Does Coraopolis, PA tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 8 violation(s) across the community water systems serving Coraopolis, of which 0 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Coraopolis, PA tap water come from?

Coraopolis is served by 1 active community water system(s). Their primary sources, per EPA records, are: surface water.

PA / Coraopolis

PA · Tap water records

Coraopolis tap water, in plain English

Here is what the EPA's own data shows about tap water in Coraopolis. According to EPA SDWIS data retrieved June 2026, Coraopolis is served by 1 active community water system, together reported to serve about 5,804 people.

As of June 2026, EPA records show 8 violations across the community water system(s) serving Coraopolis, going back to the earliest EPA record. None were health-based; the records are monitoring or reporting violations (a required test or report was late or missed). Each is listed by system below, with its status.

1

Community water system
~5,804

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Coraopolis Water & Sewer Auth

5,804 served · surface water · PWSID PA5020010

Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in April 2024. EPA records do not show all of these as returned to compliance.
Monitoring Groundwater Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in August 2022. All have since returned to compliance, per EPA records.
Monitoring 2,3,7,8-TCDD: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2017. 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 once in July 2004. 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.