North Dakota Water/Wastewater Operator Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the North Dakota Water/Wastewater Operator Vocabulary Games
4 free word games built on 20 North Dakota Water/Wastewater Operator terms across 7 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.
Explore More Water / Wastewater Operator
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
1 Job Wiki
Free CEMore From This Family
Videos and articles for deeper review.
Topics in the North Dakota Water/Wastewater Operator Vocabulary Game
Water treatment
Wastewater treatment
Collection systems
Laboratory testing
Safety
State certification
Distribution systems
Sources for these terms (17)
- 5.2 Dissolved Oxygen and Biochemical Oxygen Demand (Monitoring & Assessment, EPA archive) · Source checked 2026-11-06
- Industrial Uses for Fats, Oils, and Grease · 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
- Wastewater Technology Fact Sheet: Package Plants (EPA 832-F-00-016, September 2000) · Source checked 2026-11-06
- Preliminary Wastewater Treatment (NPDES Operator Webinar, July 25, 2023) · Source checked 2026-11-06
- Primary Clarifiers (EPA Operator Webinar Series, August 24, 2023) · Source checked 2026-11-06
- Sanitary Sewer Overflows (SSOs) · 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
- 1910.132 - General requirements (Personal Protective Equipment) · Source checked 2026-11-06
- 40 CFR 141.2 - Definitions (National Primary Drinking Water Regulations) · Source checked 2026-11-06
- North Dakota Operator Certification Program: 2026 Annual Report to the U.S. Environmental Protection Agency (July 30, 2026) · Source checked 2026-11-06
- North Dakota Administrative Code Chapter 33.1-19-01: Certification of Water Treatment Facility Operators, Water Distribution and Storage System Operators, Wastewater Treatment Facility Operators, and Wastewater Collection and Transfer System Operators (amended effective April 1, 2026) · Source checked 2026-11-06
- Study Guide for Class 1A, I, and II: Water Distribution System Operators (NDDEQ, 12/15/2020) · Source checked 2026-11-06
About the ND Water/Wastewater Operator Exam
North Dakota classifies water and wastewater facilities in five classes (IA, I, II, III and IV) with separate exams for each. Certificates are valid for one year and expire January 1. This practice exam covers NDDEQ regulations under NDAC 33.1-19-01, treatment processes, distribution/collection, and laboratory procedures.
Exam sponsor: ND Department of Environmental Quality (NDDEQ). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Question count not published by the exam provider
Time Limit
Up to 4 hours (sessions run 8:00 a.m. to noon)
Passing Score
70%
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the ND 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 ND Water/Wastewater Operator vocabulary games work?
There are 4 games built on 20 ND 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 ND Water/Wastewater Operator terms come from?
OpenExamPrep researched each term from the ND Department of Environmental Quality (NDDEQ) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
How does ND classify water and wastewater facilities?
North Dakota classifies water and wastewater facilities in one of five classes (IA, I, II, III and IV) based on population served, treatment processes and complexity. Operators must hold a certificate at least equal to the classification of the facility or system where they have direct responsible charge.
How often must ND operator certificates be renewed?
ND operator certificates are valid for a maximum of one year and expire on January 1 (the April 1, 2026 rule change moved the date from July 1, so the July 2026 renewal moved to January 2027). Renewal requires twelve continuing education credits (CECs) earned within the current three-year period and the annual renewal fee. Each NDDEQ training session attended earns 12 CECs.