WSP06813

• File Number: 8273.400
• Description: Colorado River Basin Salinity Control - Federal Agency Reports - BLM
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 2/1/1980
• Title: Control of Salinity from Point Sources Yielding Groundwater Discharge and from Diffuse Surface Runoff in the Upper Colorado River Basin - 1978-79 Status Report
• Water Supply Pro - Doc Type: Report/Study

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a. Construction/Development and ,Replacement Costs

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(1)

Collector system

Barrier dam . . .
Sump (gravel pack and
perforated drainpipe).
Pumping plant. . . . . . . . . . .
Amount to be set aside for periodic
replacement of pump (assumes
replacement at 5-year intervals)
$10,000 X 2.44 (Sinking Fund Factor)

$ 24,400

$ 20,000
$ 10,000
$ 10,000

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High pressure, 4 inch, rigid PVC
pipeline, 0.6 mile @ $60,000/mile
Amount to be set aside for periodic
replacement of pipeline (assume a
28-year life), $36,000 X 0.22
(Sinking Fund Factor). . . . . . .

(2) Evaporation pond (4 each)

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$ 36,000

. . . . . . $ 7,920

Protective dike - includes cost to
move earth from inside pond area
to dike site, wet compaction and
grade of dike fill material, and line
inside face of dike with hypalon;
see Day (15) for specific guidelines.

20 ft. high (32 cu. yd./ft) @
$48/running foot, plus hypalon liner
(30 mil) on inside face of dike @.
$20/running foot, 9,953 running feet
of dike. . . . . . . . . . . . . . . . . . $ 676,804

6 ft. high (4 cu. yd/ft) @ $6/running
foot, plus hypalon liner @ $6.40/
running. foot, 5,359 running feet of
dike. . . . . . . . . . . . . . .. . $ 66,452

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Pond liner of 20 mil polyvinyl chloride (PVC)
material (not buried), 80 acres or 387,200
sq. yds.

Cost to prepare pond bottom (grade site flat
and smooth, remove rocks),
$.75/sq. yd. x 387,200 . . . . . .
Cost to purchase and install liner,
$2.00/sq, yd. x 387,200. ; , . . .

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$ 290,400
$ 744,400

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