The median annual wage for Water and Wastewater Treatment Plant and System Operators in Manhattan, KS is $46,050 (May 2024 BLS OES). The mean (average) is $49,610.
Pay spans roughly $34,430 at the 10th percentile to $65,500 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $22.14 per hour. An estimated 70 people work as water and wastewater treatment plant and system operators in Manhattan, KS.
| Median (annual) | $46,050 |
| Mean (annual) | $49,610 |
| Median (hourly) | $22.14 |
| 10th percentile | $34,430 |
| 90th percentile | $65,500 |
| Employment | 70 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.