Official PFAS Records
Louisiana PFAS Watchlist
Official EPA UCMR 5 PFAS monitoring records for public water systems in Louisiana. 47 water systems with qualifying official records.
Source retrieved: May 26, 2026 · EPA UCMR 5
Monitoring results are not compliance determinations. Missing records do not establish absence of PFAS. Methodology
Louisiana PFAS dataset — for journalists & researchers
Full state-level detection data with downloadable CSV, methodology, and citation formats.
47
Systems with records
137
Total records
137
Official detections
| Water System | Records | |
|---|---|---|
New Orleans Carrollton Water Works | 17 | View |
E Jefferson Ww District 1 | 7 | View |
Shreveport Water System | 3 | View |
W Jefferson Ww District 2 | 2 | View |
Schriever Water Treatment Service Area | 5 | View |
Lafourche Water District 1 | 5 | View |
Monroe Water System | 2 | View |
St Charles Parish Dept of Waterworks | 5 | View |
New Orleans Algiers Water Works | 6 | View |
Natchitoches Water System | 1 | View |
Assumption Parish Ww District 1 | 2 | View |
Belle Chasse Water District | 2 | View |
Gretna Waterworks | 1 | View |
City of Abbeville Water System | 1 | View |
City of Plaquemine Water System | 5 | View |
Village of Parks Water System | 4 | View |
Houma Water Treatment Service Area | 5 | View |
Village Water System | 1 | View |
Pointe Coupee Water Works District 1 | 1 | View |
St John Water District 1 | 1 | View |
Port Sulphur Water District | 3 | View |
Parish Utilities of Ascension | 6 | View |
Water & Sewer Commission 4 of St Mary | 2 | View |
Patterson Water System | 3 | View |
Franklin Water Supply | 1 | View |
Southwest Allen Ww District No 2 | 1 | View |
Town of Benton Water System | 1 | View |
St Tam Parish - Cross Gates Sd | 1 | View |
St James Water District 2 | 2 | View |
Mansfield Water System | 1 | View |
St Mary Water & Sewer Comm #3 | 2 | View |
Desoto Parish Water Works District 1 | 1 | View |
Intracoastal Water System West | 1 | View |
City of Vidalia Water System | 8 | View |
City of Jeanerette Water System | 1 | View |
South Toledo Bend Water District | 3 | View |
Town & Country Service | 2 | View |
Farmerville Water System | 5 | View |
St Mary Parish W&s #2 Bayou Vista | 3 | View |
Town of Greenwood Water System | 1 | View |
Town of Berwick | 2 | View |
Pinehill Waterworks District | 1 | View |
Rayville Water System | 1 | View |
Lutcher Waterworks | 2 | View |
Tensas Water District Association | 1 | View |
St John Water District 2 | 4 | View |
Gramercy Waterworks | 2 | View |
Source: EPA UCMR 5 Occurrence Data · Methodology