PUB00079

• Year: 1981
• Title: Colorado Water: Key to Tomorrow's Quality of Life
• CWCB Section: Water Conservation & Drought Planning
• Author: 20 of and for Wester
• Description: Overview of 23 Colorado water projects
• Publications - Doc Type: Historical

GEER CANYON (Continued)
municipal water service, Industrial water needs, stream
fishing. electrical power requirements and other such
general needs aaftood control. Improving water quality
and recree.tlon.~,
With the formation of the District. the Board of Directors
adopted the following goals and objectives: 1) Protection
of existing decrees In tha Basins; 2) Provide additional
water storage; 3) Modification of irrigation systems to
provide better management and higher efficiency; 4) Meet
water quality standards without negatively affecting water
users;
Alter working nine years to develop the overall water
management plan, It was datermlnl!d that the needs of all
, basin water users as outlined above can be met by the
construction of Cofftntop Reservoir and Geer .Canyon
R_rvolr. '
Ptiyslclll Facia and Figures:
Height, length and type of dam: Height - 260 ft. Length
- 2250 fl; Type - earth-rock fill
Storage capacity (A.F.) of reservoir. 25.000 acre-feet

Shoreline and surface area: Shoreline approximately 6
miles, surface area approximately 250 acres

Average annual power generation: none

Population to be served: Up to 50,000 people

Irrigated acres to be served: 20.000 acres

Estimated cost $25,000.000

Construction schedule: Begin construction 1985; Com-
plete construction 1990 . .

Proposed Sources of Funding:
. To be detennlned,

'\

For Further Information ContaCt:
James A. Cines; ExecutlveDlteclor .
St. Vrain & Left Hand Water Conservancy District
Burger Building, 500 Coffman Slnlet,Sulte 107,
Longmont, CO 80501
772-4060

SOUTH PARK

Location:
Park County. Colorado.
Sponsor:
City of Thornton.
Prinary Purpose of the Project
Municipal water supply.
Secondary Benefits:
Recreation and possible hydro-electrlc generation.
History and Background:
The City of Thornton has been active in acquisition of
water rights In South Park since late 1977, This Involve-
ment and commitment to develop additional firm yield of
these water rights led to the initiation of a reconnaissance
level investigation of a reservoir site in South Park early in
1978. In August 1979, an agreement was entered into with
the City of Aurora to cooperate on construction of water
storage facilities in Park County, To this end, Aurora has
commenced construction of Spinney Mountain Reservoir
on the Middle Fork of the South Platte River and Thornton
is complating the site selactlon process of an additional
reservoir moat likely to be located on Tarryall Creek, To
date, Thornton has Informed Park Gounly Planning
Officials and met with the Colorado Department of Natural
Resources to describe the progress on this project,
The Thornton reservoir is preliminarily sized for ap-
proximately 20,000 acre-feet capacity and will be used
primarily for municipal waterslorege, Secondary benefits
will include recreation and possible hydro-electrlc power
generation. There is some possibility that other entities
could also participate In this project as the final design and
sizing has not as yet been completed, To this end, interest
by other parties for joint participation will be solicited ,

, ,.;

Physical Facts and Flgu....:
Not Available,

Proposed Sources of Funding:
City of Thornton,

For Further Information Contact

Lloyd J. Gronnlng, P,E., Manag~
Planning and R_ch, Thornton Utilities Department
8992 North Washington St., Thornton, CO 80229
289-5801

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