtain information pertaining to the number of and type of units within the Town limits (or
on the Town's water system). You will find attached two sheets of information identified as
"Data/Information For Planning", prepared by Michael Blair, T-own of New Castle's Planner.
In this information, a land use breakdown prepared on November 30, 1994, was utilized to
develop a profile for EaR calculations also attached. These numbers were revised accordingly
to bring them up to date as of August 1, 1995.

SCHMUESER GORDON MEYER, INC.