Water quality standards and biological program guidance
The guidance documents listed below are in PDF format.
Guidance Number | Subject | Date |
|---|---|---|
| 04-2021 | Guidance for Exceptional State Waters Designations in Antidegradation Policy Section of Virginia Water Quality Standards Regulation (9 VAC 25-260-30.A.3) |
11/15/04 |
| 02-2002 | Fish Kill Guidance Manual Second Edition |
03/04/02 |
| WQS-5 | Guidance of Application of Public Water Supply Designations |
11/04/94 |
| WQS-4 | Interpretation of the Water Quality Standard for Cyanide |
11/02/94 |
| WQS-3 | Interpretation of Fecal Coliform Bacteria and Mixing Zones |
04/20/93 |
| WQS-2 | Water Quality Standards Interpretation of Biologically Based Flows, Low Flow Application and Mixing Zones |
11/02/92 |
| WQS-1 | New Standards - Interpretations |
02/24/92 |