Groundwater Rule (GWR) violations in Louisiana
250 active public water systems in Louisiana had a Groundwater Rule (GWR) violation in the past three years, 250 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
West Grant Water Association Grant County |
3,324 | 5 | 5 | |
|
Town of Coushatta Water System Red River County |
3,300 | 1 | 1 | |
|
Town of New Llano Water System Vernon County |
3,300 | 2 | 1 | |
|
Town of Independence Water System Tangipahoa County |
3,052 | 2 | 2 | |
|
Reddell Vidrine Water District Evangeline County |
2,952 | 5 | 1 | |
|
ST Tammany Water District 3 St. Tammany County |
2,920 | 3 | 3 | |
|
Central Claiborne Water System Claiborne County |
2,859 | 1 | 1 | |
|
Sligo Water System Incorporated Bossier County |
2,850 | 4 | 1 | |
|
Egan Water Corporation NO 2 Acadia County |
2,835 | 4 | 2 | |
|
Belmont Waterworks INC Sabine County |
2,805 | 5 | 4 | |
|
Town of Oberlin Water System Allen County |
2,730 | 2 | 0 | |
|
Evangeline WW District 1 Pine Prairie Evangeline County |
2,598 | 4 | 2 | |
|
Prairie Road Water District Ouachita County |
2,598 | 3 | 1 | |
|
Town of Colfax Grant County |
2,552 | 1 | 1 | |
|
Town of White Castle Water System Iberville County |
2,550 | 5 | 4 | |
|
Nebo Water System INC LaSalle County |
2,460 | 2 | 2 | |
|
Town of Delcambre Water System Vermilion County |
2,457 | 3 | 2 | |
|
Town of Plain Dealing Water System Bossier County |
2,346 | 4 | 2 | |
|
Point Wilhite WS Union County |
2,292 | 4 | 2 | |
|
Town of Ringgold Water System Bienville County |
2,283 | 3 | 2 | |
|
Central Grant Water System Grant County |
2,250 | 3 | 2 | |
|
Town of Kentwood Water System Tangipahoa County |
2,205 | 2 | 1 | |
|
Pioneer Darnell Water System West Carroll County |
2,190 | 3 | 2 | |
|
Village of Palmetto Water System St. Landry County |
2,178 | 6 | 4 | |
|
Indian Village Water System Ouachita County |
2,082 | 2 | 1 | |
|
Town of Gueydan Water System Vermilion County |
2,016 | 4 | 2 | |
|
Weston Water System Jackson County |
1,980 | 2 | 1 | |
|
Village of Choudrant Water System Lincoln County |
1,950 | 2 | 1 | |
|
Town of Bernice Water System Union County |
1,863 | 5 | 2 | |
|
Fiske Union Water System West Carroll County |
1,830 | 1 | 1 | |
|
Ebarb Wwks Dist #1 North Ebarb Sabine County |
1,761 | 3 | 1 | |
|
Ward 3 Water System Morehouse County |
1,740 | 5 | 2 | |
|
Linville-Haile Water System Union County |
1,635 | 2 | 1 | |
|
Union Parish Waterworks District 1 Union County |
1,626 | 6 | 4 | |
|
Wards Chapel Water System Union County |
1,620 | 3 | 1 | |
|
Frost Town Water System Ouachita County |
1,551 | 1 | 1 | |
|
Town of Campti Water System Natchitoches County |
1,515 | 3 | 1 | |
|
Village of Anacoco Vernon County |
1,506 | 2 | 2 | |
|
Village of Grayson Water System Caldwell County |
1,461 | 5 | 2 | |
|
Germantown Water System Webster County |
1,410 | 4 | 2 | |
|
Sardis Water System Union County |
1,404 | 3 | 3 | |
|
Town of Cotton Valley Water System Webster County |
1,380 | 3 | 1 | |
|
Bayou Pierre Water System Red River County |
1,371 | 4 | 4 | |
|
Gulf Stream Manor Water System Calcasieu County |
1,368 | 6 | 4 | |
|
Zone 2 Water System Inc. Grant County |
1,344 | 4 | 4 | |
|
Village of Greensburg Water System St. Helena County |
1,340 | 3 | 1 | |
|
Town of ST Joseph Water System Tensas County |
1,332 | 5 | 4 | |
|
Veterans Administration Rapides County |
1,330 | 4 | 2 | |
|
Torbert Frisco Water Works Pointe Coupee County |
1,320 | 1 | 1 | |
|
Town of Melville Water System St. Landry County |
1,314 | 5 | 4 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Louisiana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.