The median annual wage for Water and Wastewater Treatment Plant and System Operators in Washington-Arlington-Alexandria, DC-VA-MD-WV is $69,460 (May 2024 BLS OES). The mean (average) is $72,240.
Pay spans roughly $50,020 at the 10th percentile to $98,400 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $33.40 per hour. An estimated 1,450 people work as water and wastewater treatment plant and system operators in Washington-Arlington-Alexandria, DC-VA-MD-WV.
| Median (annual) | $69,460 |
| Mean (annual) | $72,240 |
| Median (hourly) | $33.40 |
| 10th percentile | $50,020 |
| 90th percentile | $98,400 |
| Employment | 1,450 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.