Does Mount Vernon, NY tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 5 violation(s) across the community water systems serving Mount Vernon, of which 1 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Mount Vernon, NY tap water come from?

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

NY / Mount Vernon

NY · Tap water records

Mount Vernon tap water, in plain English

Here is what the EPA's own data shows about tap water in Mount Vernon. According to EPA SDWIS data retrieved June 2026, Mount Vernon is served by 2 active community water systems, together reported to serve about 74,333 people.

As of June 2026, EPA records show 5 violations across the community water system(s) serving Mount Vernon, going back to the earliest EPA record. 1 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
~74,333

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Mount Vernon Water Department

73,893 served · surface water · PWSID NY5903441

Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in August 2015. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.

Harris Woods Hoa

440 served · groundwater · PWSID NY5221008

Monitoring contaminant code null: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between June 2019 and May 2020. All have since returned to compliance, per EPA records.
Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between October 2016 and October 2017. 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.