| City of Sacramento - Main | 100 µg/L (on 12/4/2019) | CA |
|---|---|---|
| PA American Water Co. - Lake Scranton | 32 µg/L (on 11/5/2019) | PA |
| City of Alexandria Water | 9.87 µg/L (on 3/9/2020) | LA |
| City of Hanford | 9.5 µg/L (on 11/6/2018) | CA |
| Dixon Water Company | 9.5 µg/L (on 10/15/2020) | CA |
| Buckeye Water District #50 | 9.4 µg/L (on 7/10/2019) | LA |
| City of Pineville Water | 8.8 µg/L (on 11/7/2019) | LA |
| Suffolk County Water Authority | 7.826845 µg/L (on 7/16/2018) | NY |
| City of Lemoore | 7.7 µg/L (on 11/20/2018) | CA |
| City of Granbury | 7.3 µg/L (on 1/27/2020) | TX |