Public Water Partners

ARNOLD, MO · Jefferson County

JEFFERSON COUNTY PWSD 3 Water System

Consumer Confidence Report status

JEFFERSON COUNTY PWSD 3 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 JEFFERSON COUNTY PWSD 3.

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 Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.

System facts

System ID (PWSID)
MO6024294
System type
Community Water System
Population served
17,000
Service connections
8,245
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

JEFFERSON COUNTY PWSD 3 is one of 78 community water systems in Missouri in the 10,001 to 100,000 people size category, serving 17,000 people from surface water.

As of August 1, 2026, its federal record holds 1 entry in 1994, all of which EPA lists as closed. Nothing has been added since 1994.

All 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 Total Coliform Rules.

Violation history

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1994 – September 30, 1994

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is JEFFERSON COUNTY PWSD 3 required to publish a Consumer Confidence Report?

Yes. JEFFERSON COUNTY PWSD 3 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 JEFFERSON COUNTY PWSD 3’s next Consumer Confidence Report due?

JEFFERSON COUNTY PWSD 3’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does JEFFERSON COUNTY PWSD 3 have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for JEFFERSON COUNTY PWSD 3.

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

WELDELE, KENNETH

636-296-7053

ARNOLD, MO 63010-0000