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Table of Contents
| Guidance for Water Quality-Based Decisions: |
| The TMDL Process |
CHAPTER 1 -- INTRODUCTION
Purpose and Summary
Policies and Priniciples
Clean Water Act Section 303(d)
Water Quality Planning and Management Regulation
CHAPTER 2 -- THE WATER QUALITY-BASED APPROACH TO POLLUTION CONTROL
Step One: Identification of Water Quality-Limited Waters
Step Two: Priority Ranking and Targeting
Step Three: TMDL Development1
Step Four: Implementation of Control Actions
Step Five: Assessment of Water Quality-Based Control Actions
CHAPTER 3 -- DEVELOPMENT AND IMPLEMENTATION OF THE TMDL
Development of the TMDL
The TMDL Objective
The TMDL Process
Selection of Approach
The Phased Approach
Approval of TMDLs by EPA
Implementation of the TMDL
NPDES Process for Point Sources
State or Local Process for Nonpoint Sources
Assessment of the TMDL
CHAPTER 4 -- EPA AND STATE RESPONSIBILITIES
EPA/State AgreementsState Responsibilities
Identification of Water Quality-Limited Waters Still Requiring TMDLs
Identification and Scheduling of Targeted Waterbodies
TMDL Development
Continuing Planning Process
Water Quality Management Plan
Public Notice and Participation
Reporting
Other Specific Responsibilities
EPA Responsibilities
Review of 303(d) lists
TMDL Review and Approval
Program Audits
Technical Assistance and Training
Guidance Documents and Reports
EPA Headquarters Responsibilities
EPA Regional Responsibilities
APPENDIX A -- RELATIONSHIP TO OTHER GUIDANCE
Monitoring Guidance
Cooperative Monitoring/Citizen Volunteer Monitoring Guidance
Wasteload Allocation Technical Guidance
Technical Support Document for Water Quality-Based Toxics Control
Permit Writers Guidance
Nonpoint Source Guidance
APPENDIX B -- SUPPORTING PROGRAMS
EPA Water Quality Criteria and Standards
Section 305(b) -- Water Quality Assessment
Section 304(l) -- Impaired Waters
Section 319 -- Nonpoint Source Program
Section 314 -- Clean Lakes Program
Section 320 -- National Estuary Program
Monitoring Program
Effluent Limitation Guidelines and Standards
NPDES Permits and Individual Control Strategies
Marine and Estuarine Waters
Groundwater
CERCLA
SARA
APPENDIX C -- SCREENING CATEGORIES
APPENDIX D -- SELECTED TECHNICAL CONSIDERATIONS
Design Conditions
Mathematical Models
Pollutant Allocation Schemes
Multiple Discharges
Allocation Tradeoffs
Persistent and/or Highly Bioaccumulative Toxic Pollutants
Use of Two-Number Criteria
Sediment Issues