100+ Free WV Water/Wastewater Operator Practice Questions
Pass your West Virginia Water/Wastewater Operator Certification Exam exam on the first try — instant access, no signup required.
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Key Facts: WV Water/Wastewater Operator Exam
70%
Passing Score
WV DHHR
60 days
Retake Wait Period
WV DHHR
12 dates
Annual Exam Sessions
WV DHHR
2 years
Renewal Cycle
WV DHHR
Class I–IV
Water Operator Levels
WV DHHR
(304) 356-4335
DHHR Contact
WV OEHS
About the WV Water/Wastewater Operator Exam
West Virginia DHHR certifies water operators (Class 1D, R, WDS, I–IV) and wastewater operators (Class I–IV). Exams are administered twice yearly per district with 12 total dates statewide. The passing score is 70% with a 60-day retake waiting period.
Questions
100 scored questions
Time Limit
Varies by class level
Passing Score
70%
Exam Fee
Contact DHHR at (304) 356-4335 (West Virginia DHHR, Office of Environmental Health Services)
WV Water/Wastewater Operator Exam Content Outline
State Laws & Licensing
WV DHHR certification, Class 1D through IV, exam schedule, 60-day retake rule, 2-year renewal, and CE requirements
Water Treatment
Coagulation, flocculation, sedimentation, filtration, disinfection, CT values, and source water protection
Wastewater Treatment
Activated sludge, BOD removal, sludge handling, nitrification/denitrification, and effluent disinfection
Distribution & Collection
Pump operations, hydraulics, cross-connection control, collection system maintenance, and I&I reduction
Laboratory & Safety
Water quality testing, sampling, math calculations, confined space, LOTO, and chemical safety
How to Pass the WV Water/Wastewater Operator Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: Varies by class level
- Exam fee: Contact DHHR at (304) 356-4335
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
WV Water/Wastewater Operator Study Tips from Top Performers
Frequently Asked Questions
How often are WV operator exams offered?
Twice a year per district plus additional central locations, totaling 12 exam dates across the state in 2026.
What is the passing score?
70% is required to pass. After failing, candidates must wait 60 days before retaking.
What water operator classifications does WV use?
Class 1D (distribution), Class R (restricted), WDS (water distribution system), and Class I–IV for increasing complexity.
How often is renewal required?
Every 2 years with required continuing education hours.