All water systems in Iowa
1,804 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wadena Water System Wadena · Fayette County |
209 | 0 | 0 | |
|
Washta Water Supply Washta · Cherokee County |
209 | 0 | 0 | |
|
Bellevue State PK North-Nelson Unit Bellevue · Jackson County |
208 | 0 | 0 | |
|
Dorothy Pecaut Nature Center Sioux City · Woodbury County |
208 | 0 | 0 | |
|
Joice Water Supply Joice · Worth County |
208 | 0 | 0 | |
|
YMCA Camp Wapsie Coggon · Linn County |
207 | 1 | 0 | |
|
Alvord Municipal Water Supply Alvord · Lyon County |
206 | 0 | 0 | |
|
Gardner Golf Course Marion · Linn County |
206 | 0 | 0 | |
|
Hanlontown Water Supply System Hanlontown · Worth County |
206 | 2 | 1 | |
|
Pine Lake Camps Eldora · Hardin County |
205 | 1 | 0 | |
|
Prairie Farms Dairy, Inc. Luana · Clayton County |
205 | 1 | 0 | |
|
Iowa-American Water-Dixon Dixon · Scott County |
204 | 0 | 0 | |
|
Romantix INC Council Bluffs · Mills County |
204 | 2 | 1 | |
|
Montour Water Supply Montour · Tama County |
203 | 0 | 0 | |
|
Volga Water Supply Volga City · Clayton County |
203 | 0 | 0 | |
|
Hillcrest Academy Kalona · Washington County |
202 | 3 | 0 | |
|
Melvin Waterworks Melvin · Osceola County |
202 | 0 | 0 | |
|
Onslow Water Supply Onslow · Jones County |
201 | 1 | 1 | |
|
Apostolic Christian Church West Bend · Kossuth County |
200 | 1 | 0 | |
|
Apostolic Church Anamosa · Jones County |
200 | 0 | 0 | |
|
Country Celebrations Event Center Sioux City · Plymouth County |
200 | 3 | 1 | |
|
Davenport Country Club Pleasant Valley · Scott County |
200 | 0 | 0 | |
|
Derby Grange Golf INC Dubuque · Dubuque County |
200 | 1 | 0 | |
|
Hagge Park-Sac County Conservation Board Sac City · Sac County |
200 | 0 | 0 | |
|
Hancock Water Supply Hancock · Pottawattamie County |
200 | 0 | 0 | |
|
Meadow Lake Campgrounds Tipton · Cedar County |
200 | 3 | 1 | |
|
Oakville Water Supply Oakville · Louisa County |
200 | 3 | 0 | |
|
Saint Peter & Paul Parish Sherril Sherrill · Dubuque County |
200 | 1 | 1 | |
|
ST Anns Catholic Church Long Grove · Scott County |
200 | 0 | 0 | |
|
Upper Deer Creek Church Kalona · Iowa County |
200 | 0 | 0 | |
|
Cottage Reserve Corporation Iowa City · Johnson County |
198 | 1 | 1 | |
|
Jamaica Water Supply Jamaica · Guthrie County |
195 | 3 | 0 | |
|
Sharon Bethel Church/school Kalona · Johnson County |
195 | 0 | 0 | |
|
Southland MHP Community Des Moines · Polk County |
195 | 0 | 0 | |
|
Lake Hendricks Park (east Well) Cresco · Howard County |
192 | 0 | 0 | |
|
Olds Municipal Water Dept Olds · Henry County |
192 | 0 | 0 | |
|
Randolph Water Works Randolph · Fremont County |
192 | 2 | 0 | |
|
Westgate Water Supply Westgate · Fayette County |
192 | 0 | 0 | |
|
Camp Bear Creek Wyoming · Jones County |
191 | 1 | 1 | |
|
Stout Water Supply Stout · Grundy County |
191 | 0 | 0 | |
|
Green Acres Mobile Home Park Burlington · Des Moines County |
190 | 0 | 0 | |
|
Logansport Water System Boone · Boone County |
190 | 0 | 0 | |
|
Sunnyside Village MHP LLC Missouri Valley · Harrison County |
190 | 5 | 3 | |
|
Moorhead Water Supply Moorhead · Monona County |
189 | 2 | 0 | |
|
Portsmouth Water Supply Portsmouth · Shelby County |
189 | 0 | 0 | |
|
Magnolia, City of Magnolia · Harrison County |
188 | 0 | 0 | |
|
Park Plaza MHP LLC Muscatine · Muscatine County |
188 | 1 | 0 | |
|
ST Peter Lutheran Church Toeterville · Mitchell County |
188 | 0 | 0 | |
|
Woden Water Supply Woden · Hancock County |
188 | 3 | 0 | |
|
Rake Water Supply Rake · Winnebago County |
186 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Iowa records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.