All water systems in Iowa
1,804 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Minden Water Supply Minden · Pottawattamie County |
598 | 0 | 0 | |
|
Ireton Water Supply Ireton · Sioux County |
590 | 0 | 0 | |
|
Early Municipal Water Supply Early · Sac County |
587 | 1 | 0 | |
|
Clermont Water Supply Clermont · Fayette County |
586 | 0 | 0 | |
|
Swea City Water Supply Swea City · Kossuth County |
584 | 0 | 0 | |
|
Gilman Water Supply Gilman · Marshall County |
582 | 0 | 0 | |
|
Everly Water Supply Everly · Clay County |
575 | 0 | 0 | |
|
Ruveon LLC Muscatine · Muscatine County |
575 | 0 | 0 | |
|
New Hartford Water Supply New Hartford · Butler County |
570 | 0 | 0 | |
|
Badger Water Supply Badger · Webster County |
561 | 0 | 0 | |
|
Radcliffe Municipal Water Radcliffe · Hardin County |
561 | 0 | 0 | |
|
Fox Creek Benefitted Wtr. District Booneville · Dallas County |
553 | 1 | 0 | |
|
Val Vista Estates Des Moines · Polk County |
553 | 0 | 0 | |
|
North Fayette Valley Community School Elgin · Fayette County |
552 | 0 | 0 | |
|
Agri Star Meat and Poultry LLC Postville · Allamakee County |
550 | 1 | 0 | |
|
Terrace Heights Dubuque · Dubuque County |
548 | 1 | 0 | |
|
Blackbird Bend Casino County |
546 | 3 | 0 | |
|
Anthon Municipal Water System Anthon · Woodbury County |
545 | 0 | 0 | |
|
Delmar Water Supply Delmar · Clinton County |
542 | 0 | 0 | |
|
Richland Water Supply Richland · Keokuk County |
542 | 1 | 0 | |
|
Conagra Foods Packaged Foods LLC Fort Madison · Lee County |
540 | 0 | 0 | |
|
Sunset Village Marshalltown · Marshall County |
528 | 0 | 0 | |
|
Zearing Water Department Zearing · Story County |
528 | 3 | 0 | |
|
Dows Water Supply Dows · Wright County |
526 | 1 | 0 | |
|
Arcadia Water Supply Arcadia · Carroll County |
525 | 0 | 0 | |
|
Truro Waterworks Truro · Madison County |
525 | 1 | 0 | |
|
Wyoming Water System Wyoming · Jones County |
523 | 0 | 0 | |
|
Charter Oak Water Supply Charter Oak · Crawford County |
522 | 0 | 0 | |
|
Whittemore Muni Water Supply Whittemore · Kossuth County |
522 | 0 | 0 | |
|
Ripleys MHC IA LLC Muscatine · Muscatine County |
520 | 1 | 0 | |
|
Shops Above the Wapsi Anamosa · Jones County |
515 | 4 | 0 | |
|
The Country Express Decorah · Winneshiek County |
515 | 0 | 0 | |
|
Ellsworth Public Water Supply Ellsworth · Hamilton County |
514 | 3 | 1 | |
|
Ainsworth Water Works Ainsworth · Washington County |
511 | 0 | 0 | |
|
Scranton Water System Scranton · Greene County |
511 | 1 | 0 | |
|
Titonka Water Supply Titonka · Kossuth County |
511 | 2 | 0 | |
|
Rolfe Water Supply Rolfe · Pocahontas County |
509 | 0 | 0 | |
|
Backbone State Park Dundee · Delaware County |
508 | 0 | 0 | |
|
Sabula Water Supply Sabula · Jackson County |
506 | 1 | 0 | |
|
The Depot Walford Walford · Linn County |
506 | 0 | 0 | |
|
Collins Water Supply Collins · Story County |
505 | 0 | 0 | |
|
Desoto Natl Wildlife Refuge-Visitor Ctr Missouri Valley · Harrison County |
505 | 2 | 0 | |
|
Elma Water Supply Elma · Howard County |
505 | 0 | 0 | |
|
Breda Water Supply Breda · Carroll County |
502 | 0 | 0 | |
|
Pleasant Creek ST Rec Area-South Palo · Linn County |
502 | 0 | 0 | |
|
Alburnett Community School District Alburnett · Linn County |
500 | 0 | 0 | |
|
Thompson Water Works Thompson · Winnebago County |
499 | 0 | 0 | |
|
New Virginia Water Supply New Virginia · Warren County |
498 | 0 | 0 | |
|
Farragut Water Supply Farragut · Fremont County |
490 | 0 | 0 | |
|
Turkey Valley Community School Jackson Junction · Winneshiek County |
490 | 2 | 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 still 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. Retrieved from ECHO on Oct 11, 2026.