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Water/Wastewater Operator — OIT/ORC
Total cost: $100
Yes
Certification Required
Accepted
ABC Exams Accepted
Available
Water Treatment
Available
Wastewater Treatment
20 hrs
CE Hours
$100
Total Initial Fees
Education & Training Requirements
VerifiedMinimum Education
High school diploma or GED (High School Equivalency documentation required)
Minimum Degree Level
High school diploma/GED
Approved Programs
DEQ-approved training programs; Wyoming Rural Water Association training
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
Wyoming DEQ Operator Certification Program certifies operators for well systems, distribution systems, treatment plants, lagoon systems, and wastewater facilities. Certification type and level must match facility type and level. High School Equivalency (HSE) documentation required. Contact: opcert@wyo.gov or (307) 777-6128.
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, well systems, lagoon systems, 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
Certified Water/Wastewater Operator
Additional Notes
Certification type and level must match the facility type and level.
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
Well systems, water distribution systems, water treatment plants, lagoon systems, wastewater treatment facilities, wastewater collection systems
Certification Levels
Multiple types and levels based on facility type, size, and treatment complexity
Multiple Certifications
Permitted
Supervision Requirements
Correctly certified operator required for each facility type and level
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 Contact opcert@wyo.gov for current fee schedule | $50 |
Certification Fee Contact opcert@wyo.gov for current fee schedule | $50 |
Renewal Fee | $50 |
Total Initial Fees Contact opcert@wyo.gov for current fee schedule | $100 |
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Renewal & CE Requirements
Verified2 years
Renewal Period
20 hrs
CE Hours Required
$50
Renewal Fee
CE Details
Continuing education required per renewal cycle. Training opportunities available through DEQ and Wyoming Rural Water Association.
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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Confirmed — separate reciprocal certification application exists for 'Wastewater, Collection or Lagoon Systems' and lagoon systems are listed as a distinct exam and certification category.
Certification type and level must match the facility type and level.
Separate exam categories for well systems, distribution, treatment plants, lagoons, and wastewater.
High School Equivalency (HSE) documentation specifically required.
Contact: opcert@wyo.gov or (307) 777-6128.
EPA Region 8 also provides drinking water operator resources for Wyoming and tribal lands.
There is no interstate compact for water/wastewater operators. ABC member states generally recognize each other's ABC exam scores, providing significant mobility.
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Water Wastewater Operator Schools in Wyoming
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Wyoming requires certification for water/wastewater operators. ABC examinations are accepted. All certification is managed through the Wyoming Department of Environmental Quality.
Requirements vary by state. Always verify current requirements with your state certifying authority.