The median annual wage for Water and Wastewater Treatment Plant and System Operators in Los Angeles-Long Beach-Anaheim, CA is $80,690 (May 2024 BLS OES). The mean (average) is $84,740.
Pay spans roughly $55,170 at the 10th percentile to $115,290 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $38.79 per hour. An estimated 2,070 people work as water and wastewater treatment plant and system operators in Los Angeles-Long Beach-Anaheim, CA.
| Median (annual) | $80,690 |
| Mean (annual) | $84,740 |
| Median (hourly) | $38.79 |
| 10th percentile | $55,170 |
| 90th percentile | $115,290 |
| Employment | 2,070 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.