The median annual wage for Water and Wastewater Treatment Plant and System Operators in Slidell-Mandeville-Covington, LA is $42,630 (May 2024 BLS OES). The mean (average) is $46,660.
Pay spans roughly $31,210 at the 10th percentile to $74,170 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $20.49 per hour. An estimated 70 people work as water and wastewater treatment plant and system operators in Slidell-Mandeville-Covington, LA.
| Median (annual) | $42,630 |
| Mean (annual) | $46,660 |
| Median (hourly) | $20.49 |
| 10th percentile | $31,210 |
| 90th percentile | $74,170 |
| Employment | 70 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.