Indiana Water/Wastewater Operator Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Indiana Water/Wastewater Operator Vocabulary Games
4 free word games built on 20 Indiana Water/Wastewater Operator terms across 13 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 Indiana Water/Wastewater Operator Vocabulary Game
Rules and regulations
Aeration basin
Advanced treatment
Laboratory
Water quality
Solids handling
Clarifiers
Preliminary treatment
Safety
Maintenance
Water treatment
Pretreatment
Calculations
Sources for these terms (24)
- National Pollutant Discharge Elimination System (NPDES) · 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
- 5.2 Dissolved Oxygen and Biochemical Oxygen Demand (Monitoring & Assessment, EPA archive) · Source checked 2026-11-06
- Glossary of Acronyms & Technical Terms (EPA archive) · Source checked 2026-11-06
- Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules · Source checked 2026-11-06
- Basic Information about Sewage Sludge and Biosolids · Source checked 2026-11-06
- Primary Clarifiers (EPA Operator Webinar Series, August 24, 2023) · Source checked 2026-11-06
- Preliminary Wastewater Treatment (NPDES Operator Webinar, July 25, 2023) · Source checked 2026-11-06
- 1910.132 - General requirements (Personal Protective Equipment) · Source checked 2026-11-06
- 1915.11 - Scope, application, and definitions applicable to this subpart · Source checked 2026-11-06
- 1926.1202 - Definitions (Confined Spaces in Construction) · Source checked 2026-11-06
- 1910.146 - Permit-required confined spaces · 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
- 40 CFR 141.2 - Definitions (National Primary Drinking Water Regulations) · Source checked 2026-11-06
- Drinking Water Operator Exam Study Guide — WT1 Groundwater (IDEM) · Source checked 2026-11-06
- Drinking Water Operator Certification (IDEM) · Source checked 2026-11-06
- Wastewater Operator Certification Manual (IDEM Book 10) · Source checked 2026-11-06
- Process Control Manual for Aerobic Biological Wastewater Treatment Facilities (EPA, March 1977) · Source checked 2026-11-06
- IDEM Wastewater Operator Examination Study Guide — Municipal Class 2 Exam (April 2025) · Source checked 2026-11-06
- Wastewater Operator Certification Exam Formula Sheet (IDEM) · Source checked 2026-11-06
- About IDEM (Indiana Department of Environmental Management) · Source checked 2026-11-06
- Wastewater Certification Information (IDEM) · Source checked 2026-11-06
- Drinking Water Operator Formula and Conversion Tables (IDEM) · Source checked 2026-11-06
About the IN Water/WW Operator Exam
The Indiana water and wastewater operator certification exams are developed by IDEM and given by computer at Ivy Tech testing sites. They cover state rules, water and wastewater treatment, distribution and collection, laboratory testing, safety and math. Wastewater classes: I-SP, A-SO, I, A, II, B, III, C, IV and D; drinking water grades: WT1 to WT5 and distribution grades DSS, DSM and DSL.
Exam sponsor: Indiana Department of Environmental Management (IDEM). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
100 questions
Time Limit
3 hours (wastewater exams)
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 IN Water Op 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 IN Water Op vocabulary games work?
There are 4 games built on 20 IN Water Op 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 IN Water Op terms come from?
OpenExamPrep researched each term from the Indiana Department of Environmental Management (IDEM) 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 Indiana offer?
Wastewater operators are certified in ten classes: I-SP, A-SO, I, A, II, B, III, C, IV and D. Drinking water operators are certified in five treatment grades (WT1 to WT5) and three distribution grades (DSS, DSM and DSL).
What score do I need to pass?
The minimum passing score is 70%. Requirements may vary by certification level.