The median annual wage for Water and Wastewater Treatment Plant and System Operators in Wisconsin is $62,360 (May 2024 BLS OES). The mean (average) is $62,420.
Pay spans roughly $49,410 at the 10th percentile to $76,560 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $29.98 per hour. An estimated 2,110 people work as water and wastewater treatment plant and system operators in Wisconsin.
| Median (annual) | $62,360 |
| Mean (annual) | $62,420 |
| Median (hourly) | $29.98 |
| 10th percentile | $49,410 |
| 90th percentile | $76,560 |
| Employment | 2,110 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.