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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 790. Sewage Collection and Treatment Regulations
12/30/2024

9VAC25-790-540. Sludge stabilization.

Article 5
Sludge Processing and Management

The selection and operation of the sludge treatment or stabilization process shall be based on the ultimate utilization of the final sludge product. Land based management of treated sewage sludge may require the production of biosolids as described in the Virginia Pollution Abatement Permit Regulation (9VAC25-32) or Virginia Pollutant Discharge Elimination System Permit Regulation (9VAC25-31). The design requirements for the treatment and stabilization processes described in this chapter are based on the assumption that they must accomplish the necessary processing of sewage sludge at the treatment works. Consideration will be given to reducing design requirements, on a case-by-case basis, for treatment works employing series operation of two or more stabilization processes or methods in accordance with the means of sludge management. The standard buffer distance of 200 feet shall be provided between the walls of open and exposed sludge treatment operations and the boundaries of the site area in which either controlled use or access restrictions apply.

Statutory Authority

§ 62.1-44.15 of the Code of Virginia.

Historical Notes

Former 12VAC5-581-600 derived from Virginia Register Volume 18, Issue 10, eff. February 27, 2002; amended and adopted as 9VAC25-790-540, Virginia Register Volume 20, Issue 9, eff. February 12, 2004; amended, Virginia Register Volume 24, Issue 6, eff. January 1, 2008.

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