The median annual wage for Water and Wastewater Treatment Plant and System Operators in St. Joseph, MO-KS is $52,800 (May 2024 BLS OES). The mean (average) is $55,750.
Pay spans roughly $37,620 at the 10th percentile to $74,060 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $25.38 per hour. An estimated 60 people work as water and wastewater treatment plant and system operators in St. Joseph, MO-KS.
| Median (annual) | $52,800 |
| Mean (annual) | $55,750 |
| Median (hourly) | $25.38 |
| 10th percentile | $37,620 |
| 90th percentile | $74,060 |
| Employment | 60 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.