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

Utility	Location	People Served
Altoona Water Supply	Altoona, IA	14,541
Ames Water Treatment Plant	Ames, IA	50,029
Boone Water Works	Boone, IA	12,909
Burlington Municipal Waterworks	Burlington, IA	25,619
Carroll Municipal Water Supply	Carroll, IA	10,103
Cedar Falls Municipal Water Utilities	Cedar Falls, IA	39,260
Cedar Rapids Water Department	Cedar Rapids, IA	128,201
Central IA Water Assn (Waverly)	Newton, IA	34,245
City of Ankeny	Ankeny, IA	54,598
Clive Water Department	Clive, IA	15,447
Coralville Muni Water System	Coralville, IA	18,907
Council Bluffs Water Works	Council Bluffs, IA	63,795
Des Moines Water Works	Des Moines, IA	233,020
Dubuque Water Works	Dubuque, IA	57,637
Fort Dodge Water Supply	Fort Dodge, IA	25,206
Ft Madison Muni Water Works	Fort Madison, IA	11,378
Indianola Water Supply	Indianola, IA	14,782
Iowa City Water Department	Iowa City, IA	63,265
Iowa-American Water Co-Clinton District	Clinton, IA	26,885
Iowa-American Water Company - Davenport	Davenport, IA	137,201
ISU	Ames, IA	31,453
Johnston Municipal Water Supply	Johnston, IA	17,306
Keokuk Municipal Water Works	Keokuk, IA	10,780
Marion Municipal Water Department	Marion, IA	34,610
Marshalltown Water Works	Marshalltown, IA	27,612
Mason City Water Department	Mason City, IA	28,079
Muscatine Power & Water	Muscatine, IA	24,386
Newton Water Supply	Newton, IA	16,262
North Liberty Water Supply	North Liberty, IA	13,386
Oskaloosa Municipal Water Department	Oskaloosa, IA	12,173

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

Utility	Location	People Served	Violation Points
Gallery Acres West	Solon, IA	43	85
Lacina Meadows Residential Subdivision	Iowa City, IA	42	82
Woodland Ridge Subdivision	Iowa City, IA	50	20
Greenfield Municipal Utilities	Greenfield, IA	1,982	10
Rural Water System #1	Hospers, IA	3,237	10
Iowa City Regency Mobile Home Community	Lone Tree, IA	700	10
Wheatland City Water Supply	Wheatland, IA	764	10
Boone Water Works	Boone, IA	12,909	10
Okoboji Camp Owners Cooperative	Sibley, IA	103	10
Bristow Municipal Water Supply	Bristow, IA	160	10
Des Moines Water Works	Des Moines, IA	233,020	10
Zearing Water Department	Zearing, IA	554	6
Brighton Municipal Water Supply	Brighton, IA	652	5
Kammerer Mobile Home Park	Muscatine, IA	100	5
Xenia Rural Water District (madrid)	Bouton, IA	1,493	5
Hickory Hills Subdivision #1	Davenport, IA	75	5
North End Mobile Home Park	Dubuque, IA	78	5
Lime Springs Water Supply	Lime Springs, IA	505	5
Osceola Rural Water System-south	May City, IA	1,990	5
Dedham Water Supply	Dedham, IA	266	5
Fredericksburg Water Supply	Fredericksburg, IA	931	5
New Market Water Supply	New Market, IA	415	5
Corwith Water Supply	Corwith, IA	309	5
Sunset Hills Estates Part 2	Kalona, IA	45	5
Sirwa - Corning/brooks	Creston, IA	2,049	5
Woden Water Supply	Woden, IA	229	5
Vern Acres (oliphant Addition)	Toddville, IA	150	5
Hilltop Road Association #1	Muscatine, IA	45	5
D & M Addition	Toddville, IA	80	4
Elberon Water Supply	Elberon, IA	196	4

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

Utility	Location	People Served	Violation Points
Boone Water Works	Boone, IA	12,909	10
Des Moines Water Works	Des Moines, IA	233,020	10
Cedar Rapids Water Department	Cedar Rapids, IA	128,201	1

Contaminants found in Iowa above health guidelines

	Found above health guidelines			Found
Contaminant	# of Utilities	People Served		# of Utilities	People Served
Total trihalomethanes (TTHMs)		559	2,390,026			559	2,390,026
Chloroform		507	2,300,632			544	2,382,293
Dichloroacetic acid		487	2,213,135			491	2,240,695
Bromodichloromethane		527	2,195,459			529	2,324,885
Dibromochloromethane		455	1,925,529			483	2,133,231
Trichloroacetic acid		439	1,714,567			459	1,957,866
Chromium (hexavalent)		168	1,660,734			205	1,753,739
Radium-228		487	1,350,476			487	1,350,476
Radium-226		459	744,025			459	744,025
Nitrate		71	687,827			478	1,782,765
Atrazine		32	264,518			59	971,217
Arsenic		58	248,640			58	248,640
Chlorite		25	217,748			25	217,748
Chlorate		18	184,679			165	1,360,244
Bromoform		22	150,565			266	1,511,949
Tetrachloroethylene (perchloroethylene)		7	125,517			7	125,517
Trichloroethylene		5	119,371			5	119,371
Strontium		5	84,632			222	1,950,730
Uranium		28	42,670			28	42,670
1,4-Dioxane		4	11,511			67	710,070
Chloromethane		4	8,700			9	9,410
Manganese		1	3,931			3	8,994
Thallium		2	2,409			2	2,409
Styrene		2	1,971			2	1,971
p-Dichlorobenzene		1	1,284			5	67,797
1,2-Dichloroethane		1	842			1	842
Vinyl chloride		1	502			1	502
Barium		1	350			98	213,313
Selenium		1	266			57	120,380
Di(2-ethylhexyl) phthalate		1	25			3	173

Contaminants found in Iowa above legal limits

Contaminant	People Served
Radium, combined (-226 & -228)	9	10,307
Haloacetic acids (HAA5)	3	5,963
Total trihalomethanes (TTHMs)	3	1,914
Arsenic	2	74

Iowa

1,091 Utilities

Serving: 2,771,000

Data available: 2010-2015

Contaminants Found: 89

Large utilities in Iowa

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

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

Contaminants found in Iowa above health guidelines

Contaminants found in Iowa above legal limits