Chapter 260 - WATER QUALITY STANDARDS
- Part I - Surface Water Standards with General, Statewide Application (§ 9VAC25-260-5 to 9VAC25-260-155)
- Part II - Standards with More Specific Application (§ 9VAC25-260-160 to 9VAC25-260-187)
- Part III - Deleted
- Part IV - Groundwater Standards [Repealed] (§ 9VAC25-260-190 to 9VAC25-260-220)
- Part V - Water Quality Criteria for Groundwater [Repealed] (§ 9VAC25-260-230 to 9VAC25-260-240)
- Part VI - Procedural Requirements (§ 9VAC25-260-250 to 9VAC25-260-300)
- Part VII - Special Standards and Scenic Rivers Listings (§ 9VAC25-260-310 to 9VAC25-260-320)
- Part VIII - Nutrient Enriched Waters (§ 9VAC25-260-330 to 9VAC25-260-350)
- Part IX - River Basin Section Tables (§ 9VAC25-260-360)
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
- Part I - Surface Water Standards with General, Statewide Application (§ 9VAC25-260-5 to 9VAC25-260-155)
- Part II - Standards with More Specific Application (§ 9VAC25-260-160 to 9VAC25-260-187)
- Part III - Deleted
- Part IV - Groundwater Standards [Repealed] (§ 9VAC25-260-190 to 9VAC25-260-220)
- Part V - Water Quality Criteria for Groundwater [Repealed] (§ 9VAC25-260-230 to 9VAC25-260-240)
- Part VI - Procedural Requirements (§ 9VAC25-260-250 to 9VAC25-260-300)
- Part VII - Special Standards and Scenic Rivers Listings (§ 9VAC25-260-310 to 9VAC25-260-320)
- Part VIII - Nutrient Enriched Waters (§ 9VAC25-260-330 to 9VAC25-260-350)
- Part IX - River Basin Section Tables (§ 9VAC25-260-360)