1 city covered
South Dakota water quality and radon, by city
1 of 1 covered South Dakota cities use chloramine in at least part of the system, and 0 have hard water. 48 of South Dakota's 66 counties are EPA radon zone 1.
| City | Disinfectant | Hardness | Lead | PFAS | Radon |
|---|---|---|---|---|---|
| Sioux Falls | Chloramine | 7.0 gpg | 3 ppb | Not detected | Zone 1 |
South Dakota radon zones
Zone 1 (highest)48 counties
Zone 218 counties
Zone 3 (lowest)0 counties