Is CARDWELL PWS required to publish a Consumer Confidence Report?

Yes. CARDWELL 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 CARDWELL PWS’s next Consumer Confidence Report due?

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

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.

CARDWELL, MO · Dunklin County

CARDWELL PWS Water System

Consumer Confidence Report status

CARDWELL 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 2 items for CARDWELL PWS that are 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): MO4010137
System type: Community Water System
Population served: 533
Service connections: 284
Ownership: local government
Water source: groundwater (wells)

CARDWELL PWS is one of 489 community water systems in Missouri in the 501 to 3,300 people size category, serving 533 people from groundwater.

As of August 1, 2026, its federal record holds 55 entries between 2005 and 2025, of which 2 remain open; none are health-based.

Of the 55, 51 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, the Total Coliform Rules, and inorganic chemicals.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Monitoring, Regular
—
Styrene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Toluene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Benzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2025 – May 31, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – June 17, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2024 – April 30, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2024 – March 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2024 – January 31, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 14, 2023 – March 14, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – December 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2019 – February 28, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2019 – December 19, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2019 – December 19, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Mercury
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Selenium
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Beryllium, Total
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Antimony, Total
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Fluoride
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Chromium
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Cadmium
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Barium
January 1, 2017 – December 31, 2019
Archived
Monitoring, Regular
—
Arsenic
January 1, 2017 – December 31, 2019
Archived
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2016 – December 16, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – May 5, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2011 – May 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2010 – February 28, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2006 – September 30, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2005 – June 30, 2005
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
July 1, 2025 – September 30, 2025	Monitoring, Regular	Styrene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Toluene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Benzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
May 1, 2025 – May 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2024 – June 17, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2024 – April 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
March 1, 2024 – March 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 14, 2023 – March 14, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
February 1, 2019 – February 28, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2019 – December 19, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2019 – December 19, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Mercury	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Selenium	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Thallium, Total	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Beryllium, Total	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Antimony, Total	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Fluoride	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Chromium	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Cadmium	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Barium	—	Archived
January 1, 2017 – December 31, 2019	Monitoring, Regular	Arsenic	—	Archived
July 1, 2016 – December 16, 2016	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2012 – May 5, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2011 – May 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2010 – February 28, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2005 – June 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

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

Enforcement actions

December 17, 2025State Compliance achieved21 linked violations
December 10, 2025State Public Notification requested1 linked violation
December 10, 2025State Violation/Reminder Notice1 linked violation
August 25, 2025State Public Notification received1 linked violation
July 7, 2025State Violation/Reminder Notice1 linked violation
July 7, 2025State Public Notification requested1 linked violation
June 26, 2025State Compliance achieved1 linked violation
June 17, 2025State Compliance achieved1 linked violation
November 6, 2024State Formal Notice of Violation issued1 linked violation
September 13, 2024State Public Notification received1 linked violation
September 13, 2024State Public Notification received1 linked violation
July 1, 2024State Violation/Reminder Notice3 linked violations
July 1, 2024State Compliance achieved3 linked violations
May 30, 2024State Violation/Reminder Notice1 linked violation
May 30, 2024State Public Notification requested1 linked violation
May 17, 2024State Compliance achieved4 linked violations
May 14, 2024State Compliance achieved2 linked violations
April 30, 2024State Public Notification requested1 linked violation
April 30, 2024State Violation/Reminder Notice1 linked violation
March 24, 2024State Public Notification received1 linked violation
March 24, 2024State Public Notification received2 linked violations
March 14, 2024State Compliance achieved1 linked violation
March 4, 2024State Violation/Reminder Notice1 linked violation
March 4, 2024State Public Notification requested1 linked violation
February 28, 2024State Compliance achieved3 linked violations
December 13, 2022State Public Notification requested2 linked violations
December 13, 2022State Violation/Reminder Notice2 linked violations
September 21, 2021State Compliance achieved2 linked violations
January 25, 2021State Public Notification received2 linked violations
December 31, 2020State Violation/Reminder Notice2 linked violations
December 31, 2020State Public Notification requested2 linked violations
June 22, 2020State Public Notification received3 linked violations
December 19, 2019State Compliance achieved4 linked violations
December 6, 2019State Violation/Reminder Notice2 linked violations
December 6, 2019State Public Notification requested2 linked violations
June 5, 2019State Compliance achieved1 linked violation
April 2, 2019State Public Notification requested1 linked violation
April 2, 2019State Violation/Reminder Notice1 linked violation
January 16, 2019State Public Notification received2 linked violations
December 19, 2018State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 18, 2018State Public Notification requested2 linked violations
December 18, 2018State Violation/Reminder Notice2 linked violations
December 16, 2016State Compliance achieved1 linked violation
May 5, 2014State Compliance achieved1 linked violation
January 22, 2014State Compliance achieved8 linked violations
August 1, 2011State Public Notification received1 linked violation
June 21, 2011State Public Notification requested1 linked violation
May 10, 2010State Public Notification received2 linked violations
March 22, 2010State Violation/Reminder Notice2 linked violations
January 28, 2010State Public Notification requested2 linked violations
July 29, 2005State Public Notification requested3 linked violations
April 5, 2001State Compliance achieved20 linked violations

Common questions

Is CARDWELL PWS required to publish a Consumer Confidence Report?: Yes. CARDWELL 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 CARDWELL PWS’s next Consumer Confidence Report due?: CARDWELL PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CARDWELL PWS have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for CARDWELL PWS that are 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

CLARK, MIKE

573-654-2112

CARDWELL, MO 63829-0000