The median annual wage for Water and Wastewater Treatment Plant and System Operators in Boulder, CO is $67,400 (May 2024 BLS OES). The mean (average) is $70,510.
Pay spans roughly $52,110 at the 10th percentile to $88,210 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $32.40 per hour. An estimated 170 people work as water and wastewater treatment plant and system operators in Boulder, CO.
| Median (annual) | $67,400 |
| Mean (annual) | $70,510 |
| Median (hourly) | $32.40 |
| 10th percentile | $52,110 |
| 90th percentile | $88,210 |
| Employment | 170 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.