Public Water Partners

WALNUT GROVE, MO · Greene County

WALNUT GROVE PWS Water System

Consumer Confidence Report status

WALNUT GROVE 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 1 item for WALNUT GROVE PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
MO5010829
System type
Community Water System
Population served
762
Service connections
309
Ownership
local government
Water source
groundwater (wells)

WALNUT GROVE PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 762 people from groundwater.

As of August 1, 2026, its federal record holds 28 entries between 1992 and 2025, of which 1 remains open; none are health-based.

Of the 28, 26 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, inorganic chemicals, and the Total Coliform Rules.

Violation history

  • Report Sample Result/Fail Monitor (RTCR)

    —

    Revised Total Coliform Rule

    September 1, 2025 – November 13, 2025

    Resolved

  • Consumer Confidence Report Inadequate Reporting

    —

    Consumer Confidence Rule

    July 1, 2024 – September 30, 2024

    Resolved

  • Lead Consumer Notice

    —

    Lead and Copper Rule

    December 30, 2023

    Unaddressed

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    November 1, 2019 – November 30, 2019

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2015 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Radium-226

    July 1, 2013 – September 30, 2013

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2011 – September 30, 2011

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 1992 – February 29, 1992

    Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is WALNUT GROVE PWS required to publish a Consumer Confidence Report?

Yes. WALNUT GROVE 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 WALNUT GROVE PWS’s next Consumer Confidence Report due?

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

Does WALNUT GROVE PWS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for WALNUT GROVE PWS that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

SUTTON, ERIC

417-788-2596

WALNUT GROVE, MO 65770-0000