BOARD02412

• Board Meeting Date: 7/26/1999
• Description: WSP Section - Colorado River Basin Issues - Colorado River Salinity Control - Triennial Report
• Board Meetings - Doc Type: Memo

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Table 1
Colorado River Basin Salinity Control Program
Plan oflmplementation
By 2015
(Values in Tons of Salt Load Reduction Per Year)

I AGENCY II MEASURES I POTENTIAL NEW I TOTAL I
IN PLACE MEASURES
Bureau of 421,000 501,000 922,000
Reclamation
U.S. Department 262.000 242,000 504,000
of AgrIculture
Bureau of
Land 38,000 13,000 51,000
Management
TOTAL 721.000 756,000 1,477,000

Salinity concentrations at the three stations on the Lower Colorado River in 1997 were:

"'.-

Station

Salinity
Concentration I
in mgIL

Below Hoover Dam
Below Parker Dam
At Imperial Dam

588
609
713

Based on the data available, the Forum concludes that the measured salinity will not exc_eed
the numeric criteria during the next three years. The plan of implementation adopted herein by the
Forum provides for the control of about 1.477 million tons of salt load reduction annually by the year
2015.

Should more water development projects be completed than are projected to occur before
salinity control measures are identified or brought on line, temporary increases above the numeric
criteria could result. However, these increases wiII be deemed in conformance with the standards
if appropriate salinity control measures are included in the plan.

Increases above the criteria as a result of below normal annual river flows and/or low
reservoir storage conditions will also be considered in conformance with the standards, provided that

IFlow-weighted data based on 1997 provisional records.

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