All water systems in Iowa
1,804 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
River Run Pub & Grub Harpers Ferry · Allamakee County |
40 | 0 | 0 | |
|
Turf Masters Lawn & Landscape Iowa City · Johnson County |
40 | 3 | 0 | |
|
Walnut Grove Pk-Clin Conservat Grand Mound · Clinton County |
40 | 1 | 0 | |
|
Wild Cat Den State Park Well-1 Muscatine · Muscatine County |
40 | 0 | 0 | |
|
Barn Happy Cedar Falls · Black Hawk County |
39 | 0 | 0 | |
|
Bass Farms LLC Mount Vernon · Linn County |
39 | 2 | 0 | |
|
Cedar Springs Camp Floyd · Floyd County |
39 | 2 | 0 | |
|
Twin Lakes Golf Club Rockwell City · Calhoun County |
39 | 0 | 0 | |
|
Country Hills Water Corp Centralia · Dubuque County |
38 | 0 | 0 | |
|
Lakeshore Water Association Clear Lake · Cerro Gordo County |
38 | 1 | 0 | |
|
Mason City Red Power INC Mason City · Cerro Gordo County |
38 | 1 | 0 | |
|
Rinard Water Supply Rinard · Calhoun County |
38 | 0 | 0 | |
|
Shagbark Estates Dubuque · Dubuque County |
38 | 3 | 1 | |
|
ST Johns Lutheran Church (homestead) Homestead · Iowa County |
38 | 1 | 0 | |
|
Minneiska # 1 North Harpers Ferry · Allamakee County |
37 | 0 | 0 | |
|
River Ranch Camping INC Nashua · Chickasaw County |
37 | 1 | 0 | |
|
Riverview Subdivision Montpelier · Muscatine County |
37 | 1 | 0 | |
|
Swartzrock Implement CO INC Charles City · Floyd County |
37 | 2 | 1 | |
|
Community Country Store Annex Kalona · Johnson County |
36 | 3 | 1 | |
|
Cresco Golf and Country Club Cresco · Howard County |
36 | 0 | 0 | |
|
Fox Valley Acres Muscatine · Muscatine County |
36 | 5 | 2 | |
|
Lower Deer Creek Mennonite Church Kalona · Johnson County |
36 | 1 | 0 | |
|
Pints River Bar Guttenberg · Clayton County |
36 | 0 | 0 | |
|
Sorbo Family Campground Northwood · Worth County |
36 | 0 | 0 | |
|
Alfred's Bar and Grill Bernard · Jackson County |
35 | 4 | 1 | |
|
Anchor Inn (garber) Garber · Clayton County |
35 | 3 | 2 | |
|
Barneys Bar and Grill Burr Oak · Winneshiek County |
35 | 0 | 0 | |
|
Benton County Nature Center/rodgers PK Vinton · Benton County |
35 | 1 | 0 | |
|
Clarmond Country Club Belmond · Wright County |
35 | 3 | 1 | |
|
Country Estates Mobile Home Park Council Bluffs · Pottawattamie County |
35 | 0 | 0 | |
|
Delhi Lakeview Estates Delhi · Delaware County |
35 | 2 | 1 | |
|
Green Brier Subdivision Dubuque · Dubuque County |
35 | 2 | 0 | |
|
Hillandale Iowa II LLP West Union · Fayette County |
35 | 0 | 0 | |
|
Mines of Spain EB Lyons Nature Center Dubuque · Dubuque County |
35 | 0 | 0 | |
|
Salem Lutheran Church Correctionville Correctionville · Woodbury County |
35 | 0 | 0 | |
|
The Meadows Iowa City · Johnson County |
35 | 0 | 0 | |
|
The Zipper Festina · Winneshiek County |
35 | 0 | 0 | |
|
Osborne Outdoor Education Center Elkader · Clayton County |
34 | 0 | 0 | |
|
Pattison Shop Garnavillo · Clayton County |
34 | 0 | 0 | |
|
Regency West Subdivision Dubuque · Dubuque County |
34 | 0 | 0 | |
|
Van Wall Equipment (mason City) Mason City · Cerro Gordo County |
34 | 0 | 0 | |
|
Whiskey Creek (feedlot) Sioux City · Woodbury County |
34 | 0 | 0 | |
|
Berea Heights INC Sioux City · Woodbury County |
33 | 0 | 0 | |
|
Cedar River Campground Tipton · Cedar County |
33 | 1 | 1 | |
|
Cedar River Harley Davidson Charles City · Floyd County |
33 | 1 | 0 | |
|
Cedar Valley Humane Society Cedar Rapids · Linn County |
33 | 0 | 0 | |
|
Chestnut Ridge Cedar Rapids · Linn County |
33 | 3 | 3 | |
|
Kurth Addition Center Point · Linn County |
33 | 0 | 0 | |
|
New Cooperative Rowan Mill Rowan · Franklin County |
33 | 2 | 0 | |
|
Under the Stars at Chimney Rock CG LLC Bluffton · Winneshiek County |
33 | 1 | 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.