4 cities covered
New Jersey water quality and radon, by city
1 of 4 covered New Jersey cities use chloramine in at least part of the system, and 0 have hard water. 7 of New Jersey's 21 counties are EPA radon zone 1.
| City | Disinfectant | Hardness | Lead | PFAS | Radon |
|---|---|---|---|---|---|
| Newark | Chlorine | 2.2 gpg | Not detected | PFOA | Zone 2 |
| Jersey City | Chlorine | 4.3 gpg | 5.7 ppb | PFOS, PFOA | Zone 2 |
| Paterson | Chlorine | 3.7 gpg | 2.4 ppb | PFOA, PFOS | Zone 2 |
| Elizabeth | Chloramine | 3.2 gpg | 2 ppb | PFOA | Zone 2 |
New Jersey radon zones
Zone 1 (highest)7 counties
Zone 211 counties
Zone 3 (lowest)3 counties