Oregon Water/Wastewater Operator Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Oregon Water/Wastewater Operator Vocabulary Games
4 free word games built on 20 Oregon Water/Wastewater Operator terms across 8 topics. Every game deals terms at random and shows what each term means, so you can keep playing as long as you like.
How to Play
- 1.Read the clue and type the term (3 to 6 letters).
- 2.Green: right spot. Yellow: wrong spot. Gray: not in the term.
- 3.Solve it in 6 tries, then read the explanation.
- 1.Swap two neighboring tiles to line up 3 of the same term.
- 2.Longer lines, two lines at once and chains score more.
- 3.Play until no swap can make a line.
- 1.Flip two cards. A matching pair stays face up.
- 2.Each pair you find shows what the term means.
- 3.Clear the board in as few moves as you can.
- 1.Find each listed term in the letter grid.
- 2.Drag across its letters: across, down or diagonally.
- 3.Find all five as fast as you can.
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Topics in the Oregon Water/Wastewater Operator Vocabulary Game
Certification requirements
Compliance and permits
Water treatment
Wastewater treatment
Distribution and collection
Laboratory analysis
Equipment and automation
Workplace practices
Sources for these terms (22)
- Wastewater Operator Certification Program — Oregon DEQ · Source checked 2026-11-06
- Oregon Administrative Rules, Chapter 340, Division 049 — Wastewater System Operator Certification · Source checked 2026-11-06
- Oregon Drinking Water Systems & Operator Certification · Source checked 2026-11-06
- New Certification — Distribution and Treatment Systems Levels 1-4 · Source checked 2026-11-06
- Renewal — Distribution and Treatment Systems Levels 1-4 · Source checked 2026-11-06
- Administrative Rules — Operator Certification · Source checked 2026-11-06
- Learn about Harmful Algae, Cyanobacteria and Cyanotoxins | US EPA · Source checked 2026-11-06
- Sanitary Sewer Overflows (SSOs) · Source checked 2026-11-03
- Collections and Lift Station Maintenance: Reducing the Risks for Sanitary Sewer Overflows · Source checked 2026-11-06
- Guide to Operational Technology (OT) Security (NIST SP 800-82r3) · Source checked 2026-11-06
- 1910.132 - General requirements (Personal Protective Equipment) · Source checked 2026-11-03
- 1910.147 - The control of hazardous energy (lockout/tagout) · Source checked 2026-11-03
- Hazard Communication Standard: Safety Data Sheets (OSHA 3514) · Source checked 2026-11-03
- 5.2 Dissolved Oxygen and Biochemical Oxygen Demand (Monitoring & Assessment, EPA archive) · Source checked 2026-11-03
- Glossary of Acronyms & Technical Terms (EPA archive) · Source checked 2026-11-03
- What is a Wastewater Lagoon? (EPA 832-F-25-009, July 2025) · Source checked 2026-11-03
- National Pollutant Discharge Elimination System (NPDES) · Source checked 2026-11-03
- Optimize Your Wastewater Plant Operations; Save Energy - Save Money; Reduce Nutrient Discharge (EPA webinar, October 21, 2021) · Source checked 2026-11-03
- Wastewater Technology Fact Sheet: Package Plants (EPA 832-F-00-016, September 2000) · Source checked 2026-11-03
- EPA Needs to Determine What Barriers Prevent Water Systems from Securing Known SCADA Vulnerabilities (EPA OIG Report 2005-P-00002, January 6, 2005) · Source checked 2026-11-03
- Overview of Drinking Water Treatment Technologies · Source checked 2026-11-03
- 40 CFR 141.2 - Definitions (National Primary Drinking Water Regulations) · Source checked 2026-11-03
About the OR Water/Wastewater Operator Exam
The Oregon water and wastewater operator certification exams are WPI standardized exams delivered by PSI. DEQ certifies wastewater treatment and collection operators under OAR 340-049, and OHA certifies drinking water treatment and distribution operators under OAR 333-061. Topics include treatment processes, distribution and collection systems, laboratory testing, math, safety and Oregon rules.
Exam sponsor: Oregon DEQ (wastewater) / Oregon Health Authority (drinking water). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
100 questions
Time Limit
3 hours
Passing Score
70 (DEQ scaled score); 70% (OHA)
Exam / Certification Fees
DEQ: $177 Grade I application plus $127 exam fee (from July 1, 2026); OHA: $90-$195 application by level
Exam sponsor websiteFees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the OR Water/Wastewater Operator vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How do the OR Water/Wastewater Operator vocabulary games work?
There are 4 games built on 20 OR Water/Wastewater Operator terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.
Where do the OR Water/Wastewater Operator terms come from?
OpenExamPrep researched each term from the Oregon DEQ (wastewater) / Oregon Health Authority (drinking water) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
Who administers Oregon water operator certification?
Oregon splits certification: DEQ certifies wastewater operators (Grades I-IV under OAR 340-049) and OHA certifies drinking water operators (Levels 1-4 under OAR 333-061).
What happens after failing the Oregon exam twice?
DEQ and OHA rules both bar taking the same exam more than twice in 12 months unless the candidate shows specific education completed in the subject. OHA also contacts candidates before a third attempt and may require an exam preparation course.