The median annual wage for Water and Wastewater Treatment Plant and System Operators in Chico, CA is $75,280 (May 2024 BLS OES). The mean (average) is $76,790.
Pay spans roughly $46,210 at the 10th percentile to $105,060 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $36.19 per hour. An estimated 110 people work as water and wastewater treatment plant and system operators in Chico, CA.
| Median (annual) | $75,280 |
| Mean (annual) | $76,790 |
| Median (hourly) | $36.19 |
| 10th percentile | $46,210 |
| 90th percentile | $105,060 |
| Employment | 110 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.