WSP09435

• File Number: 8220.111.I
• Description: Central Utah Participating Project
• State: UT
• Basin: Colorado Mainstem
• Date: 3/16/1987
• Author: USDOI-BOR
• Title: Final Supplement to the Final Environmental Statement Municipal and Industrial System Bonneville Unit
• Water Supply Pro - Doc Type: EIS

SUMMARY

Introduction and Purpose

In 1979, the Bureau of Reclamation (Reclamation) published a Final
Environmental Statement (INT-FES 79-55) for the Municipal and Industrial
(M&I) System of the Bonneville Unit, Central Utah Project and, since
that time, construction has been under way on the water delivery system
of the project. Some aqueducts in the system were officially dedicated
for service on May 16, 1986, while others are scheduled for completion
by early 1987.

The M&I System will be located in Salt Lake, Utah, Summit, and
Wasatch Counties in north-central Utah, as shown on the Frontispiece Map.
Major features of the system include Jordanelle Dam and Reservoir, which
will store 320,000 acre-feet of project water at a site on the Provo
River about 6 miles upstream from Heber City, and the Jordan and Alpine
Aqueduct systems, which will convey project water to areas of use in
Salt Lake County and northern Utah County. The project water supply in-
cludes 70,000 acre-feet of M&I water for Salt Lake County, approximately
11,500 acre-feet of M&I water for northern Utah County, 7,500 acre-feet
of M&I water for the city of Orem, and approximately 2,400 acre-feet of
M&I water for Wasatch County communities which would be provided directly
from Jordanelle Reservoir. The M&I water for Wasatch County is a modi-
fication of the FES plan and most likely would be accomplished by reduc-
ing the amount of M&I water delivered to northern Utah County from that
presented in the FES. In addition, the M&I System will provide 3,000
acre-feet of supplemental irrigation water to the Francis area in Summit
County and 12,100 acre-feet of supplemental irrigation water to the
Heber Valley area in Wasatch County. Construction of the system will
include safety modifications to 15 high country reservoirs on the upper
Provo River and improved and stabilized water levels in 12 of these
reservoirs. Operation of the project will enhance water quality and
recreation values, mitigate adverse impacts to wildlife and stream
fisheries, and provide flood control.

The purpose of this supplement is to report and evaluate two types
of elements--the environmental impacts of proposed modifications to the
M&I System plan and impacts or consultations not previously covered by
the 1979 FES. Proposed actions for which analyses or consultations have
been conducted include:

1. relocating U.S. Highway 189 along an alignment different
from that described in the FES;

2. adding a new Wasatch County road;

3. relocating the outlet works and spillway of Jordanelle
Dam from the right to the left abutment;

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