The median annual wage for Water and Wastewater Treatment Plant and System Operators in San Francisco-Oakland-Fremont, CA is $123,390 (May 2024 BLS OES). The mean (average) is $114,190.
Pay spans roughly $74,630 at the 10th percentile to $143,140 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $59.32 per hour. An estimated 1,160 people work as water and wastewater treatment plant and system operators in San Francisco-Oakland-Fremont, CA.
| Median (annual) | $123,390 |
| Mean (annual) | $114,190 |
| Median (hourly) | $59.32 |
| 10th percentile | $74,630 |
| 90th percentile | $143,140 |
| Employment | 1,160 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.