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 |
|---|---|---|---|---|
|
Bass Farms LLC Mount Vernon · Linn County |
39 | 2 | 0 | |
|
Cedar Springs Camp Floyd · Floyd County |
39 | 2 | 0 | |
|
Lakeshore Water Association Clear Lake · Cerro Gordo County |
38 | 1 | 0 | |
|
ST Johns Lutheran Church (homestead) Homestead · Iowa County |
38 | 1 | 0 | |
|
Fox Valley Acres Muscatine · Muscatine County |
36 | 5 | 2 | |
|
Lower Deer Creek Mennonite Church Kalona · Johnson County |
36 | 1 | 0 | |
|
Alfred's Bar and Grill Bernard · Jackson County |
35 | 4 | 1 | |
|
Benton County Nature Center/rodgers PK Vinton · Benton County |
35 | 1 | 0 | |
|
Clarmond Country Club Belmond · Wright County |
35 | 3 | 1 | |
|
Delhi Lakeview Estates Delhi · Delaware County |
35 | 2 | 1 | |
|
Cedar River Harley Davidson Charles City · Floyd County |
33 | 1 | 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 | |
|
Burts Tavern Nichols · Muscatine County |
32 | 3 | 0 | |
|
Durango Depot Durango · Dubuque County |
32 | 1 | 0 | |
|
Lake Odessa Cabin Owners Assoc. Wapello · Louisa County |
31 | 1 | 0 | |
|
The Grove Scotch Grove · Jones County |
31 | 3 | 1 | |
|
Ackley Creek Park Marble Rock · Floyd County |
30 | 1 | 0 | |
|
Grace Lutheran Camp INC De Witt · Clinton County |
30 | 2 | 0 | |
|
River Valley Cooperative Sunbury · Cedar County |
30 | 3 | 1 | |
|
Tricky's Bar and Grill Elma · Howard County |
30 | 1 | 0 | |
|
Warehouse Specialist LLC Council Bluffs · Mills County |
30 | 3 | 1 | |
|
Apex Commercial Park Iowa City · Johnson County |
29 | 1 | 0 | |
|
Jerico Jos Jerico · Chickasaw County |
28 | 1 | 0 | |
|
Super 8 Williams Williams · Hamilton County |
28 | 2 | 0 | |
|
Tri-City Golf Club Monona · Clayton County |
28 | 1 | 0 | |
|
Albrecht Acres Sherrill · Dubuque County |
27 | 2 | 0 | |
|
Calkins Nature Center Iowa Falls · Hardin County |
27 | 2 | 0 | |
|
Central Water Works Fort Dodge · Webster County |
27 | 1 | 0 | |
|
Farmers All Natural Creamery Wellman · Johnson County |
27 | 1 | 0 | |
|
Hancock County Fairgrounds Britt · Hancock County |
27 | 1 | 0 | |
|
Oakridge Homeowners Association Clear Lake · Cerro Gordo County |
26 | 2 | 0 | |
|
Beaver Meadows Country Club Parkersburg · Butler County |
25 | 1 | 0 | |
|
Black Squirrel Tap Swisher · Johnson County |
25 | 2 | 1 | |
|
K-Town Tap Kendallville · Winneshiek County |
25 | 3 | 1 | |
|
Knotty Marie's Dorchester · Allamakee County |
25 | 3 | 1 | |
|
Plum Creek Golf Club Fredericksburg · Chickasaw County |
25 | 2 | 0 | |
|
Spring Lake Campground Burlington · Des Moines County |
25 | 2 | 1 | |
|
Sunset at the Oasis RV Campground Onawa · Monona County |
25 | 2 | 0 | |
|
The Celebration Farm LLC Iowa City · Johnson County |
25 | 1 | 0 | |
|
Woodbine Golf Course Woodbine · Harrison County |
25 | 3 | 1 |
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.