WSP06690

• File Number: 8277.500.10
• Description: Price and San Rafael Basin Unit - Colorado River Water Quality Improvement Program
• State: UT
• Basin: Colorado Mainstem
• Date: 1/1/1983
• Title: Appraisal Level Designs and Cost Estimates Status Report
• Water Supply Pro - Doc Type: Report/Study

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.. Chapter 11
.. CONCLUSIONS

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PRELIMINARY EVALUATION SU~~RY

Based primarily upon
clusions regarding each
lows:

cost effectiveness, general
alternative are summarized as

con-

fol-

1. No Action. Various options of the no action al-
ternative reflect what may happen without a
federally funded salinity control project. How-
ever, there is an element of uncertainty associ-
ated with each option. In fact, some possibil-
ities may not develop unless they are a part of a
Federal project. In any event, the salinity im-
pacts from no action will occur much later than a
federally funded project. Further evaluation of
no action and its interactions with other alter-
natives will be deferred until after public in-
put, USBR review, and narrowing of possible al-
ternatives.

2. Irrigation Improvements. Generally, the lining
of the worst-leaking irrigation canals as an al-
ternative by itself is not an effective salinity
control measure. However, in combination with
other irrigation and winter watering improve-
ments, it may prove to be worth additional con-
sideration. Improving on-farm management prac-
tices is cost effective ($175,000 to $405,000 per
mg/l) in both the Price and San Rafael River Ba-
sins. Improving winter watering practices by
enlarging and lining stock ponds and eliminating
water in the canals in the winter is also cost

11-1

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