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Regulation 61-68, Water Classifications and Standards
Section A. Purpose and Scope
Section B. Definitions
Section C. Applicability of Standards
Section D. Antidegradation Rules
Section E. General Rules and Standards Applicable to All Waters
Section F. Narrative Biological Criteria
Section G. Class Descriptions, Designations, and Specific Standards for Surface Waters
- Outstanding National Resource Waters
- Outstanding Resource Waters
- Trout Waters
- Freshwaters
- Shellfish Harvesting Waters
- Class SA
- Class SB
Section H. Class Descriptions and Specific Standards for Ground Waters
Section I. Severability
Appendix. Water Quality Numeric Criteria for the Protection of Aquatic Life and Human Health
- Priority Toxic Pollutants
- Non Priority Pollutants
- Organoleptic Effects
- Water Quality Criteria Additional Notes
- Attachment 1 – Conversion Factors for Dissolved Metals
- Attachment 2 – Parameters for Calculating Hardness-Dependent Criteria
- Attachment 3 – Calculation of Freshwater Ammonia Criterion
- Attachment 4 – Calculation of the Sample Specific Freshwater Acute and Chronic Criterion for Metals