100+ Free VA Water/Wastewater Operator Practice Questions

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2026 Statistics

Key Facts: VA Water/Wastewater Operator Exam

6 Classes

Waterworks Levels

VA DPOR

4 Classes

Wastewater Levels

VA DPOR

2 years

Renewal Cycle

VA DPOR

220 days

1 Year Experience

VA DPOR

PSI

Exam Administrator

VA DPOR

20 CPE

Hours per Cycle (Class I–III)

VA DPOR

About the VA Water/Wastewater Operator Exam

Virginia certifies waterworks operators in six classes (Class 1–6) and wastewater operators in four classes (Class I–IV). Exams are PSI-proctored, computerized, and available year-round. The next renewal cycle is 2026 with 20 CPE hours required for Class I–III and 16 for Class IV.

Questions

100 scored questions

Time Limit

Varies by class level

Passing Score

70%

Exam Fee

Varies; PSI-proctored computerized exam (Virginia Department of Professional and Occupational Regulation (DPOR))

VA Water/Wastewater Operator Exam Content Outline

20%

State Laws & Licensing

Virginia DPOR certification, Class 1–6 waterworks, Class I–IV wastewater, PSI exams, 2-year renewal, and CPE requirements

20%

Water Treatment

Coagulation, flocculation, sedimentation, filtration, disinfection, CT values, and source water protection

20%

Wastewater Treatment

Activated sludge, BOD removal, sludge handling, nitrification/denitrification, and effluent disinfection

20%

Distribution & Collection

Pump operations, hydraulics, cross-connection control, collection system maintenance, and I&I reduction

20%

Laboratory & Safety

Water quality testing, sampling, math calculations, confined space, LOTO, and chemical safety

How to Pass the VA Water/Wastewater Operator Exam

What You Need to Know

Passing score: 70%
Exam length: 100 questions
Time limit: Varies by class level
Exam fee: Varies; PSI-proctored computerized exam

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

VA Water/Wastewater Operator Study Tips from Top Performers

1Master Virginia's six waterworks classes and four wastewater classes with their specific system size/treatment requirements

2Know that one year of VA experience = 220 days or 1,760 hours

3Study the 2026 CPE requirements: 20 hrs for Class I–III (5 in management for I–II), 16 hrs for Class IV

4Understand Virginia's DPOR vs. DEQ vs. VDH roles in operator licensing and facility regulation

5Practice water math: pounds formula, detention time, flow conversions, and percent removal

Frequently Asked Questions

How many waterworks operator classes does Virginia have?

Six classes (1–6). Class 3 operators can operate Class 3–6 waterworks, while Class 6 is restricted to small systems (<400 persons) with basic treatment.

How are Virginia exams administered?

Computerized exams proctored by PSI, available throughout the year at various locations across Virginia.

What are the CPE requirements for 2026 renewal?

Class I–III wastewater: 20 CPE hours per 2-year cycle (Class I–II need 5 in management). Class IV: 16 CPE hours.

How is one year of experience defined?

A minimum of 220 days or 1,760 hours of actual work at a public water supply system.