Public Water Partners

MILL SPRING, MO · Wayne County

MILL SPRING PWS Water System

Consumer Confidence Report status

MILL SPRING PWS 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 MILL SPRING PWS.

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)
MO4010527
System type
Community Water System
Population served
112
Service connections
63
Ownership
local government
Water source
groundwater (wells)

MILL SPRING PWS is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, serving 112 people from groundwater.

As of August 1, 2026, its federal record holds 35 entries between 2006 and 2025, all of which EPA lists as closed.

Of the 35, 33 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 volatile organic chemicals, synthetic organic chemicals, and the Groundwater Rule.

Violation history

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    October 1, 2025 – October 31, 2025

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    February 1, 2025 – February 28, 2025

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    May 1, 2024 – May 31, 2024

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    November 1, 2023 – November 30, 2023

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2023 – December 31, 2025

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    May 1, 2022 – May 31, 2022

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2022 – December 31, 2022

    Resolved

  • Monitoring of Treatment (SWTR-Unfilt/GWR)

    —

    Groundwater Rule

    October 1, 2021 – October 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Endrin

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2020 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2016 – September 13, 2017

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2014 – September 18, 2015

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2006 – June 27, 2007

    Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is MILL SPRING PWS required to publish a Consumer Confidence Report?

Yes. MILL SPRING PWS 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 MILL SPRING PWS’s next Consumer Confidence Report due?

MILL SPRING PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does MILL SPRING PWS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for MILL SPRING PWS.

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

CLYBURN, ANGELA

573-223-2832

MILL SPRING, MO 63952-0000