Virginia
Virginia Department of Environmental Quality
DEQ Water Division
VA Pollutant Discharge Elimination System Permit Program
PO Box 1105
Richmond, VA 23218
DEQ Water Division
VA Pollutant Discharge Elimination System Permit Program
PO Box 1105
Richmond, VA 23218
2014 VPDES Industrial Stormwater General Permit Regulation [9 VAC 25-151] (VAR 05), effective 7-1-2014 through 6-30-2019
Grab samples are to be collected from the discharge resulting from a storm event that results in an actual discharge from the site (defined as a "measurable" storm event), providing the interval from the preceding measurable storm event is at least 72 hours. The 72-hour storm interval is waived if the permittee can document that less than a 72-hour interval is representative for local storm events during the season when sampling is being conducted.
Magnitude: results in actual discharge
Interval Between Storms: at least 72 hours
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