WSP09806

• File Number: 8273.100
• Description: Colorado River Basin Salinity Control - Federal Agencies - Bureau of Reclamation
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 11/1/1985
• Author: BOR
• Title: 1985 Evaluation of Salinity Control Programs in the Colorado River Basin
• Water Supply Pro - Doc Type: Report/Study

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Under Construction

Grand Valley Staqe Two CO (BR/USDA)

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Reclamation's data collection for the Stage Two area speci-
fications and designs are underway. Reclamation funded the
Colorado Water Conservation Board to do a study of how best
to consolidate private lateral organizations into legal
contracting entities. Private lateral organization struc-
ture was discussed in several meetings during the year and
some progress has been made.

The Colorado Division of Wildlife final report on Stage One
wildlife monitoring was submitted. The results of three
years monitoring changes in fish and wildlife in Stage One
were used in preparing the Environmental Statement on stage
Two and in developing fish and wildlife habitat replacement
for the Stage One area.

USDA's onfarm and off-farm lateral improvements in Stage One
and Stage Two Grand Valley have been accomplished primarily
through the annual practice cost-share provision of the
ASCS's ACP program. Onfarm pipeline and ditch lining
installed during 1985 was 136,961 feet and 23,594 feet
respectively. Total onfarm pipeline and ditch lining
accomplishments thus far are approximately 140 miles of
pipelines and 40 miles of ditch lining. Combined, these
accomplishments represent about 27 percent of the total
Grand Valley project goal.

USDA's off-farm lateral improvements for 1985 consisted of
18,823 feet of pipeline improvements and 2,734 feet of ditch
lining. Total off-farm lateral accomplishments for the pro-
ject are 36.4 miles of pipelines and 11.1 miles of ditch
lining, representing 25.1 percent of the overall project
goals.

USDA's onfarm seepage or deep percolation reductions from
all treatments to date are estimated to be 4,023 acre-feet
per year for an average salt load reduction of 20,231 tons
per year. Off-farm lateral seepage reductions from all
treatments to date are 2,242 acre-feet per year for ll,277
tons of salt load reductions per year. Total seepage/deep
percolation reductions are 6,265 acre-feet for 1985 for a
31,508 tons per year salt load reduction from USDA activi-
ties in both Stage One and Stage Two.

Paradox Valley CO (BR)

Deep well injection still appears the most cost-effective
solution for disposal of collected brines. Geophysical data

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