WSP06826

• File Number: 8441.600.20
• Description: Pleasant Valley Pipeline
• State: CO
• Basin: South Platte
• Date: 11/1/2000
• Author: USDOI/BOR
• Title: Pleasant Valley Pipeline Draft Environmental Assessment
• Water Supply Pro - Doc Type: Publication

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PLEASANT V ALLEY PIPELINE
ENVIRONMENTAL ASSESSMENT

The majority of additional water supply would need to be obtained by the purchase
and transfer of existing irrigation water. Additional water supplies are potentially
available from a number of ditch companies. The acquisition of additional water rights
would occur over time as water demands increase and would require a transfer from
irrigation to municipal use.

Current C-BT water supplies available to the Tri-Districts average 18,365 acre-feet.
Projected additional raw water demands range from about 17,609 acre-feet in 2002 to
51,015 acre-feet in 2030 (Table I). To meet the projected demand, about 32,650 acre-
feet of additional raw water is needed by 2030. Anticipated diversions through the PVPL
for the Soldier Canyon WTP would range from 16 acre-feet in 2002 to 27,694 acre-feet in
2030 (Table 2). It is assumed that additional C-BT units of up to 4,956 acre feet would
be available by July 2030 to meet the total projected demand (TZA 2000).

Greeley. The City of Greeley currently receives a portion of its water supply from
the Poudre River and during the summer from the Charles Hansen Supply Canal. There
is presently no winter delivery system available to the City for receiving C-BT water
from Horsetooth Reservoir. The PVPL would allow the City of Greeley the option of
taking delivery of its C-BT water from Horsetooth Reservoir during the winter.
Anticipated deliveries depend on the water year, water quality in the Poudre River, and
any emergencies that require use of C-BT water. The PVPL would be used primarily as a
backup delivery system to provide secure year-round water deliveries to the City. ' A
maximum delivery rate of 30 mgd would be delivered to Greeley's Bellevue WTP in the
PVPL.

Project Schedule

The anticipated construction schedule for the Proposed Alternative is to complete the
final design by the winter of2000 with a request for bids in early 2001. A construction
award would be made in the spring of2001. Pipe fabrication and mobilization would
begin in the summer of2001, and pipeline installation would take about 12 months
beginning in the mid-summer of2001. Following final testing, the pipeline would be
operational in early 2002.

No Action Alternative
For each entity participating in the Pleasant Valley Pipeline Project, the No Action
Alternative would consider a variety of options that would not require Reclamation's
authorization but would involve other environmental permitting. No other single
cooperative project has been identified that would meet the needs of all of the
participants. Fort Collins, the Tri-Districts, and Greeley have considered several options
for meeting their individual water needs. Potential options primarily involve construction'
of individual pipeline projects or additional acquisition ofC-BT units. Below is a
discussion of individual projects that these entities could consider in lieu of the Pleasant
Valley Pipeline.

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