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Virginia Administrative Code

Part IV

Reports and Forms

310Design factors.320Design details.330Construction details.340Vacuum sewage system.350Manholes.360Water quality and public health and welfare protection.370System access.380Sewage pumping.390Reliability.400Pumping equipment.410Portable equipment and diversions.420Alarm systems.430Alternatives.440Force mains.450Treatment works design.460Standards.470Treatment works details.480Treatment works outfalls.490Reliability protection.500Screening.510Grit removal facilities.520Pre-aeration.530Clarifiers.540Sludge stabilization.550Anaerobic digestion.560Aerobic sludge digestion.570Composting.580Heat treatment.590Chemical treatment.600Sludge thickening.610Sludge dewatering.620Sludge drying beds.630Filtration.640Centrifuges.650Sludge pumping.660Sludge management.670Attached growth processes.680Rotating biological contactors.690Suspended growth (activated sludge) process.700Oxidation ditches.710Sequencing batch reactors (SBR).720Sewage stabilization ponds and aerated lagoons.730Aerated lagoons.740Disinfection.750Chlorination.760Bromochlorination.770Ultraviolet light irradiation (UV).780Ozonation.790Other disinfection methods.800Dechlorination.810Polishing ponds.820Postaeration.830Flow equalization.840Chemical treatment.850Chemical clarification.860Filtration.870Conventional alternatives.880Land treatment.890Constructed wetlands.900Nutrient reduction.910Biological nitrification.920Ammonia stripping.930Ion exchange.940Preliminary Engineering Report.950Contents for an operation and maintenance manual.960Influent and effluent sampling.970Operational testing and control.980Factors for oxygen transfer.985Onsite sewage systems connected to sewerage systems.990Portable equipment for sewage pump stations.1000General jurisdictional responsibilities for sewerage systems connections.9998Forms (9Vac25-790).9999Documents Incorporated by Reference (9Vac25-790).