Menu

EWG's Tap Water Database

Donate

Illinois

  • 1,737 Utilities

  • Serving: 13,082,000

  • Data available: 2010-2015

  • Contaminants Found: 94

 

EWG's drinking water quality report for Illinois shows results of tests conducted by the water utilities in Illinois and provided to EWG by the Illinois Environmental Protection Agency.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Illinois 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 Illinois

UtilityLocationPeople
Served
AddisonAddison, IL38,090
AlgonquinAlgonquin, IL33,000
AlsipAlsip, IL20,500
AntiochAntioch, IL13,724
Aqua Illinois - KankakeeKankakee, IL76,299
Aqua Illinois-Vermilion CountyDanville, IL38,000
Arlington HeightsArlington Heights, IL76,943
AuroraAurora, IL171,000
BarringtonBarrington, IL10,168
BartlettBartlett, IL41,442
BataviaBatavia, IL26,348
BellwoodBellwood, IL20,535
BelvidereBelvidere, IL23,500
BensenvilleBensenville, IL20,703
BerwynBerwyn, IL55,000
BethaltoBethalto, IL17,500
BloomingdaleBloomingdale, IL21,675
BloomingtonBloomington, IL75,975
Blue IslandBlue Island, IL23,463
BridgeviewBridgeview, IL15,500
BrookfieldBrookfield, IL19,085
Buffalo GroveBuffalo Grove, IL44,411
Burr RidgeBurr Ridge, IL11,259
Calumet CityCalumet City, IL39,071
CantonCanton, IL13,932
CarbondaleCarbondale, IL25,597
Carol StreamCarol Stream, IL40,438
CarpentersvilleCarpentersville, IL30,586
CaryCary, IL18,713
CaseyvilleCaseyville, IL12,337
More

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

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
MaeystownMaeystown, IL230160
Triangle Mobile Home ParkAllegan, IL9095
Lynwood 3rd AdditionGeneseo, IL9095
Fox Lawn Utilities Company Inc.Yorkville, IL27380
New Salem Public Water DistrictAdair, IL22555
ShannonShannon, IL75840
CambridgeCambridge, IL2,10820
Fountain Valley Mobile Home ParkRantoul, IL37520
RochelleRochelle, IL9,85020
Country Acres Mobile Home Park (la Salle County)Des Plaines, IL29520
BudaBuda, IL60016
Shawnee Valley Public Water DistrictWolf Lake, IL95215
CutlerCutler, IL55015
Morningside Mobile Estates Mobile Home ParkDekalb, IL7510
HampshireHampshire, IL2,99910
WeldonWeldon, IL45010
BroadlandsBroadlands, IL33010
SpartaSparta, IL4,85310
Wadsworth Oaks SubdivisionWadsworth, IL1776
Red BudRed Bud, IL3,4425
HinckleyHinckley, IL1,9945
OswegoOswego, IL25,8555
Geneseo Hills SubdivisionGeneseo, IL4805
Countryside Estates Mobile Home ParkWestchester, IL1585
RumaRuma, IL4505
White Oaks Estates Water Association Inc.Dixon, IL4005
Country Club Estates SubdivisionKewanee, IL635
EvansvilleEvansville, IL7405
NeogaNeoga, IL1,8545
GreenfieldGreenfield, IL1,2005

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

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
OswegoOswego, IL25,8555
Chicago HeightsChicago Heights, IL33,0722
North LakeNorthlake, IL11,8781
ShorewoodShorewood, IL15,7831
RomeovilleRomeoville, IL50,0011
WarrenvilleWarrenville, IL12,3101
Hanover ParkHanover Park, IL38,2781
St CharlesSt Charles, IL32,1901
Evergreen ParkEvergreen Park, IL20,8211
Oak LawnOak Lawn, IL55,1361
TroyTroy, IL15,0001
Calumet CityCalumet City, IL39,0711

Contaminants found in Illinois above health guidelines

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

Total trihalomethanes (TTHMs)
1,25812,631,9071,27612,671,080

Bromodichloromethane
1,13212,388,8061,13312,389,019

Chloroform
1,17112,360,0771,22012,524,518

Dibromochloromethane
1,00511,752,4481,05512,091,132

Trichloroacetic acid
88311,472,66488811,561,686

Dichloroacetic acid
89311,129,86190011,198,963

Radium-226
1,45411,107,0861,46511,118,653

Radium-228
1,42910,830,5841,43210,838,335

Chromium (hexavalent)
58110,713,46464211,264,077

Arsenic
6253,005,1676253,005,167

Chlorate
49456,4072723,769,304

Strontium
69398,8231,07512,359,890

1,4-Dioxane
19370,0161432,542,270

Chlorite
84369,48592388,540

Manganese
106340,1626793,098,915

Nitrate and nitrite
98302,6847898,669,922

Bromoform
56301,9043812,670,267

Atrazine
113291,017128478,974

Bromate
16217,85516217,855

Uranium
10217,77051830,520

Tetrachloroethylene (perchloroethylene)
9207,6259207,625

Nitrate
86184,6859999,756,243

Perfluorooctanoic acid (PFOA)
16151,68316151,683

Benzo[a]pyrene
344,401344,401

Vinyl chloride
536,730536,730

Barium
2435,4571,16810,683,242

Perfluorooctane sulfonate (PFOS)
126,443126,443

Perfluorohexane sulfonate (PFHXS)
224,480224,480

Molybdenum
48,19144510,870,523

Tritium
26,47226,472

Antimony
21,06821,068

Cadmium
29102910

Di(2-ethylhexyl) phthalate
2205440,969

Contaminants found in Illinois above legal limits

Contaminant# of UtilitiesPeople Served

Radium, combined (-226 & -228)
38683,201

Total trihalomethanes (TTHMs)
713,607

Nitrate and nitrite
67,803

Arsenic
107,109

Haloacetic acids (HAA5)
54,474

Barium
2705

Nitrate
1230