Wastewater Treatment Operator
Certification required for operators of municipal wastewater treatment facilities in Wisconsin.
How to Get a Wastewater Treatment Operator in Wisconsin
| Issuing Body | WI DNR |
| Initial Fee | $30 |
| Exam Required | Yes — DNR-administered exam; multiple grade levels based on facility size |
| Experience Required | Varies by grade level; education and experience requirements increase with grade |
Continuing Education
Wisconsin requires 18 hours of continuing education every Every 3 years to renew your wastewater treatment operator.
18 hours per 3-year cycle
License Lookup & Verification
Verify a wastewater treatment operator holder's credentials through the Wisconsin DSPS online license lookup tool.
Verify a License →Frequently Asked Questions — Wastewater Treatment Operator
What certifications are available for wastewater operators?
Subcategories include general, advanced, biological treatment, mechanical plant, and lagoon systems, with multiple grade levels within each.
How long does it take to become a wastewater operator?
Entry-level (Grade 1) requires a high school diploma, approved training, and passing the exam. Higher grades require additional education and experience.
Can the same person operate water and wastewater systems?
Yes, but separate certifications are required. Many operators in smaller communities hold both.
Never miss a renewal deadline.
Track CE requirements, renewal dates, and fee changes for every license you hold. Automated alerts so you stay compliant without the spreadsheet.