The median annual wage for Water and Wastewater Treatment Plant and System Operators in Ohio is $58,720 (May 2024 BLS OES). The mean (average) is $57,850.
Pay spans roughly $42,050 at the 10th percentile to $75,290 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.23 per hour. An estimated 5,550 people work as water and wastewater treatment plant and system operators in Ohio.
| Median (annual) | $58,720 |
| Mean (annual) | $57,850 |
| Median (hourly) | $28.23 |
| 10th percentile | $42,050 |
| 90th percentile | $75,290 |
| Employment | 5,550 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.