The median annual wage for Water and Wastewater Treatment Plant and System Operators in Maine is $60,960 (May 2024 BLS OES). The mean (average) is $59,350.
Pay spans roughly $42,400 at the 10th percentile to $81,270 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $29.31 per hour. An estimated 660 people work as water and wastewater treatment plant and system operators in Maine.
| Median (annual) | $60,960 |
| Mean (annual) | $59,350 |
| Median (hourly) | $29.31 |
| 10th percentile | $42,400 |
| 90th percentile | $81,270 |
| Employment | 660 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.