Virginia Administrative Code
Title 9 - ENVIRONMENT
Agency 25 - STATE WATER CONTROL BOARD
Chapter 260 - WATER QUALITY STANDARDS
Part I - Surface Water Standards with General, Statewide Application
Section 9VAC25-260-70 - Maximum hourly temperature change
Universal Citation: 9 VA Admin Code 25-260-70
Current through Register Vol. 41, No. 3, September 23, 2024
The maximum hourly temperature change shall not exceed 2°C, except in the case of Class VI waters (natural trout waters) where it shall not exceed 0.5°C. These criteria shall apply beyond the boundaries of mixing zones and are in addition to temperature changes caused by natural conditions.
Statutory Authority
§ 62.1-44.15(3a) of the Code of Virginia.
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