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EWG's Tap Water Database — 2019 UPDATE

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Illinois

  • 1,750 Utilities

  • Serving: 13,079,000

  • Data available: 2012-2017

  • Contaminants Found: 85

 

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 April 2016 to March 2019 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
Triangle Mobile Home ParkAllegan, IL90107
Lynwood 3rd AdditionGeneseo, IL90100
Fox Lawn Utilities Company Inc.Yorkville, IL27387
SpartaSparta, IL4,85376
Fountain Valley Mobile Home ParkRantoul, IL37574
New Salem Public Water DistrictAdair, IL22570
Egyptian Water CompanySteelville, IL1,69555
ChesterfieldChesterfield, IL18052
Central Macoupin County Rural Water DistrictJerseyville, IL1,82545
CarlinvilleCarlinville, IL5,68541
RochelleRochelle, IL9,85040
Lake Williamson Christian CenterCarlinville, IL1,25040
CutlerCutler, IL55039
AtlantaAtlanta, IL1,64937
De LandDeland, IL47530
Valley View Subdivision (woodford)East Peoria, IL10029
Criswell Court Mobile Home ParkJoliet, IL14828
Holiday Shores SDEdwardsville, IL3,38728
Country Acres Mobile Home Park (la Salle County)Des Plaines, IL29526
LemontLemont, IL13,09826
Scottville Rural Water Company Inc.Palmyra, IL85022
MillstadtMillstadt, IL4,38022
Colonial Meadows Water CompanyBloomington, IL19022
RobbinsRobbins, IL6,63521
MortonMorton, IL17,00021
Eastmoreland Water Service AssociationJoliet, IL66321
Shawnee Valley Public Water DistrictWolf Lake, IL95220
Tritownship Water DistrictHighland, IL3,62018
GolcondaGolconda, IL67217
PalmyraPalmyra, IL85017

Large utilities that accumulated/accrued the most violation points as of April 2016 to March 2019 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
LemontLemont, IL13,09826
MortonMorton, IL17,00021
IL American-StreatorCreve Coeur, IL19,00011
CarbondaleCarbondale, IL25,59710
Crest HillCrest Hill, IL14,8899
OswegoOswego, IL25,8558
E J Water CorpDieterich, IL12,8967
LockportLockport, IL24,4665
Chicago HeightsChicago Heights, IL33,0724
Downers GroveDowners Grove, IL50,6164
BrookfieldBrookfield, IL19,0854
Calumet CityCalumet City, IL39,0714
GurneeGurnee, IL31,0003
LindenhurstLindenhurst, IL14,6323
East MolineEast Moline, IL20,5002
Mount ProspectMt Prospect, IL40,9042
De KalbDekalb, IL41,0002
BelvidereBelvidere, IL23,5001
RomeovilleRomeoville, IL50,0011
IL American - Homer TownshipCreve Coeur, IL18,8701
CrestwoodCrestwood, IL10,8231
WheelingWheeling, IL36,9441
TroyTroy, IL15,0001
Orland ParkOrland Park, IL55,6031
Hanover ParkHanover Park, IL38,2781
Forest ParkForest Park, IL15,6881
RantoulRantoul, IL13,0001
Des PlainesDes Plaines, IL58,7101
ShorewoodShorewood, IL15,7831
Oak ForestOak Forest, IL28,0511

Contaminants found in Illinois above health guidelines

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

Total trihalomethanes (TTHMs)
1,57512,809,0091,57512,809,009

Chloroform
1,46912,602,5751,49812,687,640

Bromodichloromethane
1,35512,591,6131,35512,591,613

Dibromochloromethane
1,26712,182,9161,27612,431,028

Trichloroacetic acid
1,06111,667,2861,10911,930,060

Dichloroacetic acid
1,15111,573,0101,20412,063,208

Radium, combined (-226 & -228)
1,45411,504,8931,3199,628,413

Nitrate
91110,797,2391,1379,863,400

Chromium (hexavalent)
56510,638,23154310,892,576

Nitrate and nitrite
7629,484,0228458,515,881

Arsenic
8433,313,7777853,231,725

Bromoform
4581,919,1395953,612,445

Atrazine
188545,483186798,330

Chlorate
61460,8542293,627,881

Chlorite
104381,17085360,038

1,4-Dioxane
22364,1701302,490,199

Manganese
68258,2218482,802,732

Bromate
19241,12618238,126

Strontium
11232,28353911,412,776

Tetrachloroethylene (perchloroethylene)
10231,28011232,000

Simazine
81213,70699242,508

Perfluorooctanoic acid (PFOA)
18153,01218153,012

Carbon tetrachloride
16105,9398249,625

Barium
3477,8781,44310,242,686

Trichloroethylene
437,6718217,094

Benzo[a]pyrene
437,451550,160

Cadmium
433,236433,236

Perfluorooctane sulfonate (PFOS)
227,393227,393

Uranium
527,3832867,461

Perfluorohexane sulfonate (PFHXS)
224,375224,375

Thallium
312,183312,183

Tritium
26,47226,472

Molybdenum
25,70541110,758,715

Aluminum
15,614212,364

Antimony
166021,564

Selenium
1221138585,364

Styrene
11202576

Contaminants found in Illinois above legal limits

Contaminant# of UtilitiesPeople Served

Radium, combined (-226 & -228)
85,575

Arsenic
84,297

Total trihalomethanes (TTHMs)
2681

Barium
1225