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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3.0 EVALUATION OF OPERATIONAL FACTORS (TASK 2)

In Phase I, estimates of the magnitude of water supply surplus or deficit
conditions were based on hydrologic factors and water rights constraints.
The first task in Phase II was to assess the impact on total system yield
(for the Design Conditions) of the following:

1. Transmission capacity of the Dille Tunnel.

2. Transmission capacity of the Charles Hansen Feeder Canal.

3. Operation of CBT storage and conveyance facilities relative to
yields from the CBT and Yindy Gap Projects.

CDM met with staff from the NCYCD and the Bureau of Reclamation (BUREC) to
discuss past and future operational rules and policies for the CBT and
Yindy Gap systems. The information and guidance obtained from the staffs
of these agencies was incorporated into the Phase II analyses.

3.1 DELIVERY OF YATER TO THE CITY'S SYSTEM

Figure 3-1 illustrates the various components of the City's raw water
supply system. Both the CBT and Yindy Gap projects derive their supply
from streams in the Upper Colorado River basin. Diversions from these
projects are transferred to the East Slope of the Rocky Mountains through
the Alva B. Adams Tunnel and delivered into Lake Estes. CBT and Yindy Gap
water may be delivered from Lake Estes to the City's Chasteen Grove
Treatment Plant through any of the following routes:

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a. Release to the Big Thompson River for diversion through the
Loveland Pipeline.

b. Release through Olympus Tunnel to the Charles Hansen Feeder Canal
(CHFC), then through the Big Thompson Power Plant (BTPP), then to
the Big Thompson River for diversion through the Loveland Pipeline.

3-1

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