WSP01139

• File Number: 8272.100.60
• Description: Colorado River Basin Salinity Control Forum
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1996
• Author: CRBSCF
• Title: 1996 Review - Water Quality Standards for Salinity - Colorado River System
• Water Supply Pro - Doc Type: Report/Study

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For this Review, Reclamation utilized this adjusted data to evaluate whether current salinity
control efforts are sufficient to meet the numeric criteria of the salinity standards under the current
level of water development in the basin. Table 2-3 compares the numeric criteria with the
observed data and adjusted salinity levels at the three Lower Basin monitoring stations. The
adjusted values are higher than the observed salinities because they represent the full impact of
existing water development when in fact the full impact of existing development have not yet
made their way through the hydrologic system. ,

Table 2-3
Comparison of Salinity Levels to the Numeric Criteria
for the Existing (1995) Level of Water Development and Salinity Control

Station Numeric Adjusted Observed
Criteria SalinitylO Salinityll
(ml!/L) (ml!/L) (ml!/L)
Colorado River below 723 756 654
Hoover Dam
Colorado River below 747 775 661
Parker Dam
Colorado River at Imperial 879 882 787
Dam

"'Reflects salinity that would occur from long-term mean waler supply as computed by CRSS,

"Data based on provisional records,

2-8