Water and Wastewater Treatment Plant and System Operators: Salary, Education, and Career Path (2026)
The U.S. has 126,750 water and wastewater treatment plant and system operators, and they earn a median of $58,260/year. The range runs from $38K to $86K. California pays the most.
What it takes
The BLS lists the typical education for this role as varies by employer.
Entry-level water and wastewater treatment plant and system operators start around $38K. The gap between that and the median ($58K) is where experience, certifications, and location make the difference.
Top earners clear $86K, but that's the 90th percentile. Getting there usually takes a decade or more of experience, the right credentials, and being in a high-paying market.
Salary progression
Highest paying states
| State | Median salary | Employment |
|---|---|---|
| California | $82K | 11,260 |
| Nevada | $79K | N/A |
| Washington | $79K | 1,950 |
| Alaska | $77K | 570 |
| New Jersey | $75K | 2,040 |
| Connecticut | $74K | 750 |
| Minnesota | $70K | 2,050 |
| New Hampshire | $66K | 930 |
| Hawaii | $66K | 660 |
| Massachusetts | $66K | 2,480 |
Frequently asked questions
How much does a water and wastewater treatment plant and system operators make?▼
The median water and wastewater treatment plant and system operators salary in the United States is $58,260 per year ($28/hour). Entry-level positions start around $37,870, while experienced professionals earn up to $86,160.
What education do you need to become a water and wastewater treatment plant and system operators?▼
The BLS lists the typical entry-level education as varies by employer. State licensing or certification requirements vary, so check your state's board for specifics.
What is the job outlook for water and wastewater treatment plant and system operators?▼
Check the Bureau of Labor Statistics Occupational Outlook Handbook for the latest employment projections for water and wastewater treatment plant and system operators.
What are the highest paying states for water and wastewater treatment plant and system operators?▼
The highest paying states for water and wastewater treatment plant and system operators are California ($82,100), Nevada ($79,140), Washington ($78,810), Alaska ($76,910), New Jersey ($75,200). Salaries vary significantly by location due to cost of living and local demand.