PUB00060

• Year: 1998
• Title: SECWD/Arkansas Basin Future Water and Storage Needs Assessment
• Author: GEI Consultants, Inc
• Description: SECWD/Arkansas Basin Future Water and Storage Needs Assessment
• Publications - Doc Type: Water Resource Studies

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Water and Storage Needs Assessment
SECWCD/Assessment Enterprise
December 10,1998

Transmountain Diversion

1986-1995
Avera!!e DeIiverv(1) Water ADDortioned to(l):
(af/yr)

1,012 Pueblo

Ewing Ditch
Wurtz Ditch

2,549 Pueblo

. Homestake Tunnel

22,187 Aurora/Colorado Springs

. Busk-Ivanhoe Tunnel

4,808
40,349
129
131,464

Pueblol Aurora

Twin Lakes Tunnel

Colorado Springs/Pueblo/Others
Catlin Canal Company

Larkspur Ditch

(1) Source: Upper Colorado River Commission 1995 Annual Report.
(2) Arkansas River Basin Study Phase I Report (Boyle, 1988).

A key transmountain diversion for the SECWCD service area is the Fry-Ark Project, which
began diversion operations in 1972, Water is diverted from the mainstream of the Fryingpan
River and its tributaries and delivered through the Charles H. Boustead Tunnel to the Lake Fork
of Arkansas River. Imported water is 'stored in Turquoise Reservoir on the Lake Fork and in
Twin Lakes via conveyance through the Mt. Elbert Conduit. Terminal storage for Fry-Ark water
is provided at Pueblo Reservoir. Turquoise Reservoir also regulates transmountain diversions
through the Busk-Ivanhoe Tunnel and the Homestake Tunnel. . Twin Lakes Reservoir stores
water imported through the Boustead Tunnel, as well as water imported through the Homestake
T'lnne1 D'lring 1986-1995, an a"erage of 48,715 afi')'I'-Was imported to the .\Fk-ansas Bastn-
through the Boustead Tunnel. In 1995, a wet year, 90,460 afwas brought through the tunnel and
stored in available reservoir space. In 1996, only 36,000 af was brought through the tunnel
because of carry-over in East Slope storage from 1995. Details on operations of the Fry-Ark
Project are provided in Section 7.0 of this report.

2.1.3 Operation ofthe Fryingpan-Arkansas Project

Operation of the Fry-Ark Project was originally defined in the report authorizing the Project and
has evolved over time. Currently, Project operations, which are implemented by the USBR, can
be summarized as follows:

I. Adequate vacant space is created in Turquoise Lake and Twin Lakes by the end
of April, in anticipation of the current year diversions of Project and non-Project
water from the west slope. This is accomplished through the release of Project
water from the upper two reservoirs and conveyance of such water down the

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~ GEl Consultants, Inc.

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