Does Decatur, IN tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 9 violation(s) across the community water systems serving Decatur, of which 2 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Decatur, IN tap water come from?

Decatur is served by 2 active community water system(s). Their primary sources, per EPA records, are: groundwater.

IN / Decatur

IN · Tap water records

Decatur tap water, in plain English

Here is what the EPA's own data shows about tap water in Decatur. According to EPA SDWIS data retrieved June 2026, Decatur is served by 2 active community water systems, together reported to serve about 10,110 people.

As of June 2026, EPA records show 9 violations across the community water system(s) serving Decatur, going back to the earliest EPA record. 2 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

2

Community water systems
~10,110

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Decatur Water Department

9,900 served · groundwater · PWSID IN5201002

Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between October 2000 and July 2014. All have since returned to compliance, per EPA records.

Oakwood Community Association, Inc.

210 served · groundwater · PWSID IN5201009

Health-based Revised Total Coliform Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in October 2023. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between October 1999 and October 1999. All have since returned to compliance, per EPA records.

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.