Core Competencies for Virginia Wastewater Operators

 

If there is an "X" in the column for the class license you are studying for, it is on the licensing test as well.

 

Click on the links below to learn more information on the particular topic.

 

Monitor, Evaluate and Adjust Treatment Processes
Class
Class 4
Class 3
Class 2
Class 1

Preliminary Treatment

     Screening
X
X
X
X
     Comminution
X
X
X
X
     Grit Removal
X
X
X
X
     Flow equalization
X
X
X
X
Primary Treatment
     Clarifiers
X
X
X
X
     Odor control
X
X
X
X
Secondary Treatment
     Fixed-film reactors (trickling filters, RBCs)
X
X
X
X
     Activated sludge
X
X
X
X
     Stabilization ponds without aeration
X
X
X
X
     Stabilization ponds with aeration
X
X
X
X
Advanced (Tertiary) Treatment
     Polishing ponds
X
X
X
X
     Chemical/physical advanced waste treatment without secondary
X
X
X
     Chemical/physical advanced waste treatment following secondary
X
X
X
     Biological or chemical/biological advanced waste treatment
X
X
X
X
     Nitrification by designed extended aeration only
X
X
X
     Ion exchange for advanced waste treatment
X
X
X
     Reverse osmosis, electrodialysis and other membrane filtration
X
X
X
     Media filtration
X
X
X
Chemical Addition
     Add dry chemicals
X
X
X
X
     Add gaseous chemicals
X
X
X
     Add liquid chemicals
X
X
X
X
Disinfection
     Dechlorination
X
X
X
X
     Gas chlorination
X
X
X
     Hypochlorination
X
X
X
X
     Ultraviolet irradiation
X
X
X
X
Effluent discharge and reuse
X
X
X
X
Solids Handling
     Conditioning
X
X
X
X
     Dewatering
X
X
X
X
     Stabilization
X
X
X
X
     Thickening
X
X
X
     Volume reduction
X
X
X
X

 

Required capabilities: