The record / Water systems
Public water systems
Every one of the 10,198 systems EPA tested for PFAS has a page here with its full per-compound results, the population it serves and its water source. Find yours by name through your state page, or start with the largest systems and the highest results below.
Highest measured results
Systems whose highest single result most exceeds a final federal limit. A high result is a legal obligation on the utility, not a statement about any individual tap.
| System | State | Compound | Highest result | Serves |
|---|---|---|---|---|
| CITY OF SUGAR LAND | TX | 6:2 FTS | 672 ng/L | 90,909 |
| Newport | MN | PFBA | 550 ng/L | 4,000 |
| NASHVILLE, TOWN OF | NC | PFOS | 490 ng/L | 5,900 |
| Woodbury | MN | PFBA | 386 ng/L | 82,643 |
| Hastings, MN | MN | PFBA | 380 ng/L | 23,222 |
| CITY OF CAMERON | TX | PFPeA | 339 ng/L | 5,489 |
| CALHOUN | GA | PFBS | 290 ng/L | 53,090 |
| PRESCOTT WATERWORKS | WI | PFBA | 280 ng/L | 4,258 |
| EXPERIMENTAL | PR | PFHxA | 260 ng/L | - |
| POTRERO ELEMENTARY SCHOOL | CA | PFHxS | 250.2 ng/L | 300 |
| RUNNING SPRINGS WATER DISTRICT | CA | PFOS | 236.5 ng/L | 5,268 |
| COLLEGEVILLE TRAPPE JOINT PWD | PA | PFOA | 235 ng/L | 8,470 |
| IL American - Lincoln | IL | PFBA | 233.2 ng/L | 15,200 |
| TELFORD BOROUGH AUTHORITY | PA | 6:2 FTS | 226.2 ng/L | 7,700 |
| EMERALD COAST UTILITIES AUTHORITY | FL | 6:2 FTS | 220.1 ng/L | 242,172 |
| NEWTON FALLS CITY | OH | PFBS | 220 ng/L | 6,109 |
| MDWASA - MAIN SYSTEM | FL | 6:2 FTS | 190 ng/L | 2,377,460 |
| GEORGETOWN WATER DEPARTMENT | DE | 6:2 FTS | 180 ng/L | 7,259 |
| LUBECK PSD | WV | PFOA | 179.5 ng/L | 11,724 |
| South Saint Paul | MN | PFBA | 168 ng/L | 20,664 |
| PEQUENAKONCK ELEMENTARY SCHOOL | NY | PFHxA | 160.4 ng/L | 700 |
| GADSDEN WATER WORKS AND SEWER BOARD | AL | PFBS | 155.4 ng/L | 44,637 |
| ARTONDALE WATER SYSTEM | WA | PFOS | 153.6 ng/L | 5,828 |
| EMMAUS BOROUGH PUBLIC WATER | PA | PFOS | 153 ng/L | 14,000 |
| BAYLEAF MASTER | NC | PFHxS | 152.6 ng/L | 16,715 |
| CHATTOOGA COUNTY | GA | PFBS | 150 ng/L | 9,190 |
| GWA NORTHERN WATER SYSTEM | GU | 6:2 FTS | 148.2 ng/L | - |
| WIDEFIELD WSD | CO | PFHxA | 140.6 ng/L | 27,640 |
| NORTHEAST ETOWAH COUNTY WATER CO-OP | AL | PFBS | 140 ng/L | 4,275 |
| Lake Elmo | MN | PFBA | 140 ng/L | 10,978 |
| NORTHROP GRUMMAN CORP. | CA | PFHxA | 136.8 ng/L | 6,214 |
| NORTH BAY VILLAGE, CITY OF | FL | 6:2 FTS | 135.7 ng/L | 8,317 |
| HIGHLAND WATER AUTHORITY | AL | PFBS | 134.3 ng/L | 3,963 |
| Commonwealth Utilities Corp (Saipan) | MP | PFPeA | 133.8 ng/L | - |
| NEW MARTINSVILLE | WV | PFOS | 121.8 ng/L | 5,272 |
| WEST ETOWAH WATER & FIRE PRO AUTHORITY | AL | PFBS | 120 ng/L | 6,900 |
| Stillwater | MN | PFBA | 118 ng/L | 19,462 |
| SHELBY COUNTY WATER SYSTEM | AL | PFBS | 113.5 ng/L | 40,101 |
| GLOBE CITY OF | AZ | PFBS | 113.3 ng/L | 7,536 |
| STERRETT-VANDIVER WATER SYSTEM | AL | PFBS | 110 ng/L | 3,252 |
| GREAT BEND, CITY OF | KS | PFPeA | 110 ng/L | 14,580 |
| SOUTHWOOD WATER SYSTEM | WA | PFPeA | 110 ng/L | 64,155 |
| ARTESIAN WATER COMPANY | DE | PFPeA | 106 ng/L | 231,114 |
| YESHIVA FARM SETTLEMENT | NY | PFPeA | 106 ng/L | 300 |
| CITY OF LEAGUE CITY | TX | PFPeA | 102 ng/L | 149,557 |
| LAURENS COUNTY W&S COMM (SC3020001) | SC | HFPO-DA | 95.8 ng/L | 44,866 |
| PELL CITY WATER WORKS | AL | PFBS | 94 ng/L | 17,586 |
| FLOYD COUNTY | GA | PFBS | 93.3 ng/L | 46,143 |
| RAYNHAM CENTER WATER DISTRICT | MA | PFOA | 92 ng/L | 10,964 |
| CAERNARVON TWP AUTH | PA | PFHxA | 92 ng/L | 4,245 |