The median annual wage for Water and Wastewater Treatment Plant and System Operators in Hagerstown-Martinsburg, MD-WV is $55,430 (May 2024 BLS OES). The mean (average) is $53,400.
Pay spans roughly $38,060 at the 10th percentile to $66,170 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $26.65 per hour. An estimated 130 people work as water and wastewater treatment plant and system operators in Hagerstown-Martinsburg, MD-WV.
| Median (annual) | $55,430 |
| Mean (annual) | $53,400 |
| Median (hourly) | $26.65 |
| 10th percentile | $38,060 |
| 90th percentile | $66,170 |
| Employment | 130 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.