The median annual wage for Water and Wastewater Treatment Plant and System Operators in Great Falls, MT is $61,460 (May 2024 BLS OES). The mean (average) is $69,910.
Pay spans roughly $40,650 at the 10th percentile to $106,130 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $29.55 per hour. An estimated 40 people work as water and wastewater treatment plant and system operators in Great Falls, MT.
| Median (annual) | $61,460 |
| Mean (annual) | $69,910 |
| Median (hourly) | $29.55 |
| 10th percentile | $40,650 |
| 90th percentile | $106,130 |
| Employment | 40 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.