Menu

EWG's Tap Water Database

Donate

Louisiana

  • 992 Utilities

  • Serving: 4,831,000

  • Data available: 2010-2015

  • Contaminants Found: 101

 

EWG's drinking water quality report for Louisiana shows results of tests conducted by the water utilities in Louisiana and provided to EWG by the Louisiana Department of Health and Hospitals.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Louisiana serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.

Large utilities in Louisiana

UtilityLocationPeople
Served
Assumption Parish Waterworks District 1Napoleonville, LA22,862
Barksdale Afb Water SystemBarksdale Afb, LA13,000
Bastrop Water SystemBastrop, LA19,686
Baton Rouge Water CompanyBaton Rouge, LA502,383
Bayou Liberty Water AssociationSlidell, LA10,500
Beauregard Water Works District #3Longville, LA21,000
Belle Chasse Water DistrictBelle Chasse, LA17,391
Blanchard Water SystemBlanchard, LA12,645
Bossier City Water SystemBossier City, LA68,094
Buckeye Water District 50Deville, LA10,287
Calcasieu Parish WW District 9 CarlyssSulphur, LA12,258
Calcasieu Parish WW District No 1Lake Charles, LA20,837
Cecilia Water CorporationCecilia, LA11,028
City of Abbeville Water SystemAbbeville, LA15,450
City of Alexandria Water SystemAlexandria, LA54,782
City of Baker Water SystemBaker, LA13,855
City of Bogalusa Water SystemBogalusa, LA14,000
City of Denham Springs Water SystemDenham Springs, LA25,725
City of Deridder Water SystemDeridder, LA13,560
City of Gonzales Water SystemGonzales, LA10,086
City of Hammond Water SystemHammond, LA21,135
City of Jennings Water SystemJennings, LA10,300
City of Lake Charles Water SystemLake Charles, LA80,000
City of Opelousas Water SystemOpelousas, LA17,561
City of Pineville Water SystemPineville, LA20,315
City of Plaquemine Water SystemPlaquemine, LA14,043
Covington Water SupplyCovington, LA14,700
Crowley Water System (LAWCO)Baton Rouge, LA19,000
East Jefferson Waterworks District 1Jefferson, LA243,782
Eden Isles Water SupplySlidell, LA10,155
More

Utilities that accumulated/accrued the most violation points as of January to March 2017 in Louisiana

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
Village of Calvin Water SystemCalvin, LA591134
Town of Ferriday Water SystemFerriday, LA4,193107
Oil City Water WorksOil City, LA2,11599
Ozone Pine SubdivisionSlidell, LA7598
River Ridge Estates Water SystemBreaux Bridge, LA7595
Tesi Lakeview EstatesBaton Rouge, LA8185
Litroe Water SystemMarion, LA36983
Point Wilhite WsDownsville, LA1,95082
Concord Water SystemMarion, LA42681
Cadeville Water DistrictWest Monroe, LA3,15080
Village of Georgetown Water SupplyGeorgetown, LA30279
Belmont Waterworks Inc.Belmont, LA2,80578
Sardis Water SystemFarmerville, LA1,40476
North Lake St. John Water SystemGilbert, LA9076
Dubach Water SystemDubach, LA1,21876
Fairview Union Water SystemCampti, LA2,20575
Ebarb Wwks District # 1 - N Ebarb/belmontZwolle, LA45073
Jones Mcginty Water SystemJones, LA80171
Union Parish Waterworks District 1Farmerville, LA1,62671
Linville-haile Water SystemMarion, LA1,63571
Holmesville Water SystemDownsville, LA1,84570
Vixen Water System WestWest Monroe, LA28870
Lake St. John Waterworks District 1Ferriday, LA1,92070
Hammock Water SupplyGilbert, LA90070
Central Bossier Water SystemPlain Dealing, LA2,55470
Wards Chapel Water SystemFarmerville, LA1,35067
Hudson Gaars Mill Water SystemSikes, LA66066
Town of Plain Dealing Water SystemPlain Dealing, LA2,73365
Marion Water SystemMarion, LA1,14665
Bobs ApartmentsSlidell, LA8765

Large utilities that accumulated/accrued the most violation points as of January to March 2017 in Louisiana

The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.

UtilityLocationPeople
Served
Violation
Points
West Monroe Water SystemWest Monroe, LA15,93015
City of Abbeville Water SystemAbbeville, LA15,45015
City of Baker Water SystemBaker, LA13,8556
Water Works District #1 of VermilionMaurice, LA21,3005
Assumption Parish Waterworks District 1Napoleonville, LA22,8625
Village of Parks Water SystemParks, LA11,6823
Slidell Water SupplySlidell, LA38,6122
Eden Isles Water SupplySlidell, LA10,1551
Ward II Water DistrictDenhams Springs, LA58,5601
Thibodaux WaterworksThibodaux, LA15,8101
Natchitoches Water SystemNatchitoches, LA30,0001
Morgan City Water SystemMorgan City, LA12,7031
Belle Chasse Water DistrictBelle Chasse, LA17,3911
Schriever Water Treatment Service AreaHouma, LA97,1521
Village Water SystemPrinceton, LA10,5751
West Baton Rouge Water Works District 2Port Allen, LA13,4371
City of Opelousas Water SystemOpelousas, LA17,5611
Minden Water SystemMinden, LA16,9501

Contaminants found in Louisiana above health guidelines

Found above health guidelinesFound
Contaminant# of UtilitiesPeople Served# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
7184,402,1267404,453,268

Chloroform
6223,451,5886883,684,657

Bromodichloromethane
6663,082,8286703,088,525

Dichloroacetic acid
4533,020,7894993,226,699

Dibromochloromethane
6232,965,1546503,038,338

Chromium (hexavalent)
1042,426,1241313,257,369

Trichloroacetic acid
4432,413,1694623,100,944

Arsenic
1161,517,9171161,517,917

Radium-226
921,220,7961011,243,022

Chlorate
28954,161862,150,872

Uranium
30389,952891,595,560

Bromoform
137378,5373901,742,719

Radium-228
81377,99381377,993

Manganese
45239,6632732,020,193

Aluminum
10228,494851,378,044

1,2,3-Trichloropropane
258,884258,884

Tetrachloroethylene (perchloroethylene)
119,686119,686

Barium
918,6513092,563,769

Cadmium
717,954717,954

Carbon tetrachloride
511,671511,671

Di(2-ethylhexyl) phthalate
410,758651,168,468

1,2-Dichloroethane
36,75836,758

Atrazine
36,3036271,669

Glyphosate
26,09326,093

1,2-Dibromo-3-chloropropane (DBCP)
44,13644,136

Chloromethane
146221178,228

Carbofuran
13061306

Contaminants found in Louisiana above legal limits

Contaminant# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
6177,753

Haloacetic acids (HAA5)
1211,543

Arsenic
31,056