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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deliver coal to the IPP project in western Utah
does not seem feasible unless the user of the
coal would pay for a considerable part of the
collection, storage, and pipeline system. Using
drainwater for tar sands development can remove
7 mg/l TDS at Imperial Dam at a cost of $627rOOO
per mg/l. It could be made particularly attrac-
tive if the user of the water would pay for the
O&M costs. However, there is considerable uncer-
tainty regarding the viability and timing of the
tar sands industry. The use of drainwa ter for
coal washing is not cost effective and there is
little salinity improvement, but if the user were
willing to bear part of the cost, it may be worth
considering further.

Selective Withdrawal and Treatment or Disposal.
None of the selective withdrawal options are cost
effective. Thus, unless a way can be found to
reduce cost, they are probably not worth con-
tinued evaluation.

Retire Farmland and Use the Fresh Water Saved for
Other Beneficial Use. The cost of all options
under this alternative is in the range of
$1,300,000 to $1,400,000 per mg/l. Whether these
options are viable is dependent on the extent of
cost sharing by industry. The salinity impact at
Imperial Dam would be &.6 mg/l for the tar sands
option.

UNRESOLVED ISSUES

During the development of
issues listed below could

the

Appraisal Level Design, the
be resolved because of lack

not

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