PROJ00106

• Contract/PO #: C153494
• Contractor Name: Loveland, City of
• Water District: 0
• County: Larimer
• Bill Number: XB 99-999
• Loan Projects - Doc Type: Feasibility Study

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whereas in Phase I deficits occurred much less frequently at one every 6.2

years. Thus, future deficits are predicted to be less severe in magnitude

but more frequent in occurrence than originally estimated in Phase I. The

principal reasons for these differences is described below.

Inclusion of Eas't Slope storage capacity and allowance for the carry-over
of CBT quotas resulted in a net increase in CBT and Yindy Gap availability
during critically dry periods. The capacity constraints of the CHFC
minimally affect the City's water supply during critical periods; a
simulation run without any constraints reduced the Design Condition deficit
by approximately 300 AF. The constraint of not diverting more than 50
percent of Loveland's CaT entitlement during the winter (see Technical
Appendix) resulted in approximately equal occurrences of many low-magnitude
deficits during the late fall (September and October) and early spring
(March) months. In conrast, Phase I showed the vast majority of deficits
to occur in the spring. In Phase I, deficits were of greater severity but
occurred less frequently.

Table 3-1 provides a summary of the water supplies diverted from the City's

various sources of water. The values shown represent average annual amounts

computed over the entire 1,000-year simulation. To facilitate comparisons

to results presented in subsequent sections, these values are shown to the

nearest acre-foot/year (AFY); this does not imply that the accuracy of the

modeling results is within one AFY. The amounts of water available in any

given year were, in many cases, much greater than the amounts utilized,

since demand could often be met using less than the total available supply.

On average, the availability of Transfer Decree waters is estimated at
11,499 AFY under the Design Conditions. Of this amount, the City will
divert an average 6,409 AFY (56 percent) directly to demand. Approximately
5090 AFY of transfer decree water would remain. The full amount of the
remaining water is not storable due to the limitations of the Transfer
Decree and Charles Hansen Feeder Canal capacity constraints. The model
results indicated that an average value of 3,442 AFY would be available for

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