The median annual wage for Water and Wastewater Treatment Plant and System Operators in Rapid City, SD is $50,000 (May 2024 BLS OES). The mean (average) is $54,420.
Pay spans roughly $46,470 at the 10th percentile to $67,860 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $24.04 per hour. An estimated 100 people work as water and wastewater treatment plant and system operators in Rapid City, SD.
| Median (annual) | $50,000 |
| Mean (annual) | $54,420 |
| Median (hourly) | $24.04 |
| 10th percentile | $46,470 |
| 90th percentile | $67,860 |
| Employment | 100 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.