3 cities covered
Missouri water quality and radon, by city
2 of 3 covered Missouri cities use chloramine in at least part of the system, and 1 have hard water. 11 of Missouri's 115 counties are EPA radon zone 1.
| City | Disinfectant | Hardness | Lead | PFAS | Radon |
|---|---|---|---|---|---|
| Kansas City | Chloramine | 6.8 gpg | 2.1 ppb | Not detected | Zone 1 |
| St. Louis | Chloramine | 14.2 gpg | 1.8 ppb | Not detected | Zone 2 |
| Springfield | Chlorine | 7.0 gpg | 5.1 ppb | PFOS | Zone 2 |
Missouri radon zones
Zone 1 (highest)11 counties
Zone 297 counties
Zone 3 (lowest)7 counties