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EWG's Tap Water Database — 2019 UPDATE

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Louisiana

  • 980 Utilities

  • Serving: 4,964,000

  • Data available: 2012-2017

  • Contaminants Found: 88

 

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, LA17,058
Baton Rouge Water CompanyBaton Rouge, LA527,067
Bayou Liberty Water AssociationSlidell, LA10,500
Beauregard Water Works District #3Longville, LA21,600
Belle Chasse Water DistrictBelle Chasse, LA17,391
Blanchard Water SystemBlanchard, LA12,900
Bossier City Water SystemBossier City, LA68,094
Brownville Water SystemWest Monroe, LA10,872
Buckeye Water District 50Deville, LA10,287
Calcasieu Parish WW District 9 CarlyssSulphur, LA13,500
Calcasieu Parish WW District No 1Lake Charles, LA20,837
Cecilia Water CorporationCecilia, LA11,529
City of Abbeville Water SystemAbbeville, LA15,012
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, LA10,365
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
City of Youngsville Purchase WsYoungsville, LA14,259
Covington Water SupplyCovington, LA14,700
Crowley Water System (LAWCO)Baton Rouge, LA19,000
More

Utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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
S and J Rv ParkSlidell, LA87148
Oil City Water WorksOil City, LA2,199136
Ozone Pine SubdivisionSlidell, LA75129
Union Parish Waterworks District 1Farmerville, LA1,626125
Vixen Water System WestChatham, LA288122
Fairview Union Water SystemCampti, LA2,205118
Jones Mcginty Water SystemJones, LA801107
River Ridge Estates Water SystemBreaux Bridge, LA75106
Town of Plain Dealing Water SystemPlain Dealing, LA2,733104
Ebarb Wwks District # 1 - Aimwell AreaZwolle, LA6,186104
Town of Tullos Water SystemTullos, LA792101
Randolph Water SystemJunction City, LA222101
Lake St. John Waterworks District 1Ferriday, LA1,92099
Village of Sikes Water SystemSikes, LA69099
Marion Water SystemMarion, LA1,14698
Downsville Water SystemDownsville, LA21694
Chatham Water SystemChatham, LA1,13794
Joyce Water SupplyCovington, LA47489
Franklin Water SupplyFranklin, LA8,50087
Point Wilhite WsDownsville, LA1,95084
Clearview Mobile Home ParkLake Charles, LA14183
Holmesville Water SystemDownsville, LA2,31082
Cameron Parish Water Works District 9Grand Chenier, LA1,37682
Red Hill Waterworks Inc.Georgetown, LA1,87281
Town of Ridgecrest Water SupplyRidgecrest, LA68380
Miles Mobile Home ParkLake Charles, LA5780
Sabine Parish Water District 1Many, LA6,14179
Country Estates Water System NorthWest Monroe, LA59778
Town of Clayton Water SystemClayton, LA72376
Indian Village Water SystemCalhoun, LA1,68673

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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
Assumption Parish Waterworks District 1Napoleonville, LA22,86242
St Bernard Parish WaterworksChalmette, LA44,00027
City of Abbeville Water SystemAbbeville, LA15,01222
City of Alexandria Water SystemAlexandria, LA54,78221
Barksdale Afb Water SystemBarksdale Afb, LA13,00021
Belle Chasse Water DistrictBelle Chasse, LA17,39116
Bastrop Water SystemBastrop, LA17,05815
Gretna WaterworksGretna, LA17,80211
Blanchard Water SystemBlanchard, LA12,90010
Tangipahoa Parish Water DistrictHammond, LA58,36510
Zachary Water SystemZachary, LA23,46910
Lakeshore Swartz Water SystemWest Monroe, LA11,33010
Village of Parks Water SystemParks, LA12,05010
City of Opelousas Water SystemOpelousas, LA17,5619
Houma Water Treatment Service AreaHouma, LA31,5608
St John Water District 3Laplace, LA29,8727
Water Works District #1 of VermilionMaurice, LA21,3006
City of Plaquemine Water SystemPlaquemine, LA14,0435
Mandeville Water SupplyMandeville, LA13,2095
City of Jennings Water SystemJennings, LA10,3655
Calcasieu Parish WW District 9 CarlyssSulphur, LA13,5005
Walker Water SystemWalker, LA13,5305
City of Baker Water SystemBaker, LA13,8554
Schriever Water Treatment Service AreaHouma, LA97,1524
City of Deridder Water SystemDeridder, LA13,5602
Thibodaux WaterworksThibodaux, LA15,8101
Bayou Liberty Water AssociationSlidell, LA10,5001
New Orleans Carrollton WaterworksNew Orleans, LA291,0441

Contaminants found in Louisiana above health guidelines

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

Total trihalomethanes (TTHMs)
9064,895,3539194,936,714

Chloroform
8284,739,2918994,909,235

Dichloroacetic acid
6364,316,1098644,835,168

Bromodichloromethane
8614,244,6028624,244,762

Dibromochloromethane
8314,136,5168424,237,088

Arsenic
4213,341,3524113,337,748

Radium, combined (-226 & -228)
5353,231,6695333,488,742

Trichloroacetic acid
5803,216,8437604,628,219

Chromium (hexavalent)
992,406,8241173,261,420

Bromoform
4551,867,6126243,407,453

Nitrate and nitrite
1511,614,4966834,402,610

Uranium
23943,196731,369,847

Chlorate
28930,575762,130,706

Manganese
192926,2328313,852,889

Aluminum
18310,5122813,330,877

Nitrate
5221,31610229,719

Atrazine
692,68511658,905

Carbon tetrachloride
990,359990,359

Cadmium
1653,4181653,418

Thallium
636,594636,594

Barium
1434,3267534,489,360

Benzo[a]pyrene
1031,67816762,028

Tetrachloroethylene (perchloroethylene)
322,060322,060

Di(2-ethylhexyl) phthalate
415,9252042,274,134

1,2-Dichloroethane
411,7346258,966

Chloromethane
611,62722165,886

Antimony
110,87215113,351

Glyphosate
26,22836,339

Hexachlorobenzene (HCB)
34,13934,139

1,2-Dibromo-3-chloropropane (DBCP)
32,94632,946

Beryllium
11,2941786,295

Carbofuran
13065533,655

Vinyl chloride
11601160

Contaminants found in Louisiana above legal limits

Contaminant# of UtilitiesPeople Served

Total trihalomethanes (TTHMs)
78109,053

Arsenic
1042,912

Radium, combined (-226 & -228)
322,419

Haloacetic acids (HAA5)
1719,886