Minutes Nov 2007 CBRT

• Basin Roundtable: Colorado
• Title: November 07 Minutes
• Date: 11/26/2007
• Basin Roundtables - Doc Type: Minutes

vi. John Redifer noted that the study has to be done, and whether the information is used in
a lawsuit is beside the point.
b. Roaring Fork Water Shed Study Phase II. $40,000 from Basin Account
Phase 1, which created the State of the Roaring Fork Watershed Report, and which
received $40,000 from the Basin Account, is nearly complete.
ii. Phase 2 is designed to generate a plan to convene stakeholders, prioritize conservation
and water development projects, recommend legislative and regulatory actions to local
governments, and identify gaps requiring further study.
iii. The Phase 2 budget is $101,000, and the Roaring Fork Watershed Study Group is
requesting $40,000. Other fenders include local towns and county governments,
Gunnison County, the Colorado River Conservation District, and the Roaring Fork
Conservancy, which is also the primary contractor developing the study
c. Old Dillon Reservoir Enlargement: $100,000 from the Basin Account.
Dan Burroughs, the Dillon Town Engineer, presented a proposal for $100,000 to pay
for engineering and environmental assessment studies to enlarge Old Dillon Reservoir
from its existing 46 AF capacity to 250-280 AF. Old Dillon Reservoir sits between
Interstate 70 and Dillon Reservoir just before I-70 drops down to Silverthorne and
crosses the Blue River outflow from Dillon Reservoir. The towns of Dillon and
Silverthorne and Summit County support the project; for convenience, they are
referenced together as Dillon below.
ii. The reservoir enlargement is expected to cost $7-8 million, and Dillon plans to request
construction funding from the CWCB Constn~ction Fund to pay for the project. Dillon
has already spent $190,000 on a feasibility analysis. Dillon hopes to have approval for
the project by September 2008, perform engineering work in the winter of 2008-09, and
begin constn~ction in May 2009.
iii. This amounts to a cost of $40,000 per acre foot of new water. Water in Clinton
Reservoir (4,372 AF capacity) now sells for $30,000 per acre foot; this reservoir is one
of Summit County's main water sources, and it sits southwest of Hoosier Pass.
Dillon's only existing water rights are to 20 acre feet in Clinton Gulch Reservoir and to
36 AF in Old Dillon Reservoir.
iv. Dillon, Silverthorne and Sununit County now have decreed rights for 281 AF, and this
dam will firm up those rights. Taylor Hawes commented that both the UPCO and
SWSI studies identified needs for Dillon, and stated that enlarging Old Dillon Reservoir
will help meet those needs. Carlyle Currier questioned whether Dillon's rights were
too junior to fill the enlarged reservoir, and Dan Burroughs replied that Salt Lick Gulch
it averages 1,200 AF and, in the low water year of 2002, it generated 400 AF.
v. Greg Trainor asked whether Dillon could obtain water from Green Mountain Reservoir
for less than $40,000 per acre. Dan Burroughs stated that there's currently a
moratorium on Green Mountain Reservoir supply contracts, and that it's hard to deal
with large entities such as Denver Water (which owns the water in Dillon Reservoir)
and the BLM which manages Green Mountain Reservoir. Tom Long, Summit County
I:AInterbasin Compact Coimnittee~Basin Roundtables\Colorado~Minutes~Ivlumtes Nov 2007 CBKT.doc 4 l2~-