Core Competencies for Virginia Water 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 & System    
Class
Class 6
Class 5
Class 4
Class 3
Class 2
Class 1
Source Water Treatment
Algae control
X
Pretreatment
X
X
Chemical Treatment/Addition
Chloramines
X
X
X
Chlorine dioxide disinfection
X
X
X
Chlorine disinfection
X
X
X
X
X
X
Corrosion control
X
X
X
X
Fluoridation
X
X
X
Ozone disinfection
X
pH adjustment
X
X
X
Coagulation and Flocculation
Chemical coagulants
X
X
X
Flocculation tanks
X
X
X
Rapid mix units
X
X
X
Clarification/Sedimentation
Dissolved air flotation
X
X
X
Inclined-plate sedimentation
X
X
X
Sedimentation basins
X
X
X
Tube sedimentation
X
X
X
Up-flow solids-contact clarification
X
X
X
Filtration
Calcite filters
X
X
X
X
X
X
Cartridge filters
X
X
Diatomaceous earth filters
X
X
X
Direct filtration
X
X
X
Gravity/rapid sand filtration
X
X
X
Membrane filtration (Ro, MF, UF, NF, ED)
X
X
X
X
Slow sand filters
X
X
X
X
Other Treatment Processes
Activated carbon adsorption
X
X
X
X
Aeration
X
X
X
X
Backwash aids
X
Coagulation aids
X
X
X
Ion exchange softening
X
X
X
X
Iron and manganese sequestration/removal
X
X
X
X
Lime-soda ash softening
X
X
X
Residuals Disposal
Discharge to lagoons
X
X
X
Discharge to lagoons and then surface water
X
X
X
System Inspection
Flow measurement
X
X
X
X
X
X
Leak detection
X
X
X
X
X
X
System flushing
X
X
X
X
X
X
Well inspection
X
X
X
X
X
X

 

Required capabilities:

  • Ability to adjust chemical feed rates
  • Knowledge of application of chemicals
  • Ability to adjust flow patterns
  • Knowledge of chemical handling and storage
  • Ability to calculate dosage rates
  • Knowledge of chemical properties
  • Ability to confirm chemical strength
  • Knowledge of drinking water regulations
  • Ability to diagnose/troubleshoot process units
  • Knowledge of general biology and chemistry
  • Ability to interpret Material Safety Data Sheets
  • Knowledge of general electrical principles
  • Ability to maintain processes in normal operating condition
  • Knowledge of hydraulic principles
  • Ability to measure chemical weight/volume
  • Knowledge of normal chemical range
  • Ability to monitor, evaluate and adjust process units
  • Knowledge of personal protective equipment
  • Ability to perform basic math
  • Knowledge of physical science
  • Ability to perform physical measurements
  • Knowledge of principles of distribution repair
  • Ability to perform process control calculations
  • Knowledge of water treatment concepts and processes
  • Ability to prepare chemicals
  • Knowledge of water treatment design parameters