Water Operator Knowledge Map

Choose a topic, practice related questions, and review its flashcards. A guide or calculator appears only when the existing resource covers that topic. These are study topics, not separate certification exams.

This map covers 20 curated topics. Browse all 485 available questions or all 63 flashcards for material beyond these topic links.

Water Treatment · Module 1.1

Coagulation, Flocculation & Jar Testing (AWWA M37)

📖 Study guide 🧮 Calculator 📝 Practice 20 topic questions ⚡ Review 2 topic flashcards 📝 Question WT-1101 📝 Question WT-1102 📝 Question WT-1103 ⚡ Flashcard FC-WT-001 ⚡ Flashcard FC-WT-002

Water Treatment · Module 1.2

Sedimentation Hydraulics (SOR, WOR & Tube Settlers)

📖 Study guide 🧮 Calculator 📝 Practice 20 topic questions ⚡ Review 1 topic flashcards 📝 Question WT-1201 📝 Question WT-1202 📝 Question WT-1203 ⚡ Flashcard FC-WT-004

Water Treatment · Module 1.3

Granular Media Filtration, UFRV & Backwash Expansion

📖 Study guide 🧮 Calculator 📝 Practice 20 topic questions ⚡ Review 2 topic flashcards 📝 Question WT-1301 📝 Question WT-1302 📝 Question WT-1303 ⚡ Flashcard FC-WT-003 ⚡ Flashcard FC-WT-005

Water Treatment · Module 1.4

Chlorine Kinetics, HOCl Speciation & SWTR CT Disinfection

📖 Study guide 🧮 Calculator 📝 Practice 20 topic questions ⚡ Review 2 topic flashcards 📝 Question WT-1401 📝 Question WT-1402 📝 Question WT-1403 ⚡ Flashcard FC-WT-006 ⚡ Flashcard FC-WT-007

Water Treatment · Module 1.5

Hydrofluosilicic Acid Fluoridation & AFI Factor

🧮 Calculator 📝 Practice 20 topic questions ⚡ Review 6 topic flashcardsGuide not yet available📝 Question WT-1501 📝 Question WT-1502 ⚡ Flashcard FC-WT-008 ⚡ Flashcard FC-WT-009 ⚡ Flashcard FC-WT-010 ⚡ Flashcard FC-WT-011 ⚡ Flashcard FC-WT-012 ⚡ Flashcard FC-WT-013

Water Distribution · Module 2.1

Pipe Hydraulics, Q=AV, Pressure vs Head & Hazen-Williams

📖 Study guide 🧮 Calculator 📝 Practice 25 topic questions ⚡ Review 2 topic flashcards 📝 Question DIST-2101 📝 Question DIST-2102 ⚡ Flashcard FC-MATH-001 ⚡ Flashcard FC-DIST-001

Water Distribution · Module 2.2

Cross-Connection Control & Backflow Prevention Assemblies

📝 Practice 25 topic questions ⚡ Review 1 topic flashcardsGuide not yet availableNo matching calculator📝 Question DIST-2201 📝 Question DIST-2202 ⚡ Flashcard FC-DIST-008

Water Distribution · Module 2.3

AWWA C651-23 Continuous-Feed Water Main Disinfection

🧮 Calculator 📝 Practice 25 topic questions ⚡ Review 1 topic flashcardsGuide not yet available📝 Question DIST-2301 📝 Question DIST-2302 ⚡ Flashcard FC-DIST-003

Wastewater Treatment · Module 3.2

Activated Sludge Mass Balance (F/M, MCRT, SVI, RAS/WAS)

📖 Study guide 📝 Practice 25 topic questions ⚡ Review 3 topic flashcardsNo matching calculator📝 Question WW-3201 📝 Question WW-3202 📝 Question WW-3203 ⚡ Flashcard FC-WW-001 ⚡ Flashcard FC-WW-002 ⚡ Flashcard FC-WW-004

EPA & State Rules · Module 5.1

2024 EPA Final PFAS National Primary Drinking Water Regulation

📝 Practice 25 topic questions ⚡ Review 1 topic flashcardsGuide not yet availableNo matching calculator📝 Question REG-5101 📝 Question REG-5102 ⚡ Flashcard FC-REG-001

