The median annual wage for Water and Wastewater Treatment Plant and System Operators in Riverside-San Bernardino-Ontario, CA is $82,500 (May 2024 BLS OES). The mean (average) is $85,230.
Pay spans roughly $56,370 at the 10th percentile to $109,410 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $39.66 per hour. An estimated 1,580 people work as water and wastewater treatment plant and system operators in Riverside-San Bernardino-Ontario, CA.
| Median (annual) | $82,500 |
| Mean (annual) | $85,230 |
| Median (hourly) | $39.66 |
| 10th percentile | $56,370 |
| 90th percentile | $109,410 |
| Employment | 1,580 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.