Virginia · Regulations
Chapter 260 — Water Quality Standards
49 sections
49 sections
- 9VAC25-260-59VAC25-260-5. Definitions
- 9VAC25-260-109VAC25-260-10. Designation of uses
- 9VAC25-260-209VAC25-260-20. General criteria
- 9VAC25-260-309VAC25-260-30. Antidegradation policy
- 9VAC25-260-409VAC25-260-40. Stream flow
- 9VAC25-260-509VAC25-260-50. Numerical criteria for dissolved oxygen, pH, and maximum temperature***
- 9VAC25-260-609VAC25-260-60. Rise above natural temperature
- 9VAC25-260-709VAC25-260-70. Maximum hourly temperature change
- 9VAC25-260-809VAC25-260-80. Thermal discharges into lakes and impoundments
- 9VAC25-260-909VAC25-260-90. Thermal variances
- 9VAC25-260-1009VAC25-260-100. [Deleted]
- 9VAC25-260-1109VAC25-260-110. Halogen ban
- 9VAC25-260-1409VAC25-260-140. Criteria for surface water
- 9VAC25-260-1559VAC25-260-155. Ammonia surface water quality criteria
- 9VAC25-260-1609VAC25-260-160. Fecal coliform bacteria; shellfish waters
- 9VAC25-260-1709VAC25-260-170. Bacteria; other recreational waters
- 9VAC25-260-1809VAC25-260-180. [Deleted]
- 9VAC25-260-1859VAC25-260-185. Criteria to protect designated uses from the impacts of nutrients and suspended sediment in the Chesapeake Bay and its tidal tributaries
- 9VAC25-260-1869VAC25-260-186. Virginia Pollutant Discharge Elimination System permits and schedules of compliance
- 9VAC25-260-1879VAC25-260-187. Criteria for man-made lakes and reservoirs to protect aquatic life and recreational designated uses from the impacts of nutrients
- 9VAC25-260-2509VAC25-260-250. Procedural requirements for variances due to natural conditions, temperature and §316(a) thermal variances
- 9VAC25-260-2609VAC25-260-260. Modification, amendment, and cancellation of standards
- 9VAC25-260-2709VAC25-260-270. Shellfish buffer zones; public hearing
- 9VAC25-260-2759VAC25-260-275. Protection of Eastern Shore tidal waters for clams and oysters
- 9VAC25-260-2809VAC25-260-280. Analytical procedures
- 9VAC25-260-3009VAC25-260-300. Classification of tributary streams
- 9VAC25-260-3109VAC25-260-310. Special standards and requirements
- 9VAC25-260-3309VAC25-260-330. Purpose
- 9VAC25-260-3509VAC25-260-350. Designation of nutrient enriched waters
- 9VAC25-260-3609VAC25-260-360. Section number and description columns
- 9VAC25-260-3709VAC25-260-370. Classification column
- 9VAC25-260-3809VAC25-260-380. Special standards column
- 9VAC25-260-3909VAC25-260-390. Potomac River Basin (Potomac River Subbasin)
- 9VAC25-260-4009VAC25-260-400. Potomac River Basin (Shenandoah River Subbasin)
- 9VAC25-260-4109VAC25-260-410. James River Basin (Lower)
- 9VAC25-260-4159VAC25-260-415. James River Basin (Lower) (Appomattox River Subbasin)
- 9VAC25-260-4209VAC25-260-420. James River Basin (Middle)
- 9VAC25-260-4309VAC25-260-430. James River Basin (Upper)
- 9VAC25-260-4409VAC25-260-440. Rappahannock River Basin
- 9VAC25-260-4509VAC25-260-450. Roanoke River Basin
- 9VAC25-260-4609VAC25-260-460. Yadkin River Basin
- 9VAC25-260-4709VAC25-260-470. Chowan and Dismal Swamp (Chowan River Subbasin)
- 9VAC25-260-4809VAC25-260-480. Chowan and Dismal Swamp (Albemarle Sound Subbasin)
- 9VAC25-260-4909VAC25-260-490. Tennessee and Big Sandy River Basins (Big Sandy River Subbasin)
- 9VAC25-260-5009VAC25-260-500. Tennessee and Big Sandy River Basins (Clinch River Subbasin)
- 9VAC25-260-5109VAC25-260-510. Tennessee and Big Sandy River Basins (Holston River Subbasin)
- 9VAC25-260-5209VAC25-260-520. Chesapeake Bay, Atlantic Ocean and small coastal basins
- 9VAC25-260-5309VAC25-260-530. York River Basin
- 9VAC25-260-5409VAC25-260-540. New River Basin