PROJ00456

• Contract/PO #: FS0003X
• Contractor Name: Clear Creek Project CWRPDA
• Contract Type: Loan
• Water District: 0
• County: Clear Creek
• Loan Projects - Doc Type: Feasibility Study

'--'

TABLE 2.1

Step 2 Project Water Supply Scenarios
Scenario Project Water Sources

Alliance Decree (AD)

South Platte Exchange (SPX)

Water available to a 1981 conditional water
right owned by the Alliance.

A 11 i ance sources (exc 1 ud i ng A 11 i ance Decree)
which can not be effectively regulated with
existing Alliance storage.

Flows which were modeled as passed from
Clear Creek Basin to satisfy South Platte
demands. Source availability dependant on
provision of substitute source to South
Platte users.

Alliance Transfer (AT)

Alliance Sources (AS)

Combination of AD, AT, and partial SPX (SPX
as limited by Alliance exchange sources).

Combination of AS and remaining SPX.

Alliance Sources Plus
Remaining SPX (ASX)

Basin Management (BAM)

Basin water sources (excluding SPX) which
can not be effectively regulated with
existing Basin storage.

'-';'

'-

Basin Combined (BC)

Combination of BAM and SPX.

TABLE 2.2

Maximum Firm Yield and Associated Reservoir Capacity
in Acre-Feet

Project Required Project
Firm Yield(l) Storage(2J Active Storage
Water SUDplv Scenario af/vr af {Firm Yield Ratio

~!

l. AD- Alliance Decree 16,100 158,000 8.0
2. AT- Alliance Transfer 6,100 62,000 5.2
3. SPX-South Platte Exchange 10,900 59,000 2.6
4. AS- Alliance Sources 26,000 180,000 5.8
5. ASX-Alliance Plus 38,700 175,000 3.7
6. SAM-Basin Management 44,000 237,000 4.7
7. Be- Basin Combined 61,000 189,000 2.6

(l)Production of firm yield for some scenarios requires acquisition of
additional water rights or legal transfers.
(2}Includes 30,000 af for recreation pool and dead storage.

2-2