The median annual wage for Water and Wastewater Treatment Plant and System Operators in Baltimore-Columbia-Towson, MD is $58,740 (May 2024 BLS OES). The mean (average) is $63,130.
Pay spans roughly $40,890 at the 10th percentile to $97,010 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.24 per hour. An estimated 820 people work as water and wastewater treatment plant and system operators in Baltimore-Columbia-Towson, MD.
| Median (annual) | $58,740 |
| Mean (annual) | $63,130 |
| Median (hourly) | $28.24 |
| 10th percentile | $40,890 |
| 90th percentile | $97,010 |
| Employment | 820 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.