The median annual wage for Water and Wastewater Treatment Plant and System Operators in Yakima, WA is $69,120 (May 2024 BLS OES). The mean (average) is $68,860.
Pay spans roughly $47,100 at the 10th percentile to $88,940 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $33.23 per hour. An estimated 80 people work as water and wastewater treatment plant and system operators in Yakima, WA.
| Median (annual) | $69,120 |
| Mean (annual) | $68,860 |
| Median (hourly) | $33.23 |
| 10th percentile | $47,100 |
| 90th percentile | $88,940 |
| Employment | 80 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.