Part I - Surface Water Standards with General, Statewide Application
- Section 9VAC25-260-5 - Definitions
- Section 9VAC25-260-10 - Designation of uses
- Section 9VAC25-260-20 - General criteria
- Section 9VAC25-260-30 - Antidegradation policy
- Section 9VAC25-260-40 - Stream flow
- Section 9VAC25-260-50 - Numerical criteria for dissolved oxygen, pH, and maximum temperature
- Section 9VAC25-260-55 - [Repealed]
- Section 9VAC25-260-60 - Rise above natural temperature
- Section 9VAC25-260-70 - Maximum hourly temperature change
- Section 9VAC25-260-80 - Thermal discharges into lakes and impoundments
- Section 9VAC25-260-90 - Thermal variances
- Section 9VAC25-260-100 - Deleted
- Section 9VAC25-260-110 - Halogen ban
- Section 9VAC25-260-120 to 9VAC25-260-130 - [Repealed]
- Section 9VAC25-260-140 - Criteria for surface water
- Section 9VAC25-260-150 - [Repealed]
- Section 9VAC25-260-155 - Ammonia surface water quality criteria