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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 120. Virginia Pollutant Discharge Elimination System (VPDES) General Permit Regulation for Discharges from Groundwater Remediation of Contaminated Sites, Dewatering Activities of Contaminated Sites, and Hydrostatic Tests
11/23/2024

9VAC25-120-20. Purpose.

This general permit regulation governs the discharge of wastewaters from petroleum contaminated sites, non-petroleum contaminated sites, groundwater remediation discharges, dewatering activities, the hydrostatic testing of natural gas storage tanks and pipelines, the hydrostatic testing and dewatering of petroleum storage tank systems and associated distribution equipment, and the hydrostatic testing of water storage tanks and pipelines. These wastewaters may be discharged from the following activities: excavation dewatering, conducting aquifer tests to characterize site conditions, pumping contaminated groundwater to remove free product, discharges resulting from another petroleum product, chlorinated hydrocarbon solvent, metals or other contaminated site cleanup, hydrostatic tests of natural gas and petroleum storage tanks or pipelines, hydrostatic tests and dewatering of storage tanks and associated distribution equipment, and hydrostatic tests of water storage tank systems or pipelines. Discharges not associated with petroleum-contaminated water, water contaminated by chlorinated hydrocarbon solvents, or hydrostatic tests are not covered under this general permit.

Statutory Authority

§ 62.1-44.15 of the Code of Virginia; § 402 of the Clean Water Act; 40 CFR Parts 122, 123, and 124.

Historical Notes

Derived from VR680-14-11 § 2, eff. February 24, 1993; amended, Virginia Register Volume 14, Issue 9, eff. February 24, 1998; Volume 19, Issue 10, eff. February 26, 2003; Volume 24, Issue 9, eff. February 6, 2008; Volume 29, Issue 4, eff. February 26, 2013; Volume 34, Issue 10, eff. February 26, 2018; Volume 39, Issue 5, eff. March 1, 2023.

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