Tapcensus

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.

Health effects: Protects against enteric viruses, which can contaminate groundwater via cracked well casings, failing septic systems, or animal waste. Viruses persist longer in groundwater than in surface water. Hepatitis A and norovirus are the primary pathogens of concern.

Systems with a Groundwater Rule (GWR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Social Springs Water System South
Red River County
576 1 1
Chestnut-Readhimer Water System
Natchitoches County
564 4 3
Central Water System
Webster County
558 6 5
House of Raeford
Bienville County
500 4 4
Olivia Inn
St. Tammany County
500 2 2
The Inn at la Provence
St. Tammany County
500 2 2
ST Tam Parish Northlake Behavioral
St. Tammany County
480 1 1
Village of Hodge Water System
Jackson County
479 1 1
Serenity Ponds RV Resort Water System
Calcasieu County
450 1 0
Magnolia-Spring Creek Subdivision
Jackson County
444 3 1
Bear Creek Water System
Jackson County
435 2 2
Village of North Hodge Water System
Jackson County
429 2 1
Oak Villa Mobile Home Community
St. Tammany County
420 3 3
Village of Angie Water Supply
Washington County
400 3 2
Port of West ST Mary
St. Mary County
400 2 1
Old Saline Community Water System
Bienville County
390 3 2
Wheeling Water System INC
Winn County
387 2 1
Village of East Hodge Water System
Jackson County
369 5 4
Litroe Water System
Union County
369 4 2
Village of Georgetown Water Supply
Grant County
363 4 2
Village of Bienville Water System
Bienville County
360 3 2
Village of Bonita Water System
Morehouse County
360 5 3
Central Park Subdivision
St. Tammany County
342 4 4
Village of Eros Water System
Jackson County
318 4 3
Lucky Waterworks
Bienville County
315 5 3
Village of Rodessa Water System
Caddo County
312 3 1
Eagle Lake Mobile Home Park
St. Tammany County
300 3 3
Eco-Services Operations BR Plant
East Baton Rouge County
300 1 1
Magnolia-Brigas Estates
Calcasieu County
294 1 1
ST Marys Water System
Bossier County
294 6 4
Chases RV Park Water System
Iberia County
261 2 2
Palmetto Water Works INC
Webster County
255 5 4
Cash Point Landing
Bossier County
231 6 4
ST Tam Parish Ben Thomas RD
St. Tammany County
220 1 1
Evergreen Estates Water System
Caddo County
213 6 3
Foundry 51 Steakhouse and Bar
Tangipahoa County
200 2 2
Texas Pelican Complex
Calcasieu County
200 1 1
Zona Atv Concession Stand
Washington County
200 3 3
Midway Water System INC
St. Landry County
192 6 6
Lafayette MHP LLC
Lafayette County
188 4 3
G & J Mobile Home Estates Water System
Lafayette County
186 4 4
Ryans Family Grocery
Ascension County
185 1 1
Southgate MHP Water System
Bossier County
177 7 5
West Yellow Water MH Park
Tangipahoa County
174 3 3
Cajun Mobile Home Park Water System
Lafayette County
168 4 4
Bodcau Water Works
Bossier County
159 3 2
Bcc Detention Center WS
Richland County
150 5 3
Beacon Country Store Water System
Calcasieu County
150 2 2
OM Pearl River Oil
St. Tammany County
150 2 2
ST Martin Industrial Park Water System
St. Martin County
150 4 1
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.