WSP07972

• File Number: 8272.100.60
• Description: Colorado River Basin Salinity Control Forum
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 10/1/1993
• Author: CRBSCF
• Title: 1993 Review - Water Quality Standards for Salinity - Colorado River System
• Water Supply Pro - Doc Type: Report/Study

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TABLES

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Salinity Control Plan of Implementation

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1.1 Summary of Program Funding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-3
2.1 Observed Flow-weighted Average Annual Salinity Concentrations at the Numeric

Criteria Stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-6
2.2 Comparison of Salinity Levels to the Numeric Criteria for the Existing (1991)
Level of Development and Salinity Control . . . . . . . . . . . . . . . . . . . . . .. 2-9
2.3 Summary of Projected Water Depletions in the Colorado River Basin . . . . . .. 2-9
2.4 Colorado River Salinity Projections, 2015 . . . . . . . . . . . . . . . . . . . . . . . . 2-14
4.1 Salinity Control Plan of Implementation - Federal Programs . . . . . . . . . . .. 4-2

FIGURES

. Map of Colorado River Basin ................................ ii

2.1 Map of Colorado River Quality of Water Monitoring Stations. . . . . . . . . . .. 2-3
2.2 Salinity at Imperial Dam .................................. 2-5
2.3 Salinity Damage Curve ................................... 2-7
2.4 Projected Salinity Concentrations below Hoover Dam . . . . . . . . . . . . . . . . . 2-11
2.5 Projected Salinity Concentrations below Parker Dam ................. 2-12
2.6 Projected Salinity Concentrations at Imperial Dam . . . . . . . . . . . . . . . . . . . 2-13
2.7 AdjustedSalinitybelowHooverDam.......................... 2-15
2.8 Adjusted Salinity below Parker Dam . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.9 Adjusted Salinity at Imperial Dam ............................ 2-17
4.1 Colorado River Basin Salinity Control Units ...................... 4-3

APPENDICES

A. Forum letter to EPA Regional Administrators, Regions vm and IX,
dated February 26, 1990; and EPA Regulation 40 CPR, Part 120 ......... A-I

B. Forum Policies ........................................ B-1

C. NPDES Permits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-l
D. Public Advice and Comment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-l

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