100+ Free WY Water/Wastewater Operator Practice Questions
Pass your Wyoming Water/Wastewater Operator Certification Exam exam on the first try — instant access, no signup required.
Loading questions...
Key Facts: WY Water/Wastewater Operator Exam
4 Categories
Water/WW Treatment + Dist/Coll
WY DEQ
Levels 1–4
Treatment Certification
WY DEQ
Levels 1–2
Distribution/Collection
WY DEQ
70%
Passing Score
WY DEQ
30 days
Retake Wait Period
WY DEQ
PSI/AMP
Exam Administrator
WY DEQ
About the WY Water/Wastewater Operator Exam
Wyoming DEQ certifies water treatment operators (Levels 1–4), wastewater treatment operators (Levels 1–4), distribution system operators (Levels 1–2), and collection system operators (Levels 1–2). Exams are by appointment at PSI/AMP centers with a 70% passing score.
Questions
100 scored questions
Time Limit
Varies by class level
Passing Score
70%
Exam Fee
Varies; PSI/AMP Assessment Centers (Wyoming Department of Environmental Quality (DEQ))
WY Water/Wastewater Operator Exam Content Outline
State Laws & Licensing
WY DEQ certification, treatment Levels 1–4, distribution/collection Levels 1–2, PSI/AMP exams, and 30-day retake rule
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 WY Water/Wastewater Operator Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: Varies by class level
- Exam fee: Varies; PSI/AMP Assessment Centers
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
WY Water/Wastewater Operator Study Tips from Top Performers
Frequently Asked Questions
How many certification categories does Wyoming have?
Four: water treatment (Levels 1–4), wastewater treatment (Levels 1–4), distribution systems (Levels 1–2), and collection systems (Levels 1–2).
Where can I take the Wyoming operator exam?
At PSI/AMP Assessment Centers by appointment (Mon–Fri, 9 AM or 1:30 PM) in Casper, Cheyenne, Green River, and neighboring state locations.
What happens after I pass the exam?
Log into your Operator Certification account and verify you meet experience, training, and HSE requirements. Certification is not automatic.
How long must I wait to retake a failed exam?
At least 30 days before retaking the same exam.