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Virginia Administrative Code (Last Updated: January 10, 2017) |
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Title 18. Professional and Occupational Licensing |
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Agency 160. Board for Waterworks and Wastewater Works Operators and Onsite Sewage System Professionals |
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Chapter 20. Board for Waterworks and Wastewater Works Operators and Onsite Sewage Systemprofessionals Regulations |
Section 130. Wastewater works
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A. A Class 4 wastewater works licensee may operate any wastewater works as follows:
1. A wastewater works employing natural treatment methods (i.e., those not utilizing aerated or mixed flows and not using electrical or outside energy sources to accomplish treatment) with a design hydraulic capacity greater than 0.04 MGD but equal to or less than 1.0 MGD; or
2. A wastewater works classified by the Virginia Department of Health or the Virginia Department of Environmental Quality as a Class 4 wastewater works.
B. A Class 3 wastewater works licensee may operate any wastewater works as follows:
1. A wastewater works using biological treatment methods consisting of but not limited to (i) suspended growth reactors, (ii) aerated lagoons, (iii) constructed wetlands, (iv) biological filters or other attached growth contactors, (v) processes utilizing biological nutrient control, or (vi) processes utilizing land application having a design hydraulic capacity greater than 0.04 MGD, but equal to or less than 0.5 MGD;
2. A wastewater works using advanced waste treatment methods consisting of but not limited to (i) ammonia stripping, (ii) breakpoint chlorination, (iii) carbon adsorption, (iv) chemical coagulation, (v) flocculation, (vi) precipitation, (vii) filtration, or (viii) demineralization (ion exchange, reverse osmosis or electrodialysis) having a design hydraulic capacity greater than 0.04 MGD, but equal to or less than 0.5 MGD;
3. A wastewater works using combinations of biological and advanced waste treatment methods having a design hydraulic capacity greater than 0.04 MGD, but equal to or less than 0.1 MGD;
4. A wastewater works using natural treatment methods (i.e., those not using aerated or mixed flows and not using electrical or outside energy sources to accomplish treatment) with a design hydraulic capacity greater than 1.0 MGD; or
5. A wastewater works classified by the Virginia Department of Health or the Virginia Department of Environmental Quality as either a Class 3 or 4 wastewater works.
C. A Class 2 wastewater works licensee may operate any wastewater works as follows:
1. A wastewater works using biological treatment methods consisting of but not limited to (i) suspended growth reactors, (ii) aerated lagoons, (iii) constructed wetlands, (iv) biological filters or other attached growth contactors, (v) processes utilizing biological nutrient control, or (vi) processes utilizing land application having a design hydraulic capacity greater than 0.5 MGD, but equal to or less than 5.0 MGD;
2. A wastewater works using advanced waste treatment methods consisting of but not limited to (i) ammonia stripping, (ii) breakpoint chlorination, (iii) carbon adsorption, (iv) chemical coagulation, (v) flocculation, (vi) precipitation, (vii) filtration, or (viii) demineralization (ion exchange, reverse osmosis or electrodialysis) having a design hydraulic capacity greater than 0.5 MGD, but equal to or less than 5.0 MGD;
3. A wastewater works using combinations of biological and advanced waste treatment methods, having a design hydraulic capacity greater than 0.1 MGD, but equal to or less than 2.5 MGD; or
4. A wastewater works classified by the Virginia Department of Health or the Virginia Department of Environmental Quality as a Class 2, 3, or 4 wastewater works.
D. A Class 1 wastewater works licensee may operate any wastewater works as follows:
1. A wastewater works using biological treatment methods consisting of, but not limited to (i) suspended growth reactors, (ii) aerated lagoons, (iii) constructed wetlands, (iv) biological filters or other attached growth contactors, (v) processes utilizing biological nutrient control, or (vi) processes utilizing land application having a design hydraulic capacity greater than 5.0 MGD;
2. A wastewater works using advanced waste treatment methods consisting of, but not limited to (i) ammonia stripping, (ii) breakpoint chlorination, (iii) carbon adsorption, (iv) chemical coagulation, (v) flocculation, (vi) precipitation, (vii) filtration, or (viii) demineralization (ion exchange, reverse osmosis or electrodialysis) having a design hydraulic capacity greater than 5.0 MGD;
3. A wastewater works using combinations of biological and advanced waste treatment methods, having a design hydraulic capacity greater than 2.5 MGD; or
4. A wastewater works classified by the Virginia Department of Health or the Virginia Department of Environmental Quality as a Class 1, 2, 3, or 4 wastewater works.
Historical Notes
Derived from Volume 17, Issue 09, eff. February 15, 2001; amended, Virginia Register Volume 26, Issue 06, eff. January 1, 2010.