The median annual wage for Water and Wastewater Treatment Plant and System Operators in Lafayette-West Lafayette, IN is $51,470 (May 2024 BLS OES). The mean (average) is $53,350.
Pay spans roughly $42,310 at the 10th percentile to $60,110 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $24.74 per hour. An estimated 140 people work as water and wastewater treatment plant and system operators in Lafayette-West Lafayette, IN.
| Median (annual) | $51,470 |
| Mean (annual) | $53,350 |
| Median (hourly) | $24.74 |
| 10th percentile | $42,310 |
| 90th percentile | $60,110 |
| Employment | 140 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.