The median annual wage for Water and Wastewater Treatment Plant and System Operators in Indianapolis-Carmel-Greenwood, IN is $58,790 (May 2024 BLS OES). The mean (average) is $58,390.
Pay spans roughly $42,000 at the 10th percentile to $76,440 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $28.27 per hour. An estimated 620 people work as water and wastewater treatment plant and system operators in Indianapolis-Carmel-Greenwood, IN.
| Median (annual) | $58,790 |
| Mean (annual) | $58,390 |
| Median (hourly) | $28.27 |
| 10th percentile | $42,000 |
| 90th percentile | $76,440 |
| Employment | 620 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.