WSP13020 ‎(2)‎

• File Number: 8430.500.60
• Description: Denver Water
• State: CO
• Basin: South Platte
• Date: 9/15/2003
• Author: USACOE/Denver Water
• Title: MOFFAT Tunnel System Project Information Document / EIS
• Water Supply Pro - Doc Type: Publication

IV: IRP Future Water Supply Strategy

Through the IRP process, Denver Water adopted a near-term water supply strategy that
includes an aggressive conservation program, a non-potable recycling project, system
refinements, new supply development through cooperative projects and finally, new
supplies developed by Denver Water. The inclusion of the first three components
establishes the Board's commitment to maximizing the efficiency of its water supply
system.

· Denver has committed to a conservation program intended to achieve 29,000 acre-
feet of water savings by 2050, In the near-term planning horizon, 16,000 acre-feet of
savings will be relied upon as a source to meet future demands,
· System refinements, including the development of gravel pit storage to optimize the
amount of reusable effluent that can be captured and used, High Line Canal efficiency
improvements, and the accounting for reusable lawn irrigation return flows are all
projects to make existing supplies go further, and in a sense can be considered
conservation efforts.
· The non-potable recycling plant will allow Denver Water to rely upon a significant
portion of its reusable water supplies that otherwise would be lost to Denver Water as
a water source.

Table 1
Near-Term Strategy (through 2030)

Component
Conservation
Non-Potable Recycling
System Refinements
Cooperative Projects
New Supply Projects
Total

~
Conserved
Recycle
Supply
Supply
Supply

Acre-Feet
(2001)
16,000
17,000
13,000
10,000
15,000
71,000

Through these aggressive measures to maximize the efficient use of existing water
supplies, the need to develop new water supplies is reduced. Of the supplies identified in
Table 1, non-potable recycling and system refinements will be on line within the next ten
years and therefore have been included in the 375,000 acre-feet of firm yield shown in
Figure 5, There is a need for an additional 25,000 acre-feet of new supplies, of which
15,000 acre-feet would be derived from the Moffat Collection System Project, As a
result of a 1999 agreement with the City of Arvada, if Denver Water is able to increase
the firm yield of the Moffat Collection System, Arvada is entitled to purchase up to
3,000 acre-feet of firm yield. Because this amount is above the 15,000 acre-feet of
supply needed by Denver Water, the total firm yield that needs to be developed from the
Moffat Collection System Project is 18,000 acre-feet.

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