BOARD00245

• Board Meeting Date: 9/19/1991
• Description: Agenda or Table of Contents, Minutes, Memos
• Board Meetings - Doc Type: Meeting

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The operating concept is the utilization of Windy Gap Project
water supplies through a new pipeline to be constructed from Carter
Lake of the Northern Colorado Water Conservancy District (NCWCD) to
the City of Broomfield. The proposed project will also include a
new water treatment plant ana additions to the treated water
distribution system. These treated water improvements will not be
a part of the city of Broomfield's application to the CWCB.
The proposed project will consist of the following components:
1. Raw Water {4,293 acre feet)--The firm yield of
Broomfield's existing water rights in Great Western
Reservoir is 4,293 acre feet as estimated by the city's
water rights engineering consultant. To replace this
water, Broomfield has contracted with the City of Boulder
for purchase of 42.93 units of Windy Gap Project water.
The Windy Gap Project is an existing raw water supply
system which was developed by the Municipal Subdistrict
of the NCWCD.
2. Firm Yield--The purchase of 42.93 units of Windy Gap
water represents a nominal or average yield of 4,293 acre
feet. This is not a firm yield, that is to say that
4,293 acre feet would not be available in a dry year.
For that reason, other measures such as additional
storage must be undertaken to assure a firm yield. Given
the present uncertainty as to the quantity of additional
storage required, it is anticipated that the most cost-
effective method to provide that storage to "firm up" the
yield is through a contractual arrangement with the
NCWCD. The amount of participation would be equal to
$13.0 million, the estimated replacement value of
Broomfield's existing reservoir.
3. Raw Water Transmission--A new raw water pipeline will be
required to transport the Windy Gap water from Carter
Lake to a new water treatment facility. Broomfield
anticipates participation in a Municipal Subdistrict,
NCWCD raw water pipeline project presently in preliminary

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