The median annual wage for Water and Wastewater Treatment Plant and System Operators in Casper, WY is $59,620 (May 2024 BLS OES). The mean (average) is $54,680.
Pay spans roughly $30,120 at the 10th percentile to $74,540 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.66 per hour. An estimated 50 people work as water and wastewater treatment plant and system operators in Casper, WY.
| Median (annual) | $59,620 |
| Mean (annual) | $54,680 |
| Median (hourly) | $28.66 |
| 10th percentile | $30,120 |
| 90th percentile | $74,540 |
| Employment | 50 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.