Public Water Partners

MOUNT VERNON, IA · Linn County

MOUNT VERNON WATER SUPPLY Water System

Consumer Confidence Report status

MOUNT VERNON WATER SUPPLY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MOUNT VERNON WATER SUPPLY.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID)
IA5758021
System type
Community Water System
Population served
4,527
Service connections
1,360
Ownership
local government
Water source
groundwater (wells)

MOUNT VERNON WATER SUPPLY is one of 91 community water systems in Iowa in the 3,301 to 10,000 people size category, serving 4,527 people from groundwater.

As of August 1, 2026, its federal record holds 2 entries between 2004 and 2012, all of which EPA lists as closed. Nothing has been added since 2012.

Of the 2, 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Public Notice Rule and Revised PN Rule and the Radionuclides and Revised Rad Rule.

Violation history

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    June 20, 2012 – April 29, 2013

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    April 1, 2004 – March 31, 2005

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is MOUNT VERNON WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. MOUNT VERNON WATER SUPPLY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MOUNT VERNON WATER SUPPLY’s next Consumer Confidence Report due?

MOUNT VERNON WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does MOUNT VERNON WATER SUPPLY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for MOUNT VERNON WATER SUPPLY.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MOUNT VERNON WATER SUPPLY

319-270-0459

MOUNT VERNON, IA 52314