Is FRONTIER ESTATES required to publish a Consumer Confidence Report?

Yes. FRONTIER ESTATES 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 FRONTIER ESTATES’s next Consumer Confidence Report due?

FRONTIER ESTATES’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.

FENTON, MO · Jefferson County

FRONTIER ESTATES Water System

Consumer Confidence Report status

FRONTIER ESTATES 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 FRONTIER ESTATES.

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): MO6036101
System type: Community Water System
Population served: 120
Service connections: 48
Ownership: privately owned
Water source: groundwater (wells)

FRONTIER ESTATES is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, serving 120 people from groundwater.

As of August 1, 2026, its federal record holds 23 entries between 1981 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 23, 9 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, the Radionuclides and Revised Rad Rule, and the Consumer Confidence Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2023 – June 30, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2020 – July 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 29, 2015 – February 22, 2016
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
September 19, 2015 – November 17, 2016
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2012 – September 4, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2009 – January 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2004 – January 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2002 – June 30, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2002 – May 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2002 – February 28, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2001 – November 30, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2001 – October 31, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2001 – September 30, 2001
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2001 – June 30, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1993 – November 30, 1993
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
November 1, 1992 – October 31, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 22, 1981 – September 21, 1983
Archived

Resolved 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
July 1, 2023 – June 30, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2020 – July 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 29, 2015 – February 22, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 19, 2015 – November 17, 2016	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
September 1, 2012 – September 4, 2014	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
August 1, 2012 – August 31, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2012 – July 31, 2012	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2009 – January 31, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2004 – December 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – June 30, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2004 – January 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2003 – June 30, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2002 – June 30, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2002 – May 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2002 – February 28, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2001 – November 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2001 – October 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2001 – September 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2001 – June 30, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
November 1, 1993 – November 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1992 – October 31, 1996	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
December 22, 1981 – September 21, 1983	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived

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

Enforcement actions

March 14, 2025State Compliance achieved1 linked violation
October 22, 2024State Public Notification received1 linked violation
September 3, 2024State Public Notification requested1 linked violation
September 3, 2024State Formal Notice of Violation issued1 linked violation
September 11, 2020State Public Notification received1 linked violation
August 31, 2020State Compliance achieved1 linked violation
August 31, 2020State Public Notification requested1 linked violation
August 31, 2020State Violation/Reminder Notice1 linked violation
December 14, 2018State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 17, 2016State Compliance achieved1 linked violation
November 17, 2016State Compliance achieved1 linked violation
March 1, 2016State Public Notification received1 linked violation
February 22, 2016State Compliance achieved1 linked violation
January 5, 2016State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 18, 2015State Public Notification requested1 linked violation
November 18, 2015State Formal Notice of Violation issued1 linked violation
September 4, 2014State Compliance achieved1 linked violation
January 22, 2014State Compliance achieved1 linked violation
January 22, 2014State Compliance achieved17 linked violations
January 22, 2014State Compliance achieved4 linked violations
July 2, 2013State Public Notification received1 linked violation
October 22, 2012State Public Notification received1 linked violation
October 22, 2012State Public Notification received1 linked violation
September 20, 2012State Public Notification requested1 linked violation
September 20, 2012State Violation/Reminder Notice1 linked violation
September 20, 2012State Public Notification requested1 linked violation
September 20, 2012State Violation/Reminder Notice1 linked violation
September 19, 2012State Public Notification requested1 linked violation
September 19, 2012State Violation/Reminder Notice1 linked violation
June 9, 2011State Compliance achieved9 linked violations
March 23, 2009State Public Notification received3 linked violations
June 30, 2005State Compliance achieved5 linked violations
March 7, 2005State Public Notification received2 linked violations
January 24, 2005State Public Notification requested1 linked violation
January 24, 2005State Violation/Reminder Notice1 linked violation
April 21, 2004State Public Notification requested2 linked violations
February 3, 2004State Violation/Reminder Notice2 linked violations
December 18, 2002State Public Notification requested1 linked violation
December 18, 2002State Violation/Reminder Notice1 linked violation
November 18, 2002State Public Notification requested1 linked violation
November 18, 2002State Violation/Reminder Notice1 linked violation
July 31, 2002State Violation/Reminder Notice2 linked violations
July 31, 2002State Public Notification requested2 linked violations
June 26, 2002State Bilateral Compliance Agreement signed10 linked violations
March 28, 2002State Public Notification received3 linked violations
October 26, 2001State Public Notification requested3 linked violations
January 9, 2001State Compliance achieved69 linked violations
January 9, 2001State Compliance achieved1 linked violation

Common questions

Is FRONTIER ESTATES required to publish a Consumer Confidence Report?: Yes. FRONTIER ESTATES 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 FRONTIER ESTATES’s next Consumer Confidence Report due?: FRONTIER ESTATES’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does FRONTIER ESTATES have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for FRONTIER ESTATES.
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

JACKSON, KEN

314-779-4996

FENTON, MO 63026-0000