perfluorooctanoic acid is a chemical contaminant that is a potential threat to human health.
| Warminster Municipal Authority | 0.3490 µg/L (on 6/9/2014) | PA |
|---|---|---|
| Oakdale | 0.3380 µg/L (on 1/5/2015) | MN |
| Horsham Water & Sewer Authority | 0.29 µg/L (on 6/24/2014) | PA |
| COLLEGEVILLE TRAPPE JOINT PWD | 0.2350 µg/L (on 3/22/2023) | PA |
| Commonwealth Utilities Corp. (Saipan) | 0.22 µg/L (on 2/22/2015) | MP |
| Doylestown Twp. Muni. Authority | 0.20605 µg/L (on 2/18/2014) | PA |
| POTRERO ELEMENTARY SCHOOL | 0.1883 µg/L (on 5/15/2024) | CA |
| LUBECK PSD | 0.1795 µg/L (on 3/19/2024) | WV |
| Artesian Water Company | 0.14 µg/L (on 7/17/2013) | DE |
| Vienna | 0.1290 µg/L (on 5/27/2015) | WV |
| Warrington Township Water & Sewer Department | 0.118390 µg/L (on 11/11/2014) | PA |
| South Orange Water Department | 0.11 µg/L (on 9/30/2015) | NJ |
| West Morgan - East Lawrence Water Authority | 0.10 µg/L (on 2/5/2014) | AL |
| VAW Water System, Inc. | 0.09 µg/L (on 2/18/2014) | AL |
| Security WSD | 0.09 µg/L (on 7/31/2014) | CO |
| Town of Cumberland | 0.0810 µg/L (on 2/18/2015) | RI |
| Rome | 0.07 µg/L (on 11/11/2015) | GA |
| Dover Water Department | 0.0670 µg/L (on 3/24/2014) | NH |
| Emerald Coast Utilities Authority | 0.0650 µg/L (on 11/11/2014) | FL |
| Parkersburg Utility Board | 0.0631 µg/L (on 3/25/2014) | WV |
| Hyannis Water System | 0.0620 µg/L (on 5/22/2014) | MA |
| Colbert County Rural Water System | 0.06 µg/L (on 12/10/2014) | AL |
| Freeport | 0.0590 µg/L (on 12/10/2014) | IL |
| CAERNARVON TWP AUTH | 0.0558 µg/L (on 4/14/2025) | PA |
| NJ American Water Co. - Raritan | 0.0540 µg/L (on 3/9/2015) | NJ |
| Eastern Municipal Water District | 0.0530 µg/L (on 6/18/2013) | CA |
| COLLINSVILLE WATER WORKS | 0.0525 µg/L (on 5/5/2025) | AL |
| Fort Lewis Water - Cantonment | 0.0511 µg/L (on 12/29/2014) | WA |
| West Lawrence Water Co-op | 0.05 µg/L (on 5/26/2015) | AL |
| Liberty Water LPSCO | 0.05 µg/L (on 5/29/2014) | AZ |
| City of Tempe | 0.05 µg/L (on 1/14/2014) | AZ |
| Hudson Water Supply | 0.05 µg/L (on 4/30/2015) | MA |
| United Water Delaware | 0.0499 µg/L (on 11/6/2014) | DE |
| Montclair Water Bureau | 0.0485 µg/L (on 11/21/2014) | NJ |
| Town of Payson | 0.0480 µg/L (on 6/9/2014) | AZ |
| Widefield WSD | 0.0480 µg/L (on 5/14/2014) | CO |
| Town of Hempstead Water District | 0.0480 µg/L (on 6/9/2014) | NY |
| LIVINGSTON TWP DIV OF WATER | 0.044 µg/L (on 4/3/2025) | NJ |
| Orange Water Department | 0.0440 µg/L (on 2/3/2015) | NJ |
| West Bend Waterworks | 0.043170 µg/L (on 11/3/2014) | WI |
| Westfield Water Department | 0.0430 µg/L (on 2/27/2013) | MA |
| Atlantic City MUA | 0.0430 µg/L (on 2/25/2015) | NJ |
| City of Corona | 0.0420 µg/L (on 7/10/2014) | CA |
| Merrimack Village District | 0.0420 µg/L (on 4/14/2014) | NH |
| Ridgewood Water | 0.0420 µg/L (on 9/23/2015) | NJ |
| Elsinore Valley Municipal Water District | 0.0410 µg/L (on 12/23/2014) | CA |
| Hastings | 0.0405 µg/L (on 12/10/2014) | MN |
| Gadsden Waterworks & Sewer Board | 0.04 µg/L (on 10/2/2014) | AL |
| Rainbow City Utilities Board | 0.04 µg/L (on 7/22/2013) | AL |
| Southside Waterworks | 0.04 µg/L (on 4/15/2013) | AL |