Tapcensus

Fluoride violations in Iowa

9 active public water systems in Iowa had a Fluoride violation in the past three years. What Fluoride is and why it matters.

Health effects: Above 2 mg/L: dental fluorosis (mottling/pitting of tooth enamel) in children under 8. Above 4 mg/L: skeletal fluorosis (joint pain, increased bone density) after decades of exposure.

Systems with a Fluoride violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Camanche Water Supply
Camanche · Clinton County
4,570 2 0
Turkey Valley Community School
Jackson Junction · Winneshiek County
490 2 0
Marshalltown Estates
Marshalltown · Marshall County
382 3 0
Iowa City Regency Mobile Home Community
Iowa City · Johnson County
225 2 0
Monmouth Water Supply
Monmouth · Jackson County
129 2 0
Hansell Water Department
Hansell · Franklin County
82 3 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 Fluoride, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Fluoride 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.