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EWG's Tap Water Database

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Iowa

  • 1,091 Utilities

  • Serving: 2,771,000

  • Data available: 2010-2015

  • Contaminants Found: 89

 

EWG's drinking water quality report for Iowa shows results of tests conducted by the water utilities in Iowa and provided to EWG by the Iowa Department of Natural Resources.

LARGE UTILITIES
ALL UTILITIES WITH VIOLATIONS
LARGE UTILITIES WITH VIOLATIONS

Below are utilities in Iowa 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 Iowa

UtilityLocationPeople
Served
Altoona Water SupplyAltoona, IA14,541
Ames Water Treatment PlantAmes, IA50,029
Boone Water WorksBoone, IA12,909
Burlington Municipal WaterworksBurlington, IA25,619
Carroll Municipal Water SupplyCarroll, IA10,103
Cedar Falls Municipal Water UtilitiesCedar Falls, IA39,260
Cedar Rapids Water DepartmentCedar Rapids, IA128,201
Central IA Water Assn (Waverly)Newton, IA34,245
City of AnkenyAnkeny, IA54,598
Clive Water DepartmentClive, IA15,447
Coralville Muni Water SystemCoralville, IA18,907
Council Bluffs Water WorksCouncil Bluffs, IA63,795
Des Moines Water WorksDes Moines, IA233,020
Dubuque Water WorksDubuque, IA57,637
Fort Dodge Water SupplyFort Dodge, IA25,206
Ft Madison Muni Water WorksFort Madison, IA11,378
Indianola Water SupplyIndianola, IA14,782
Iowa City Water DepartmentIowa City, IA63,265
Iowa-American Water Co-Clinton DistrictClinton, IA26,885
Iowa-American Water Company - DavenportDavenport, IA137,201
ISUAmes, IA31,453
Johnston Municipal Water SupplyJohnston, IA17,306
Keokuk Municipal Water WorksKeokuk, IA10,780
Marion Municipal Water DepartmentMarion, IA34,610
Marshalltown Water WorksMarshalltown, IA27,612
Mason City Water DepartmentMason City, IA28,079
Muscatine Power & WaterMuscatine, IA24,386
Newton Water SupplyNewton, IA16,262
North Liberty Water SupplyNorth Liberty, IA13,386
Oskaloosa Municipal Water DepartmentOskaloosa, IA12,173
More

Utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in Iowa

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
Gallery Acres WestSolon, IA4390
Woodland Ridge SubdivisionIowa City, IA5035
Bellevue Municipal UtilitiesBellevue, IA2,19120
Louisa Courts Mobile Home Park & SalesMuscatine, IA12115
Macbride Pointe Second AdditionSolon, IA2515
Ryan Water SupplyRyan, IA36115
Keystone Water SupplyKeystone, IA62210
Bristow Municipal Water SupplyBristow, IA16010
Woodland Wapello Mobile Home ParkMuscatine, IA1266
Brighton Municipal Water SupplyBrighton, IA6526
Hillsboro Water WorksHillsboro, IA2346
Sunset Hills Estates Part 2Kalona, IA455
Homestead Water SupplyHomestead, IA1485
Ainsworth Water WorksAinsworth, IA5675
Iowa City Mobile Home Park LLCCedaredge, IA2805
Mallard Water SupplyMallard, IA2775
Minden Water SupplyMinden, IA5995
New Market Water SupplyNew Market, IA4155
Sunrise Village Mobile Home ParkIowa City, IA3405
Randolph Water WorksRandolph, IA1685
Elkhart Water SupplyAnkeny, IA6835
Marcus Water SupplyMarcus, IA1,1255
Fredericksburg Water SupplyFredericksburg, IA9315
Cedar River Trailer ParkColumbus Jct, IA535
River Point Ridge Homeowners Assoc Inc.Bellevue, IA553
Hickory Hills Subdivision #2Davenport, IA1812
Elberon Water SupplyElberon, IA1962
Louisa County Law Enforcement CenterMuscatine, IA462
Oak ValleyToddville, IA1542
Dedham Water SupplyDedham, IA2661

Large utilities that accumulated/accrued the most violation points as of October 2015 to September 2018 in Iowa

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
Warren Water DistrictIndianola, IA18,0451

Contaminants found in Iowa above health guidelines

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

Total trihalomethanes (TTHMs)
5592,390,0265612,471,508

Chloroform
5432,357,0875442,382,293

Bromodichloromethane
5292,324,8855292,324,885

Dichloroacetic acid
4872,213,1354912,240,695

Dibromochloromethane
4832,133,2314832,133,231

Trichloroacetic acid
4391,714,5674591,957,866

Chromium (hexavalent)
1681,660,7342051,753,739

Nitrate
4201,660,3294781,782,765

Radium-228
4871,350,4764871,350,476

Bromoform
2411,272,5272661,511,949

Radium-226
459744,025459744,025

Atrazine
33268,83959971,217

Arsenic
58248,64058248,640

Chlorite
25217,74825217,748

Chlorate
18184,6791651,360,244

Tetrachloroethylene (perchloroethylene)
7125,5177125,517

Trichloroethylene
5119,3715119,371

Strontium
584,6322221,950,730

Uranium
2842,6702842,670

1,4-Dioxane
411,51167710,070

Chloromethane
48,70099,410

Manganese
13,93138,994

Thallium
22,40922,409

Styrene
21,97121,971

p-Dichlorobenzene
11,28421,950

1,2-Dichloroethane
18421842

Vinyl chloride
15021502

Barium
135098213,313

Selenium
126657120,380

Di(2-ethylhexyl) phthalate
1253173

Contaminants found in Iowa above legal limits

Contaminant# of UtilitiesPeople Served

Radium, combined (-226 & -228)
910,307

Haloacetic acids (HAA5)
35,963

Total trihalomethanes (TTHMs)
31,914

Arsenic
274