The median annual wage for Water and Wastewater Treatment Plant and System Operators in Helena, MT is $57,770 (May 2024 BLS OES). The mean (average) is $58,850.
Pay spans roughly $41,660 at the 10th percentile to $81,530 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $27.77 per hour. An estimated 40 people work as water and wastewater treatment plant and system operators in Helena, MT.
| Median (annual) | $57,770 |
| Mean (annual) | $58,850 |
| Median (hourly) | $27.77 |
| 10th percentile | $41,660 |
| 90th percentile | $81,530 |
| Employment | 40 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.