Tapcensus

All water systems in Louisiana

1,216 systems

SystemServesStatusRules violated, 3 yrUnresolved
Magnolia Plantation Water System INC
Vermilion County
8,769 1 0
City of Tallulah Water System
Madison County
8,601 6 3
Westwego Waterworks
Jefferson County
8,534 2 0
City of Patterson Water System
St. Mary County
8,456 2 0
Natchitoches Parish Wwks District 2
Natchitoches County
8,415 1 1
City of Franklin Water Supply
St. Mary County
8,325 5 2
Lewisburg Bellevue Water System
St. Landry County
8,325 0 0
Southwest Allen WW District NO 2
Allen County
8,106 1 1
ST Tam Parish Cross Gates SD
St. Tammany County
8,037 0 0
Town of Benton Water System
Bossier County
8,037 1 0
Magnolia-Greenleaves
St. Tammany County
8,031 0 0
North Franklin Water Works
Franklin County
7,989 2 1
City of Youngsville Water System
Lafayette County
7,956 0 0
Sabine Parish Water District 1
Sabine County
7,833 3 2
ST Mary Water & Sewer Comm #3
St. Mary County
7,828 1 0
City of Springhill Water System
Webster County
7,800 2 2
Lee Road Water Corporation
St. Tammany County
7,665 0 0
North Desoto Water System
De Soto County
7,608 1 0
City of Marksville Water System
Avoyelles County
7,593 0 0
City of Winnsboro Water System
Franklin County
7,518 4 2
ST James Water District 2
St. James County
7,513 0 0
City of Mansfield Water System
De Soto County
7,512 2 0
Gowc South Monroe WS
Ouachita County
7,335 0 0
Savoy Swords Water System INC
St. Landry County
7,326 1 0
Town of Albany Water System
Livingston County
7,305 0 0
City of St. Martinville Water System
St. Martin County
7,263 2 1
ST James Water District 1
St. James County
7,200 0 0
City of Winnfield Water System
Winn County
7,194 5 2
Desoto Parish Water Works District 1
De Soto County
7,173 3 0
Concordia Waterworks District 1
Concordia County
6,921 0 0
Houston River Waterworks District 11
Calcasieu County
6,915 1 0
Magnolia-Resolve Whisperwood
St. Tammany County
6,867 0 0
Calcasieu Parish WW District 8
Calcasieu County
6,834 0 0
Southeast Waterworks District 2
Vermilion County
6,810 0 0
City of Port Allen Water System
West Baton Rouge County
6,759 2 1
Ebarb Wwks Dist # 1 Aimwell Area
Sabine County
6,738 3 1
City of Pontchatoula Water System
Tangipahoa County
6,657 3 1
East Iberville Water System
Iberville County
6,657 0 0
Beauregard District NO 2 Ward NO 5
Beauregard County
6,613 0 0
City of Ville Platte Water System
Evangeline County
6,590 2 2
Intracoastal Water System West
Iberville County
6,489 2 0
Plaisance Water System
St. Landry County
6,465 1 0
East Central Vernon Water System
Vernon County
6,363 0 0
Louisiana State Penitentiary
West Feliciana County
6,362 1 0
Town of Vidalia Water System
Concordia County
6,354 2 0
Utilities INC Kingspoint Subdivision
St. Tammany County
6,351 0 0
Town of Jonesboro Water System
Jackson County
6,231 4 2
Cadeville Water District
Ouachita County
6,219 2 1
City of Jeanerette Water System
Iberia County
6,189 3 0
City of Oakdale Water System
Allen County
6,114 3 1
About this data

Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.

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.