Tapcensus

All water systems in Louisiana

1,216 systems

SystemServesStatusRules violated, 3 yrUnresolved
MT Olive Waterworks District
Lincoln County
900 1 0
Pine Prairie Correctional Facility
Evangeline County
900 6 5
Village of Atlanta Water Supply
Winn County
900 1 1
Villages of Bocage Madisonville
St. Tammany County
894 0 0
Village of Estherwood Water System
Acadia County
891 0 0
Village of Lisbon Water System
Claiborne County
891 1 0
Mayfield Elementary School
St. Tammany County
890 3 3
East Central Bossier Water System
Bossier County
885 1 0
Pointe a la Hache Water System
Plaquemines County
882 3 1
Cameron Parish WW District 9
Cameron County
871 1 0
Village of Madisonville Water Supply
St. Tammany County
871 0 0
Spring Bayou Water Works District
Avoyelles County
864 1 1
Graphic Packaging International INC a
Ouachita County
850 0 0
Graphic Packaging International INC B
Ouachita County
850 1 1
Ward IV Water District
Evangeline County
849 1 1
Lake Ramsey
St. Tammany County
840 4 2
Pleasant Hills-Crossroads Water Systems
Winn County
840 4 0
Varnado Water Works Pine
Washington County
840 1 1
Ebenezer Water System
Jackson County
828 1 0
Magnolia-Jackson Square
Lafayette County
825 1 0
Magnolia-Money Hills Estates
St. Tammany County
825 0 0
Magnolia-River Park
St. Tammany County
822 0 0
Marathon Petroleum Company LLC
St. John the Baptist County
817 3 0
Creston Water System
Natchitoches County
801 1 0
Fellowship Water System
Lincoln County
795 2 2
Village of Tullos Water System
LaSalle County
792 3 1
Ebarb Wwks Dist # 1 N Ebarb/belmont
Sabine County
789 2 0
Magnolia-Western Utilities
Ouachita County
789 2 0
Village of Waterproof Water System
Tensas County
786 5 2
Village of Urania Water System
LaSalle County
784 0 0
Backwood Village Water System
Winn County
783 4 3
Cotton Plant Water System
Caldwell County
783 4 2
Morehouse Central WS
Morehouse County
780 1 0
Village of Mermentau Water System
Acadia County
780 0 0
Phillips 66 Lake Charles Refinery
Calcasieu County
770 0 0
Village of Tickfaw Water System
Tangipahoa County
764 1 0
Village of Hall Summit Water System
Red River County
756 0 0
Salem Water System
Union County
753 4 4
Lakeshore High School
St. Tammany County
750 1 0
Pitkin Water System
Vernon County
750 0 0
Shell Chemical Company
Ascension County
750 0 0
Sunny Times 4 LLC
St. Tammany County
750 2 2
Vixen Water System
Caldwell County
750 5 4
Village of Tangipahoa Water System
Tangipahoa County
748 4 3
Social Springs Water System North
Red River County
744 1 1
Village of Wilson Water System
East Feliciana County
744 4 2
Bob Community Waterworks
Grant County
732 1 0
Eros Community Water System
Jackson County
729 5 0
Pine Hill Water System
Claiborne County
729 0 0
Village of Hosston Water System
Caddo County
729 0 0
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.