BLS Occupational Employment & Wage Statistics · May 2025
Water and Wastewater Treatment Plant and System Operators in Massachusetts earn between $50,980 and $91,390, with a mean of $69,900. The national average for this role is $62,404.
| Location | Mean Salary |
|---|---|
| Massachusetts | $69,900 |
| National Average | $62,404 |
| California | $87,190 |
| Washington | $82,770 |
| Nevada | $80,880 |
| Connecticut | $78,890 |
Bureau of Labor Statistics OEWS, May 2025. Massachusetts. Hourly wages assume 2,080 hours/year.