All water systems in Iowa
1,804 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Webster Municipal Water Works Webster · Keokuk County |
96 | 0 | 0 | |
|
Scarville Lutheran Church Scarville · Winnebago County |
95 | 0 | 0 | |
|
Sunrise MHC Boone · Boone County |
95 | 0 | 0 | |
|
Timberline Estates Riverside · Washington County |
95 | 0 | 0 | |
|
Wiota Water Works Wiota · Cass County |
95 | 3 | 0 | |
|
Deer Ridge Homeowners Water Assc. Palo · Linn County |
94 | 1 | 0 | |
|
Terrace Manor Mobile Home Park Le Grand · Marshall County |
93 | 0 | 0 | |
|
Oyens Water Supply Oyens · Plymouth County |
92 | 1 | 0 | |
|
The Hillside Bar & Grill Monticello · Jones County |
92 | 0 | 0 | |
|
Hidden Acres Subdivision Solon · Johnson County |
90 | 3 | 1 | |
|
Hole N the Wall Lodge Akron · Plymouth County |
90 | 1 | 0 | |
|
River Road Golf Club Algona · Kossuth County |
90 | 0 | 0 | |
|
ST Pauls Maple Leaf Lutheran Church Elma · Howard County |
90 | 0 | 0 | |
|
The Learning Journey Council Bluffs · Pottawattamie County |
90 | 2 | 0 | |
|
Twin Knolls Fourth/fifth Addition Toddville · Linn County |
90 | 4 | 2 | |
|
Waldenburg Community Water System Amana · Iowa County |
90 | 1 | 0 | |
|
Corporation of New Melleray Dubuque · Dubuque County |
89 | 1 | 0 | |
|
Creighton University Retreat Center Griswold · Pottawattamie County |
89 | 1 | 0 | |
|
Penn Center INC Delhi · Delaware County |
89 | 0 | 0 | |
|
Rausch Cafe Guttenberg · Clayton County |
89 | 2 | 1 | |
|
Stringtown Grocery Kalona · Johnson County |
89 | 1 | 0 | |
|
Valley View Estates #1 and #2 Muscatine · Muscatine County |
89 | 2 | 0 | |
|
Mount Vernon Community Bible Church Mount Vernon · Linn County |
88 | 2 | 1 | |
|
Oak Ridge Lake Estates Swisher · Johnson County |
88 | 3 | 2 | |
|
Silvercrest Golf & Country Club, Inc. Decorah · Winneshiek County |
88 | 3 | 2 | |
|
Desoto Bend Mini Mart Missouri Valley · Pottawattamie County |
87 | 0 | 0 | |
|
Frytown Water Coop Williamstown · Johnson County |
87 | 0 | 0 | |
|
Mecha Ceba Water System Association Muscatine · Muscatine County |
87 | 0 | 0 | |
|
Pilot Travel Center #496 Tipton · Cedar County |
87 | 0 | 0 | |
|
Round Grove Golf & Country Club Greene · Butler County |
87 | 0 | 0 | |
|
Carlton Mobile Home Court Springville · Linn County |
85 | 0 | 0 | |
|
Chase Mobile Home Park Iowa Falls · Hardin County |
85 | 3 | 0 | |
|
Dubuque Shooting Society Dubuque · Dubuque County |
85 | 0 | 0 | |
|
Makada Homeowners Association Iowa City · Johnson County |
85 | 0 | 0 | |
|
McCarty Creek Homeowners Assn #8 Le Claire · Scott County |
85 | 0 | 0 | |
|
The Twisted Tail Beebeetown · Harrison County |
85 | 0 | 0 | |
|
Trout Valley 2nd Addition Bettendorf · Scott County |
85 | 0 | 0 | |
|
Wapsipinicon Country Club Anamosa · Jones County |
85 | 1 | 0 | |
|
West Post Estates Addition Fairfax · Linn County |
85 | 0 | 0 | |
|
Family Church Iowa City · Johnson County |
84 | 0 | 0 | |
|
Jacobs Landing HOA Shueyville · Johnson County |
84 | 0 | 0 | |
|
Lyn-Den Heights Homeowners Assoc. Iowa City · Johnson County |
84 | 1 | 0 | |
|
Rhodys Dubuque · Dubuque County |
84 | 0 | 0 | |
|
Raccoon River Bible Camp Scranton · Greene County |
83 | 0 | 0 | |
|
Timber Lake Estates HOA Blue Grass · Scott County |
83 | 0 | 0 | |
|
Hampton Country Club Hampton · Franklin County |
82 | 2 | 0 | |
|
Hansell Water Department Hansell · Franklin County |
82 | 3 | 0 | |
|
Humboldt Country Club Humboldt · Humboldt County |
82 | 2 | 0 | |
|
P & K Midwest (mt Vernon) Mount Vernon · Linn County |
82 | 0 | 0 | |
|
Twisters Gymnastics INC Cedar Rapids · Linn County |
82 | 2 | 1 |
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.