Massachusetts ranks 11th of 50 states and D.C. for water and wastewater treatment plant and system operators pay, trailing top-paying California ($82,100) by $16,480 — a 25% gap.
The 10th-to-90th percentile range runs from $49,660 to $82,150 — a $32,490 spread, 33% tighter than the national $48,290 range.
Massachusetts employs roughly 2.0% of all water and wastewater treatment plant and system operators in the country (2,480 workers).
Salary Range: 10th to 90th Percentile
Full Percentile Breakdown
| Percentile | Annual Wage | Hourly Wage |
|---|---|---|
| 10th percentile (entry-level) | $49,660 | $23.88 |
| 25th percentile | $59,260 | $28.49 |
| 50th percentile (median) | $65,620 | $31.55 |
| 75th percentile | $76,020 | $36.55 |
| 90th percentile (top earners) | $82,150 | $39.50 |
| Mean (average) | $67,650 | $32.52 |
How Massachusetts Compares
| State | Median Annual | vs. Massachusetts |
|---|---|---|
| Massachusetts (current) | $65,620 | n/a |
| California | $82,100 | +25% |
| Nevada | $79,140 | +21% |
| Washington | $78,810 | +20% |
| Alaska | $76,910 | +17% |
| New Jersey | $75,200 | +15% |
| Connecticut | $74,450 | +13% |
| Minnesota | $70,470 | +7% |
| Colorado | $68,220 | +4% |
Showing top-paying states with available data. View all states →
Related Occupations in Massachusetts
| Occupation | Median Annual | Employment |
|---|---|---|
| Interpreters and Translators | $65,490 | 2,250 |
| Tool and Die Makers | $65,840 | 950 |
| Engineering Technologists and Technicians, Except Drafters, All Other | $65,890 | 1,080 |
| First-Line Supervisors of Landscaping, Lawn Service, and Groundskeeping Workers | $66,010 | 2,260 |
| Biological Technicians | $65,020 | 8,610 |
| Mental Health and Substance Abuse Social Workers | $64,960 | 6,790 |
Frequently Asked Questions
What is the average Water and Wastewater Treatment Plant and System Operators salary in Massachusetts?
The mean water and wastewater treatment plant and system operators salary in Massachusetts is $67,650 per year. The median (middle) salary is $65,620 per year.
What is the starting salary for a Water and Wastewater Treatment Plant and System Operators in Massachusetts?
Entry-level water and wastewater treatment plant and system operatorss (10th percentile) in Massachusetts typically earn around $49,660 per year. Workers at the 25th percentile earn approximately $59,260 per year.
What is the highest Water and Wastewater Treatment Plant and System Operators salary in Massachusetts?
Top earners (90th percentile) in this occupation in Massachusetts make approximately $82,150 per year. Those in the 75th percentile earn around $76,020 per year.
How does the Massachusetts Water and Wastewater Treatment Plant and System Operators salary compare to the national average?
The median water and wastewater treatment plant and system operators salary in Massachusetts is $65,620, which is +13% above national average of $58,260.