The median annual wage for Water and Wastewater Treatment Plant and System Operators in New Hampshire is $66,240 (May 2024 BLS OES). The mean (average) is $65,300.
Pay spans roughly $49,460 at the 10th percentile to $72,580 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $31.85 per hour. An estimated 930 people work as water and wastewater treatment plant and system operators in New Hampshire.
| Median (annual) | $66,240 |
| Mean (annual) | $65,300 |
| Median (hourly) | $31.85 |
| 10th percentile | $49,460 |
| 90th percentile | $72,580 |
| Employment | 930 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.