WSP08880

• File Number: 8277.500.10
• Description: Price and San Rafael Basin Unit - Colorado River Water Quality Improvement Program
• State: UT
• Basin: Colorado Mainstem
• Date: 3/1/1986
• Title: Evaluation of the Incremental Cost Effectiveness of Building a Combined Pressurized Sprinkler Irrigation System to Reduce Salt Loading to the Colorado River
• Water Supply Pro - Doc Type: Report/Study

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Water and salt budgets developed by the SCS indicate that for each acre-foot

of water that can be prevented from entering the ground water system in the

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2.6 tar:.s ,;: ss.lt per v2ar .,:~ll be pre\'ented from entering

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the Colorado River.

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It was agreed to use a salt loading factor of 2.4 tons per acre-foot of water

for estimating salt reduction for the combined plan.

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Plan Formulation

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The 1\ureau of Reclamation in its independent activities identified a total of

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29 alt-,=rnative components in 12 broad categories as possible ways to reduce

salt loading. Through a process of screening and input from an interagency

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planning team, 8 alternative plans, plus the future without the project, were

selected for development of appraisal level designs and cost estimates. These

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alternatives were:

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1. Irrigation improvements ( winter watering)
2. Drainwater for cooling
3. Drainwater treatment or disposal
4. Drainwater for industrial use

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5. Selective withdrawal

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6. and 7. Retire farmland and use the freshwater for other beneficial uses

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.8. Coal slurry pipel ine and powerplant cool ing options

From these alternatives the winter watering option was selected as the recom-

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mended pl an.

This plan consists of lining the stock watering ponds to elimi-

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nate the need for running water in a number of canals during the winter.

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