Arsenic violations in Iowa
15 active public water systems in Iowa had a Arsenic violation in the past three years, 1 of them in the latest quarter of EPA's data. What Arsenic is and why it matters.
Systems with a Arsenic violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
McBride Pointe Third Master Maintenance Solon · Johnson County |
25 | 4 | 0 | |
|
Camanche Water Supply Camanche · Clinton County |
4,570 | 2 | 0 | |
|
Woodward Water Supply Woodward · Dallas County |
1,346 | 1 | 0 | |
|
Camp Dodge Water Supply Johnston · Polk County |
1,169 | 4 | 0 | |
|
Ellsworth Public Water Supply Ellsworth · Hamilton County |
514 | 3 | 1 | |
|
Turkey Valley Community School Jackson Junction · Winneshiek County |
490 | 2 | 0 | |
|
Marshalltown Estates Marshalltown · Marshall County |
382 | 3 | 0 | |
|
Massena Water Supply Massena · Cass County |
364 | 5 | 1 | |
|
Mallard Water Supply Mallard · Palo Alto County |
257 | 2 | 1 | |
|
Iowa City Regency Mobile Home Community Iowa City · Johnson County |
225 | 2 | 0 | |
|
Monmouth Water Supply Monmouth · Jackson County |
129 | 2 | 0 | |
|
Lanesboro Water Works Lanesboro · Carroll County |
119 | 2 | 0 | |
|
US Nameplate Company INC Mount Vernon · Linn County |
65 | 8 | 1 | |
|
Rocky Knoll MHP Forest City · Winnebago County |
49 | 3 | 0 | |
|
Redwing Estates HOA Iowa City · Johnson County |
48 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Arsenic, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Arsenic 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. Retrieved from ECHO on Oct 11, 2026.