BLS Occupational Employment & Wage Statistics · May 2025
Water and Wastewater Treatment Plant and System Operators in California earn between $56,030 and $123,380, with a mean of $87,190. The national average for this role is $62,404.
| Location | Mean Salary |
|---|---|
| California | $87,190 |
| National Average | $62,404 |
| Washington | $82,770 |
| Nevada | $80,880 |
| Connecticut | $78,890 |
| New Jersey | $77,530 |
Bureau of Labor Statistics OEWS, May 2025. California. Hourly wages assume 2,080 hours/year.