The median annual wage for Water and Wastewater Treatment Plant and System Operators in Hawaii is $65,800 (May 2024 BLS OES). The mean (average) is $64,500.
Pay spans roughly $50,500 at the 10th percentile to $81,990 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $31.64 per hour. An estimated 660 people work as water and wastewater treatment plant and system operators in Hawaii.
| Median (annual) | $65,800 |
| Mean (annual) | $64,500 |
| Median (hourly) | $31.64 |
| 10th percentile | $50,500 |
| 90th percentile | $81,990 |
| Employment | 660 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.