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

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 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.

Utility	Location	People Served	Violation Points
Village of Calvin Water System	Calvin, LA	591	134
Town of Ferriday Water System	Ferriday, LA	4,193	107
Oil City Water Works	Oil City, LA	2,115	99
Ozone Pine Subdivision	Slidell, LA	75	98
River Ridge Estates Water System	Breaux Bridge, LA	75	95
Tesi Lakeview Estates	Baton Rouge, LA	81	85
Litroe Water System	Marion, LA	369	83
Point Wilhite Ws	Downsville, LA	1,950	82
Concord Water System	Marion, LA	426	81
Cadeville Water District	West Monroe, LA	3,150	80
Village of Georgetown Water Supply	Georgetown, LA	302	79
Belmont Waterworks Inc.	Belmont, LA	2,805	78
Sardis Water System	Farmerville, LA	1,404	76
North Lake St. John Water System	Gilbert, LA	90	76
Dubach Water System	Dubach, LA	1,218	76
Fairview Union Water System	Campti, LA	2,205	75
Ebarb Wwks District # 1 - N Ebarb/belmont	Zwolle, LA	450	73
Jones Mcginty Water System	Jones, LA	801	71
Union Parish Waterworks District 1	Farmerville, LA	1,626	71
Linville-haile Water System	Marion, LA	1,635	71
Holmesville Water System	Downsville, LA	1,845	70
Vixen Water System West	West Monroe, LA	288	70
Lake St. John Waterworks District 1	Ferriday, LA	1,920	70
Hammock Water Supply	Gilbert, LA	900	70
Central Bossier Water System	Plain Dealing, LA	2,554	70
Wards Chapel Water System	Farmerville, LA	1,350	67
Hudson Gaars Mill Water System	Sikes, LA	660	66
Town of Plain Dealing Water System	Plain Dealing, LA	2,733	65
Marion Water System	Marion, LA	1,146	65
Bobs Apartments	Slidell, LA	87	65

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

Utility	Location	People Served	Violation Points
West Monroe Water System	West Monroe, LA	15,930	15
City of Abbeville Water System	Abbeville, LA	15,450	15
City of Baker Water System	Baker, LA	13,855	6
Water Works District #1 of Vermilion	Maurice, LA	21,300	5
Assumption Parish Waterworks District 1	Napoleonville, LA	22,862	5
Village of Parks Water System	Parks, LA	11,682	3
Slidell Water Supply	Slidell, LA	38,612	2
Eden Isles Water Supply	Slidell, LA	10,155	1
Ward II Water District	Denhams Springs, LA	58,560	1
Thibodaux Waterworks	Thibodaux, LA	15,810	1
Natchitoches Water System	Natchitoches, LA	30,000	1
Morgan City Water System	Morgan City, LA	12,703	1
Belle Chasse Water District	Belle Chasse, LA	17,391	1
Schriever Water Treatment Service Area	Houma, LA	97,152	1
Village Water System	Princeton, LA	10,575	1
West Baton Rouge Water Works District 2	Port Allen, LA	13,437	1
City of Opelousas Water System	Opelousas, LA	17,561	1
Minden Water System	Minden, LA	16,950	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)		718	4,402,126			740	4,453,268
Chloroform		622	3,451,588			688	3,684,657
Bromodichloromethane		666	3,082,828			670	3,088,525
Dichloroacetic acid		453	3,020,789			499	3,226,699
Dibromochloromethane		623	2,965,154			650	3,038,338
Chromium (hexavalent)		104	2,426,124			131	3,257,369
Trichloroacetic acid		443	2,413,169			462	3,100,944
Arsenic		116	1,517,917			116	1,517,917
Radium-226		92	1,220,796			101	1,243,022
Chlorate		28	954,161			86	2,150,872
Uranium		30	389,952			89	1,595,560
Bromoform		137	378,537			390	1,742,719
Radium-228		81	377,993			81	377,993
Manganese		45	239,663			273	2,020,193
Aluminum		10	228,494			85	1,378,044
1,2,3-Trichloropropane		2	58,884			2	58,884
Tetrachloroethylene (perchloroethylene)		1	19,686			1	19,686
Barium		9	18,651			309	2,563,769
Cadmium		7	17,954			7	17,954
Carbon tetrachloride		5	11,671			5	11,671
Di(2-ethylhexyl) phthalate		4	10,758			65	1,168,468
1,2-Dichloroethane		3	6,758			3	6,758
Atrazine		3	6,303			6	271,669
Glyphosate		2	6,093			2	6,093
1,2-Dibromo-3-chloropropane (DBCP)		4	4,136			4	4,136
Chloromethane		1	462			21	178,228
Carbofuran		1	306			1	306

Contaminants found in Louisiana above legal limits

Contaminant	People Served
Total trihalomethanes (TTHMs)	61	77,753
Haloacetic acids (HAA5)	12	11,543
Arsenic	3	1,056

Louisiana

992 Utilities

Serving: 4,831,000

Data available: 2010-2015

Contaminants Found: 101

Large utilities in Louisiana

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

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

Contaminants found in Louisiana above health guidelines

Contaminants found in Louisiana above legal limits