The median annual wage for Water and Wastewater Treatment Plant and System Operators in Sumter, SC is $41,900 (May 2024 BLS OES). The mean (average) is $45,020.
Pay spans roughly $32,850 at the 10th percentile to $59,610 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $20.14 per hour. An estimated 60 people work as water and wastewater treatment plant and system operators in Sumter, SC.
| Median (annual) | $41,900 |
| Mean (annual) | $45,020 |
| Median (hourly) | $20.14 |
| 10th percentile | $32,850 |
| 90th percentile | $59,610 |
| Employment | 60 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.