Subchapter 1. General Provisions

SECTION 785:46-1-1. Purpose, scope and applicability

SECTION 785:46-1-2. Definitions

SECTION 785:46-1-3. Procedural and substantive authority

SECTION 785:46-1-4. Testing procedures

SECTION 785:46-1-5. Errors and separability

SECTION 785:46-1-6. Determination of regulatory low flow

Subchapter 3. Implementation of Narrative Toxics Criteria to Protect Aquatic Life Using Whole Effluent Toxicity (WET) Testing

SECTION 785:46-3-1. Applicability and scope

SECTION 785:46-3-2. Dilutions for whole effluent toxicity testing

SECTION 785:46-3-3. Sampling for whole effluent toxicity testing

SECTION 785:46-3-4. Toxicity reduction evaluation [revoked]

SECTION 785:46-3-5. Reasonable potential to exceed narrative toxicity criterion for Fish and Wildlife Propagation

SECTION 785:46-3-6. Regulatory flow determination

Subchapter 5. Implementation of Numerical Criteria to Protect Fish and Wildlife From Toxicity Due to Conservative Substances

SECTION 785:46-5-1. Applicability and scope

SECTION 785:46-5-2. Regulatory flow determination

SECTION 785:46-5-3. Reasonable potential

SECTION 785:46-5-4. Wasteload allocations [revoked]

SECTION 785:46-5-5. Long term average to protect against chronic toxicity [revoked]

SECTION 785:46-5-6. Long term average to protect against acute toxicity [revoked]

SECTION 785:46-5-7. Obtaining permit limits from long term averages [revoked]

SECTION 785:46-5-8. pH and hardness dependent toxicity

SECTION 785:46-5-9. Consideration of background concentration [revoked]

Subchapter 7. Implementation of Numerical Criteria to Protect Human Health From Toxicity Due to Conservative Substances

SECTION 785:46-7-1. Applicability and scope

SECTION 785:46-7-2. Determination and use of regulatory flow

SECTION 785:46-7-3. Reasonable potential

SECTION 785:46-7-4. Performance of wasteload allocation; implementation into permitting [revoked]

Subchapter 9. Implementation of Criteria to Protect the Agriculture Beneficial Use

SECTION 785:46-9-1. Applicability and scope

SECTION 785:46-9-2. Applicable mineral criteria

SECTION 785:46-9-3. Regulatory flows

SECTION 785:46-9-4. Background concentration [revoked]

SECTION 785:46-9-5. Reasonable potential

SECTION 785:46-9-6. Wasteload allocations [revoked]

SECTION 785:46-9-7. Long term average [revoked]

SECTION 785:46-9-8. Obtaining permit limits from long term averages [revoked]

Subchapter 11. Implementation of Temperature Criteria to Protect Fish and Wildlife Propagation

SECTION 785:46-11-1. Applicability and scope

SECTION 785:46-11-2. Applicable temperatures

SECTION 785:46-11-3. Regulatory flows

SECTION 785:46-11-4. Permitting strategy to protect temperature criteria [revoked]

SECTION 785:46-11-5. Reasonable potential

SECTION 785:46-11-6. Reasonable potential equations

SECTION 785:46-11-7. Wasteload allocation [revoked]

Subchapter 13. Implementation of Antidegradation Policy

SECTION 785:46-13-1. Applicability and Scope

SECTION 785:46-13-2. Definitions

SECTION 785:46-13-3. Tier 1 protection; attainment or maintenance of an existing or designated beneficial use

SECTION 785:46-13-4. Tier 2 protection; maintenance and protection of Sensitive Water Suppy-Reuse and other Tier 2 waterbodies

SECTION 785:46-13-5. Tier 2.5 protection; maintenance and protection of high quality waters, sensitive water supplies, and other tier 2.5 waterbodies

SECTION 785:46-13-6. Tier 3 protection; prohibition against degradation of water quality in outstanding resource waters

SECTION 785:46-13-7. Protection for Appendix B areas

SECTION 785:46-13-8. Antidegradation review in surface waters

Subchapter 15. Use Support Assessment Protocols

SECTION 785:46-15-1. Scope and applicability

SECTION 785:46-15-2. Definitions

SECTION 785:46-15-3. Data requirements

SECTION 785:46-15-4. Default protocols

SECTION 785:46-15-5. Assessment of Fish and Wildlife Propagation support

SECTION 785:46-15-6. Assessment of Primary Body Contact Recreation support

SECTION 785:46-15-7. Assessment of Public and Private Water Supply support

SECTION 785:46-15-8. Assessment of Agriculture support

SECTION 785:46-15-9. Assessment of Fish Consumption support

SECTION 785:46-15-10. Nutrients

SECTION 785:46-15-11. Assessment of Hydroelectric Power Generation support [revoked]

SECTION 785:46-15-12. Assessment of Industrial and Municipal Process and Cooling Water support [revoked]

SECTION 785:46-15-13. Assessment of Navigation support [revoked]

SECTION 785:46-15-13.1. Assessment of Navigation support

SECTION 785:46-15-14. Assessment of Aesthetics support

Subchapter 17. OWRB Water Quality Standards Implementation Plan

SECTION 785:46-17-1. Purpose and scope

SECTION 785:46-17-2. Definitions

SECTION 785:46-17-3. Processes to ensure compliance with antidegradation standards and leading to maintenance of, removal of threats to, and restoration of beneficial uses

SECTION 785:46-17-4. Procedures to be utilized in application of USAP

SECTION 785:46-17-5. List and description of programs affecting water quality

SECTION 785:46-17-6. Technical information and procedures to implement Plan

SECTION 785:46-17-7. Plan integration into water quality management activities

SECTION 785:46-17-8. Compliance with other agencies' mandatory statewide requirements

SECTION 785:46-17-9. Summary of written comments received

SECTION 785:46-17-10. Evaluation of effectiveness

Subchapter 19. Implementation of Dissolved Oxygen Criteria to Protect Fish and Wildlife Propagation

SECTION 785:46-19-1. Applicability and scope

SECTION 785:46-19-2. Regulatory flows

SECTION 785:46-19-3. Reasonable potential determination

Appendix A. Dilutions for Chronic Toxicity Testing [revoked]

Appendix B. Mean Hardness and PH by Stream Segment

Appendix C. Index of Biological Integrity

Appendix D. Summary of Comments on OWRB's Water Quality Standards Implementation Plan