Maine Water/Wastewater Operator Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Maine Water/Wastewater Operator Vocabulary Games
4 free word games built on 20 Maine Water/Wastewater Operator terms across 6 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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Videos and articles for deeper review.
Topics in the Maine Water/Wastewater Operator Vocabulary Game
Treatment process
Laboratory analysis
Administrative procedures
Equipment operation
Source water
Distribution system
Sources for these terms (21)
- 5.2 Dissolved Oxygen and Biochemical Oxygen Demand (Monitoring & Assessment, EPA archive) · Source checked 2026-11-06
- Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules · Source checked 2026-11-06
- Evaluation of Energy Conservation Measures for Wastewater Treatment Facilities (EPA 832-R-10-005, September 2010) · Source checked 2026-11-06
- Glossary of Acronyms & Technical Terms (EPA archive) · Source checked 2026-11-06
- What is a Wastewater Lagoon? (EPA 832-F-25-009, July 2025) · Source checked 2026-11-06
- National Primary Drinking Water Regulations · Source checked 2026-11-06
- Optimize Your Wastewater Plant Operations; Save Energy - Save Money; Reduce Nutrient Discharge (EPA webinar, October 21, 2021) · Source checked 2026-11-06
- Preliminary Wastewater Treatment (NPDES Operator Webinar, July 25, 2023) · Source checked 2026-11-06
- 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 2026-11-06
- Overview of Drinking Water Treatment Technologies · Source checked 2026-11-06
- 5.5 Turbidity (Monitoring & Assessment, EPA archive) · Source checked 2026-11-06
- 1910.147 - The control of hazardous energy (lockout/tagout) · Source checked 2026-11-06
- Hazard Communication Standard: Safety Data Sheets (OSHA 3514) · Source checked 2026-11-06
- 40 CFR 141.2 - Definitions (National Primary Drinking Water Regulations) · Source checked 2026-11-06
- Wastewater Operator Certification Program · Source checked 2026-11-06
- How to Become a Licensed Water Operator · Source checked 2026-11-06
- Groundwater Wells · Source checked 2026-11-06
- Harmful Algal Blooms (HABs) · Source checked 2026-11-06
- Water Treatment Operator Class I Need-to-Know Criteria (2025/2026) · Source checked 2026-11-06
- Water Distribution Operator Class I Need-to-Know Criteria (2025/2026) · Source checked 2026-11-06
- WaterSense at Work: Metering and Submetering · Source checked 2026-11-06
About the ME Water Operator Exam
The Maine water/wastewater operator certification exam tests knowledge of state regulations, water treatment, wastewater treatment, distribution/collection systems, laboratory testing, and safety procedures required for operator certification.
Exam sponsor: Maine DEP (wastewater) / Maine CDC (drinking water). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
100 questions
Time Limit
Up to 3 hours
Passing Score
70%
Reported exam pass rate: ~65-75%. estimated first-time pass rate This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the ME Water 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 ME Water Operator vocabulary games work?
There are 4 games built on 20 ME Water 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 ME Water Operator terms come from?
OpenExamPrep researched each term from the Maine DEP (wastewater) / Maine CDC (drinking water) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What certification levels does Maine offer?
For drinking water, Maine CDC licenses operators at Very Small Water System (VSWS) and Class I-IV levels in both treatment and distribution. For wastewater, Maine DEP certifies operators at Biological Grades 1-5, Physical/Chemical Grades 1-2 and Spray Irrigation Treatment System (SITS) Grades 1-2. Higher levels require more experience.
What score do I need to pass?
A score of 70% is required to pass the Maine operator certification exam.