C153321 Feasibility Study

• Contract/PO #: C153321
• Contractor Name: Ridgway, Town of
• Contract Type: Loan
• Water District: 60
• County: Ouray
• Bill Number: SB 78-69
• Loan Projects - Doc Type: Feasibility Study

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would help persons on a limited income by reducing the water

bill for treated water. Similarly, a reduction in the cost

of operation and maintenance would be accrued in the treat-

ment plant. The lower reservoir would have to be divided

into two zones. The upper portion of the reservoirs could be

used for irrigation and non-potable purposes while the lower

portion is reserved strictly for potable water. Once the top

portion is used, the remainder is available only to the new

water system. While the potable water can be used for irriga-

tion, the aspects of using metered water for this purpose is

not attractive. It still may be necessary to ration the irri-

gation water, particularly in a drought year such as 1977.

Also, with installation of a gate valve in the old line at the

reservoir and drain lines at the lower ends, the old system

could be drained in the winter to prevent freezing.

As with Alternate I, Alternate III will utilize gravity

as the power needed to operate the high rate filter. Operation

and maintenance will be reduced by the exclusion of pumps to

produce the pressure head required. However, operation and

maintenance will increase if water has to be pumped from the

reservoirs. Backflush will be automated by use of a pressure

drop in the filter inducing solenoids to activate backflush

pumps. Discharge will be into nearby Cottonwood Canyon.

The main transmission line from the storage tank to

the Town's distribution system will be 8" diameter Class 200

PVC.

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