Revised Total Coliform Rule (RTCR) violations in Iowa
341 active public water systems in Iowa had a Revised Total Coliform Rule (RTCR) violation in the past three years, 58 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hillside Golf Wesley · Hancock County |
62 | 1 | 0 | |
|
Lindsey Estates Swisher · Johnson County |
62 | 4 | 2 | |
|
Pine Ridge Park Steamboat Rock · Hardin County |
62 | 2 | 0 | |
|
Saulsbury Br-Educational Ctr. Muscatine · Muscatine County |
62 | 2 | 0 | |
|
Bluffton Resort Decorah · Winneshiek County |
60 | 1 | 0 | |
|
Bodensteiner Implement INC (nh) New Hampton · Chickasaw County |
60 | 2 | 0 | |
|
Montipark LLC Monticello · Jones County |
60 | 10 | 4 | |
|
Wahkonsa Country Club Durant · Cedar County |
60 | 1 | 0 | |
|
Wapsi Oaks Country Club Calamus · Clinton County |
60 | 1 | 0 | |
|
Wickiup Hill Outdoor Learning Center Toddville · Linn County |
60 | 1 | 0 | |
|
Wilson Island State Rec Area Missouri Valley · Harrison County |
60 | 2 | 0 | |
|
Americinn Williamsburg Williamsburg · Iowa County |
59 | 4 | 1 | |
|
Him Hearth N Home Cooking Kalona · Washington County |
57 | 2 | 1 | |
|
Kroul Farms Mount Vernon · Linn County |
55 | 2 | 1 | |
|
Oak Shores Armstrong · Emmet County |
55 | 1 | 0 | |
|
Pine Creek Golf Course Mason City · Cerro Gordo County |
55 | 2 | 0 | |
|
Club 76 INC North Liberty · Johnson County |
53 | 3 | 0 | |
|
Eagle Lane Corporation Blue Grass · Scott County |
53 | 1 | 0 | |
|
High Point City Church Iowa City · Johnson County |
53 | 2 | 0 | |
|
Big Rock Country Club Fayette · Fayette County |
52 | 3 | 1 | |
|
Gavin Estates Dubuque · Dubuque County |
52 | 4 | 2 | |
|
Rock Creek Marina & Campground Camanche · Clinton County |
52 | 1 | 0 | |
|
ST Johns Lutheran Church Greene · Butler County |
52 | 1 | 0 | |
|
Buffalo Run Golf Club Nora Springs · Cerro Gordo County |
51 | 3 | 1 | |
|
Deer Creek Lutheran Church Carpenter · Mitchell County |
51 | 2 | 0 | |
|
Mid-Mart, Inc. Holy Cross · Dubuque County |
51 | 2 | 1 | |
|
Becker Drive Road & Well, LLC Fort Dodge · Webster County |
50 | 2 | 0 | |
|
Coralville Lake Marina Iowa City · Johnson County |
50 | 1 | 0 | |
|
Hurstville Interpretive Center Hurstville · Jackson County |
50 | 1 | 0 | |
|
Kingdom Hall (waukon) Waukon · Allamakee County |
50 | 2 | 0 | |
|
Muscatine Com School Transportation Bldg Muscatine · Muscatine County |
50 | 3 | 0 | |
|
Rocky Knoll MHP Forest City · Winnebago County |
49 | 3 | 0 | |
|
Iowa Limestone CO Alden · Hardin County |
48 | 1 | 0 | |
|
Pine Grove Mennonite School Chester · Howard County |
48 | 1 | 0 | |
|
Timberlane Water Association Fort Dodge · Webster County |
48 | 3 | 0 | |
|
Eagle Hills Algona · Kossuth County |
47 | 2 | 0 | |
|
Hartman Riverside Camp #1 Harpers Ferry · Allamakee County |
46 | 1 | 0 | |
|
Creek Valley Campground Dubuque · Dubuque County |
45 | 1 | 0 | |
|
Lemar Industries Sheffield · Franklin County |
45 | 1 | 0 | |
|
Poet Biorefining-Hanlontown, LLC Hanlontown · Worth County |
45 | 1 | 0 | |
|
Quail Run Country Club Neola · Pottawattamie County |
45 | 2 | 1 | |
|
Vista Hills Water Association Le Claire · Scott County |
45 | 2 | 0 | |
|
Walnut Street Well Walford · Benton County |
45 | 1 | 0 | |
|
Windridge Implements L.l.c. Decorah · Winneshiek County |
45 | 1 | 0 | |
|
Crooked Creek Christian Camp Washington · Washington County |
43 | 3 | 0 | |
|
Gooseys Bar & Grill Mcintire · Mitchell County |
42 | 1 | 0 | |
|
Fairview Mennonite Church Kalona · Johnson County |
41 | 2 | 1 | |
|
Gilbertville Depot Gilbertville · Black Hawk County |
40 | 1 | 0 | |
|
North End Mobile Home Park Dubuque · Dubuque County |
40 | 4 | 0 | |
|
Turf Masters Lawn & Landscape Iowa City · Johnson County |
40 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
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.