Administrative Code

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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
1/29/2020

Chapter 260. Water Quality StandardsRead Chapter

Section 5
Definitions
Section 10
Designation of uses
Section 20
General criteria
Section 30
Antidegradation policy
Section 40
Stream flow
Section 50
Numerical criteria for dissolved oxygen, pH, and maximum temperature***
Section 55
[Repealed]
Section 60
Rise above natural temperature
Section 70
Maximum hourly temperature change
Section 80
Thermal discharges into lakes and impoundments
Section 90
Thermal variances
Section 100
[Deleted]
Section 110
Halogen ban
Section 120
[Repealed]
Section 140
Criteria for surface water
Section 150
[Repealed]
Section 155
Ammonia surface water quality criteria
Section 160
Fecal coliform bacteria; shellfish waters
Section 170
Bacteria; other recreational waters
Section 180
[Deleted]
Section 185
Criteria to protect designated uses from the impacts of nutrients and suspended sediment in the Chesapeake Bay and its tidal tributaries
Section 186
Virginia Pollutant Discharge Elimination System permits and schedules of compliance
Section 187
Criteria for man-made lakes and reservoirs to protect aquatic life and recreational designated uses from the impacts of nutrients
Section 190
[Repealed]
Section 230
[Repealed]
Section 250
Procedural requirements for variances due to natural conditions, temperature and §316(a) thermal variances
Section 260
Modification, amendment, and cancellation of standards
Section 270
Shellfish buffer zones; public hearing
Section 275
Protection of Eastern Shore tidal waters for clams and oysters
Section 280
Analytical procedures
Section 290
[Repealed]
Section 300
Classification of tributary streams
Section 310
Special standards and requirements
Section 320
[Repealed]
Section 330
Purpose
Section 340
[Repealed]
Section 350
Designation of nutrient enriched waters
Section 360
Section number and description columns
Section 370
Classification column
Section 380
Special standards column
Section 390
Potomac River Basin (Potomac River Subbasin)
Section 400
Potomac River Basin (Shenandoah River Subbasin)
Section 410
James River Basin (Lower)
Section 415
James River Basin (Lower) (Appomattox River Subbasin)
Section 420
James River Basin (Middle)
Section 430
James River Basin (Upper)
Section 440
Rappahannock River Basin
Section 450
Roanoke River Basin
Section 460
Yadkin River Basin
Section 470
Chowan and Dismal Swamp (Chowan River Subbasin)
Section 480
Chowan and Dismal Swamp (Albemarle Sound Subbasin)
Section 490
Tennessee and Big Sandy River Basins (Big Sandy River Subbasin)
Section 500
Tennessee and Big Sandy River Basins (Clinch River Subbasin)
Section 510
Tennessee and Big Sandy River Basins (Holston River Subbasin)
Section 520
Chesapeake Bay, Atlantic Ocean and small coastal basins
Section 530
York River Basin
Section 540
New River Basin
Section 550
Designations of authority
FORMS
FORMS (9VAC25-260)
DIBR
DOCUMENTS INCORPORATED BY REFERENCE (9VAC25-260)

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