4VAC25-31-490. Water quality.
The pH of all water discharge resulting from the mining of minerals shall be between pH 6.0 and pH 9.0 unless otherwise approved by the director. In addition, discharges shall be in compliance with applicable standards established by the Department of Environmental Quality (9VAC25-260-20).
Statutory Authority
§§ 45.1-161.3 and 45.1-180.3 of the Code of Virginia.
Historical Notes
Derived from Virginia Register Volume 19, Issue 24, eff. September 11, 2003; amended, Virginia Register Volume 30, Issue 6, eff. December 19, 2013.
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