Louisiana

992 Utilities
Serving: 4,831,000
Data available: 2010-2015
Contaminants Found: 102

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

Utility	Location	People Served
Assumption Parish Waterworks District 1	Napoleonville, LA	22,862
Barksdale Afb Water System	Barksdale Afb, LA	13,000
Bastrop Water System	Bastrop, LA	19,686
Baton Rouge Water Company	Baton Rouge, LA	502,383
Bayou Liberty Water Association	Slidell, LA	10,500
Beauregard Water Works District #3	Longville, LA	21,000
Belle Chasse Water District	Belle Chasse, LA	17,391
Blanchard Water System	Blanchard, LA	12,645
Bossier City Water System	Bossier City, LA	68,094
Buckeye Water District 50	Deville, LA	10,287
Calcasieu Parish WW District 9 Carlyss	Sulphur, LA	12,258
Calcasieu Parish WW District No 1	Lake Charles, LA	20,837
Cecilia Water Corporation	Cecilia, LA	11,028
City of Abbeville Water System	Abbeville, LA	15,450
City of Alexandria Water System	Alexandria, LA	54,782
City of Baker Water System	Baker, LA	13,855
City of Bogalusa Water System	Bogalusa, LA	14,000
City of Denham Springs Water System	Denham Springs, LA	25,725
City of Deridder Water System	Deridder, LA	13,560
City of Gonzales Water System	Gonzales, LA	10,086
City of Hammond Water System	Hammond, LA	21,135
City of Jennings Water System	Jennings, LA	10,300
City of Lake Charles Water System	Lake Charles, LA	80,000
City of Opelousas Water System	Opelousas, LA	17,561
City of Pineville Water System	Pineville, LA	20,315
City of Plaquemine Water System	Plaquemine, LA	14,043
Covington Water Supply	Covington, LA	14,700
Crowley Water System (LAWCO)	Baton Rouge, LA	19,000
East Jefferson Waterworks District 1	Jefferson, LA	243,782
Eden Isles Water Supply	Slidell, LA	10,155

Utilities that accumulated/accrued the most violation points as of October 2014 to September 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.

Utility	Location	People Served	Violation Points
Village of Calvin Water System	Calvin, LA	591	150
Oil City Water Works	Oil City, LA	2,115	111
Ozone Pine Subdivision	Slidell, LA	75	101
Litroe Water System	Marion, LA	369	98
River Ridge Estates Water System	Breaux Bridge, LA	75	96
Sardis Water System	Farmerville, LA	1,404	88
Dubach Water System	Dubach, LA	1,218	87
Concord Water System	Marion, LA	426	86
Village of Georgetown Water Supply	Georgetown, LA	302	85
Point Wilhite Ws	Downsville, LA	1,950	85
Tesi Lakeview Estates	Baton Rouge, LA	81	85
Cadeville Water District	West Monroe, LA	3,150	83
Jones Mcginty Water System	Jones, LA	801	83
Fairview Union Water System	Campti, LA	2,205	83
Ebarb Wwks District # 1 - N Ebarb/belmont	Zwolle, LA	450	83
Linville-haile Water System	Marion, LA	1,635	82
North Lake St. John Water System	Gilbert, LA	90	82
Lake St. John Waterworks District 1	Ferriday, LA	1,920	81
Vixen Water System West	West Monroe, LA	288	81
Holmesville Water System	Downsville, LA	1,845	81
Union Parish Waterworks District 1	Farmerville, LA	1,626	78
Wards Chapel Water System	Farmerville, LA	1,350	77
Marion Water System	Marion, LA	1,146	75
Eros Water System	Eros, LA	345	75
Belmont Waterworks Inc.	Belmont, LA	2,805	73
Hudson Gaars Mill Water System	Sikes, LA	660	72
Village of Sikes Water System	Sikes, LA	690	70
Central Bossier Water System	Plain Dealing, LA	2,554	70
Town of Plain Dealing Water System	Plain Dealing, LA	2,733	70
Randolph Water System	Junction City, LA	222	70

Large utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Louisiana

Utility	Location	People Served	Violation Points
West Monroe Water System	West Monroe, LA	15,930	20
City of Abbeville Water System	Abbeville, LA	15,450	15
City of Baker Water System	Baker, LA	13,855	9
Assumption Parish Waterworks District 1	Napoleonville, LA	22,862	6
Water Works District #1 of Vermilion	Maurice, LA	21,300	5
Village of Parks Water System	Parks, LA	11,682	4
Slidell Water Supply	Slidell, LA	38,612	2
Sulphur Water System	Sulphur, LA	20,410	1
Belle Chasse Water District	Belle Chasse, LA	17,391	1
Eden Isles Water Supply	Slidell, LA	10,155	1
Morgan City Water System	Morgan City, LA	12,703	1
City of Opelousas Water System	Opelousas, LA	17,561	1
Village Water System	Princeton, LA	10,575	1
Minden Water System	Minden, LA	16,950	1
Ward II Water District	Denhams Springs, LA	58,560	1
Thibodaux Waterworks	Thibodaux, LA	15,810	1

Contaminants found in Louisiana above health guidelines

	Found above health guidelines			Found
Contaminant	# of Utilities	People Served		# of Utilities	People Served
Total trihalomethanes (TTHMs)		722	4,418,098			745	4,471,445
Chloroform		685	3,836,440			696	3,888,903
Bromodichloromethane		678	3,295,369			678	3,295,369
Dibromochloromethane		655	3,240,072			656	3,243,894
Dichloroacetic acid		455	3,029,608			507	3,419,410
Trichloroacetic acid		445	2,427,145			469	3,304,067
Chromium (hexavalent)		104	2,426,124			131	3,257,369
Arsenic		132	1,741,462			132	1,741,462
Radium-226		115	1,458,799			124	1,481,025
Bromoform		367	1,400,077			396	1,858,165
Chlorate		28	954,161			86	2,150,872
Manganese		59	455,232			287	2,227,587
Uranium		31	399,489			93	1,621,120
Radium-228		83	379,205			83	379,205
Aluminum		10	228,494			85	1,387,713
1,2,3-Trichloropropane		2	58,884			2	58,884
Tetrachloroethylene (perchloroethylene)		1	19,686			1	19,686
Cadmium		8	19,223			8	19,223
Barium		9	18,651			323	2,765,888
Carbon tetrachloride		5	11,671			5	11,671
Di(2-ethylhexyl) phthalate		4	10,758			83	1,317,858
1,2-Dichloroethane		3	6,758			3	6,758
Atrazine		3	6,303			7	280,891
Glyphosate		2	6,093			2	6,093
1,2-Dibromo-3-chloropropane (DBCP)		4	4,136			4	4,136
Carbofuran		1	306			1	306

Contaminants found in Louisiana above legal limits

Contaminant	People Served
Total trihalomethanes (TTHMs)	59	75,727
Haloacetic acids (HAA5)	12	11,543
Arsenic	2	975

Louisiana

992 Utilities

Serving: 4,831,000

Data available: 2010-2015

Contaminants Found: 102

Large utilities in Louisiana

Utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Louisiana

Large utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Louisiana

Contaminants found in Louisiana above health guidelines

Contaminants found in Louisiana above legal limits