The median annual wage for Water and Wastewater Treatment Plant and System Operators in Louisiana is $38,690 (May 2024 BLS OES). The mean (average) is $43,440.
Pay spans roughly $29,760 at the 10th percentile to $61,350 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $18.60 per hour. An estimated 2,230 people work as water and wastewater treatment plant and system operators in Louisiana.
| Median (annual) | $38,690 |
| Mean (annual) | $43,440 |
| Median (hourly) | $18.60 |
| 10th percentile | $29,760 |
| 90th percentile | $61,350 |
| Employment | 2,230 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.