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Water/Wastewater Operator — OIT/ORC
Total cost: $150
Governing Authority
Virginia Department of Professional and Occupational Regulation (DPOR) - Board for Waterworks and Wastewater Works Operators
Official website →Yes
Certification Required
Accepted
ABC Exams Accepted
Available
Water Treatment
Available
Wastewater Treatment
20 hrs
CE Hours
$150
Total Initial Fees
Education & Training Requirements
VerifiedMinimum Education
High school diploma or GED required; specialized training can substitute for up to half of experience requirements
Minimum Degree Level
High school diploma/GED
Approved Programs
DPOR-approved training programs; DEQ-approved continuing professional education courses
Water and wastewater operator certification requires at minimum a high school diploma or GED for entry-level positions. Higher certification levels may require additional education such as college coursework in water/wastewater technology, environmental science, chemistry, biology, or engineering. Many community colleges and technical schools offer water/wastewater technology programs that prepare candidates for certification examinations. On-the-job experience at a treatment facility is also required, with hours varying by certification level.
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ABC Certification & State Requirements
VerifiedABC Certification Accepted
Association of Boards of Certification
Water Treatment Cert.
Available
Wastewater Treatment Cert.
Available
Certification Details
Virginia DPOR administers licensing through the Board for Waterworks and Wastewater Works Operators and Onsite Sewage System Professionals. Plant classes 1-4 based on volume and complexity. PSI proctors computerized exams at various locations year-round. Specialized training can substitute for up to half the experience for Class 1-3.
The ABC (Association of Boards of Certification) is the primary national examination body for water and wastewater operators. Approximately 35 states accept ABC standardized examinations for operator certification. Certification is typically tiered (e.g., Class I through IV or Grade 1 through 4) with higher levels corresponding to more complex treatment facilities and larger population served. Water treatment, water distribution, wastewater treatment, and wastewater collection are separate certification categories in most states.
Examination Requirements
VerifiedABC Examinations Accepted
Association of Boards of Certification
Exam Topics
Water treatment, distribution, wastewater treatment, collection, regulations, safety, mathematics
Passing Score
70%
No State-Specific Exam
State Supplemental Examination
The ABC (Association of Boards of Certification) provides standardized examinations for water and wastewater operator certification, accepted by approximately 35 states. Examinations cover water treatment processes, distribution system operation, water quality analysis, laboratory procedures, regulatory compliance, safety protocols, and mathematics. A passing score of 70% is standard across most jurisdictions. Some states administer their own examinations covering state-specific regulations and treatment requirements. Separate examinations are typically required for water treatment, water distribution, wastewater treatment, and wastewater collection.
Overall licensing difficulty: 4/100
Study recommendation: 1–2 weeks of focused review is usually sufficient
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Water/Wastewater Operator Exam Prep
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Difficulty rating based on education, exam, and experience requirements. Individual experience may vary.
Study guides for water and wastewater operator certification exams.
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State Certification Requirements
VerifiedState Certification Required
State Certification Title
Licensed Waterworks/Wastewater Works Operator
Additional Notes
DPOR (not DEQ) administers the licensing program.
All 50 states and the District of Columbia require certification for water and wastewater treatment system operators under the federal Safe Drinking Water Act and Clean Water Act. Each state establishes its own certification program with tiered levels based on facility complexity and population served. The Association of Boards of Certification (ABC) provides standardized examinations used by approximately 35 states. Operators must demonstrate competency in treatment processes, water quality, regulatory compliance, and safety.
Facility Types & Operator Authority
VerifiedFacility Types
Waterworks (water treatment and distribution), wastewater works (wastewater treatment), onsite sewage systems
Certification Levels
Class 1 through Class 4 based on treatment volume and system complexity
Multiple Certifications
Permitted
Supervision Requirements
Licensed operator required at appropriate class for each facility
Certified water/wastewater operators are responsible for the safe and compliant operation of water treatment plants, water distribution systems, wastewater treatment facilities, and wastewater collection systems. They ensure safe drinking water for public consumption and proper treatment of sewage before discharge. Operators must be certified at a level equal to or higher than the facility's classification. Most states allow operators to hold multiple certifications across water treatment, distribution, wastewater treatment, and collection categories.
| Fee | Amount |
|---|---|
Application Fee PSI exam fee charged separately | $75 |
Certification Fee PSI exam fee charged separately | $75 |
Renewal Fee | $75 |
Total Initial Fees PSI exam fee charged separately | $150 |
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Renewal & CE Requirements
Verified2 years
Renewal Period
20 hrs
CE Hours Required
$75
Renewal Fee
CE Details
Class I, II, III: 20 CPE hours per 2-year cycle (Class I-II require 5 management hours). Class IV wastewater: 16 CPE hours per cycle.
Regulatory Board
Water and wastewater operator certifications must be renewed on schedule with the state certifying authority. Renewal cycles typically range from 2 to 3 years with 12-30 continuing education hours per cycle. CE requirements typically cover treatment processes, water quality analysis, regulatory compliance updates, laboratory procedures, safety protocols, and emerging contaminants. Many states accept training from ABC-approved providers, state conferences, and online courses.
Out-of-State Reciprocity
VerifiedEndorsement Available
Yes
ABC Reciprocity
Yes
Reciprocity Requirements
Most states offer reciprocity or endorsement for water/wastewater operators certified in other states. States that accept ABC examinations generally offer smoother reciprocity for operators who have passed ABC standardized tests at the equivalent level. Requirements typically include verification of current certification, meeting experience requirements, and paying application fees. Some states may require a state-specific examination covering local regulations. Reciprocity agreements vary and should be verified with the specific state certifying authority.
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Virginia uniquely combines waterworks operators, wastewater works operators, and onsite sewage system professionals under a single licensing board at DPOR (Department of Professional and Occupational Regulation) rather than the environmental agency.
DPOR (not DEQ) administers the licensing program.
Board also covers onsite sewage system professionals.
PSI proctors computerized exams year-round at various locations.
Training can substitute for up to half of experience for Class 1-3.
Class I-II require 5 of 20 CPE hours in management topics.
There is no interstate compact for water/wastewater operators. ABC member states generally recognize each other's ABC exam scores, providing significant mobility.
Water Wastewater Operator requirements in nearby states
| State | Total Cost | Timeline | |
|---|---|---|---|
| Virginia (you) | $150 | 32–76 wks | |
| District of Columbia | $100 | 32–76 wks | → |
| Kentucky | $100 | 32–76 wks | → |
| Maryland | $150 | 32–76 wks | → |
| North Carolina | $150 | 32–76 wks | → |
See how Virginia compares: Water Wastewater Operator License Fees by State — Cheapest to Most Expensive →
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Water Wastewater Operator licensing requirements nationwide →
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Water Wastewater Operator Schools in Virginia
Compare approved training programs, costs, and requirements.
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Transfer your Water Wastewater Operator license from Virginia to: Kentucky → | Maryland → | North Carolina → | Tennessee → | West Virginia → | District of Columbia →
Virginia requires certification for water/wastewater operators. ABC examinations are accepted. All certification is managed through the Virginia Department of Professional and Occupational Regulation (DPOR) - Board for Waterworks and Wastewater Works Operators.
Requirements vary by state. Always verify current requirements with your state certifying authority.