EPA & State Rules · Module 5.2

2024 EPA Lead and Copper Rule Improvements (LCRI)

📝 Practice 25 topic questions ⚡ Review 1 topic flashcardsGuide not yet availableNo matching calculator📝 Question REG-5201 📝 Question REG-5202 ⚡ Flashcard FC-REG-002

Water Distribution · Module 2.4

Distribution Storage Tank Volume, Fill Time & Turnover

🧮 Calculator 📝 Practice 25 topic questions ⚡ Review 5 topic flashcardsGuide not yet available📝 Question DIST-2401 📝 Question DIST-2402 ⚡ Flashcard FC-DIST-009 ⚡ Flashcard FC-DIST-010 ⚡ Flashcard FC-DIST-011 ⚡ Flashcard FC-DIST-012 ⚡ Flashcard FC-DIST-013

Wastewater Treatment · Module 3.1

Preliminary Treatment & Bar Screen Channel Hydraulics

📝 Practice 25 topic questions ⚡ Review 3 topic flashcardsGuide not yet availableNo matching calculator📝 Question WW-3101 📝 Question WW-3102 ⚡ Flashcard FC-WW-013 ⚡ Flashcard FC-WW-014 ⚡ Flashcard FC-WW-015

Wastewater Treatment · Module 3.3

Biological Nitrification, Denitrification & Alkalinity Demand

📖 Study guide 🧮 Calculator 📝 Practice 25 topic questions ⚡ Review 7 topic flashcards 📝 Question WW-3301 📝 Question WW-3302 ⚡ Flashcard FC-WW-006 ⚡ Flashcard FC-WW-007 ⚡ Flashcard FC-WW-008 ⚡ Flashcard FC-WW-009 ⚡ Flashcard FC-WW-010 ⚡ Flashcard FC-WW-011 ⚡ Flashcard FC-WW-012

Wastewater Treatment · Module 3.4

Anaerobic Digester Stability, VA/Alkalinity Ratio & Solids Reduction

📖 Study guide 📝 Practice 25 topic questions ⚡ Review 5 topic flashcardsNo matching calculator📝 Question WW-3401 📝 Question WW-3402 ⚡ Flashcard FC-WW-016 ⚡ Flashcard FC-WW-017 ⚡ Flashcard FC-WW-018 ⚡ Flashcard FC-WW-019

Water Mathematics · Module 4.1

Pounds Formula, Solution Purity & Specific Gravity

📖 Study guide 🧮 Calculator 📝 Practice 34 topic questions ⚡ Review 2 topic flashcards 📝 Question MATH-4101 📝 Question MATH-4102 ⚡ Flashcard FC-MATH-001 ⚡ Flashcard FC-MATH-002

Water Mathematics · Module 4.2

Tank Volume & Hydraulic Detention Time

📖 Study guide 🧮 Calculator 📝 Practice 33 topic questions ⚡ Review 6 topic flashcards 📝 Question MATH-4201 📝 Question MATH-4202 ⚡ Flashcard FC-MATH-009 ⚡ Flashcard FC-MATH-010 ⚡ Flashcard FC-MATH-011 ⚡ Flashcard FC-MATH-012 ⚡ Flashcard FC-MATH-013 ⚡ Flashcard FC-MATH-014

Water Mathematics · Module 4.3

Wire-to-Water Pump Efficiency, Horsepower & Energy Cost

📖 Study guide 🧮 Calculator 📝 Practice 33 topic questions ⚡ Review 1 topic flashcards 📝 Question MATH-4301 📝 Question MATH-4302 ⚡ Flashcard FC-MATH-007

EPA & State Rules · Module 5.3

Federal Revised Total Coliform Rule Repeat Sampling

📝 Practice 25 topic questions ⚡ Review 3 topic flashcardsGuide not yet availableNo matching calculator📝 Question REG-5301 📝 Question REG-5302 ⚡ Flashcard FC-REG-003 ⚡ Flashcard FC-REG-004 ⚡ Flashcard FC-REG-005

EPA & State Rules · Module 5.4