DES PERES, MO · Montgomery County

ROY L UTILITIES Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): MO6251710
System type: Community Water System
Population served: 150
Service connections: 60
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Atrazine
April 1, 2025 – June 30, 2025
Resolved
Monitoring, Regular
—
LASSO
April 1, 2025 – June 30, 2025
Resolved
Monitoring, Regular
—
Simazine
April 1, 2025 – June 30, 2025
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2023 – May 6, 2024
Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2017 – December 31, 2019
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2016 – December 5, 2017
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2014 – September 29, 2017
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2011 – February 29, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2011 – February 29, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 23, 2006 – December 31, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 8, 2005 – December 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2005 – November 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2005 – October 31, 2005
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2005 – September 30, 2005
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – June 27, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – June 27, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – June 27, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2002 – July 31, 2002
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2002 – June 27, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2001 – June 27, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1993 – April 30, 1993
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 30, 1991 – June 29, 1991
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
April 1, 2025 – June 30, 2025	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2025 – June 30, 2025	Monitoring, Regular	LASSO	—	Resolved
April 1, 2025 – June 30, 2025	Monitoring, Regular	Simazine	—	Resolved
December 30, 2023 – May 6, 2024	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Radium-226	—	Resolved
October 1, 2016 – December 5, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2014 – September 29, 2017	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2011 – February 29, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – February 29, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 23, 2006 – December 31, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 8, 2005 – December 31, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 1, 2005 – November 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2005 – October 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
September 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2005 – June 27, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
November 1, 2004 – November 30, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2004 – August 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – June 27, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2003 – June 27, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2002 – July 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2002 – June 27, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2001 – June 27, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 1, 1995 – December 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1993 – April 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 30, 1991 – June 29, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	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

June 27, 2006State Compliance achieved5 linked violations
December 23, 2005State Public Notification requested1 linked violation
November 7, 2005State Public Notification requested1 linked violation
November 7, 2005State Violation/Reminder Notice1 linked violation
October 21, 2005State Public Notification requested1 linked violation
October 21, 2005State Violation/Reminder Notice2 linked violations
January 31, 2005State Compliance achieved1 linked violation
December 27, 2004State Public Notification requested1 linked violation
December 27, 2004State Violation/Reminder Notice1 linked violation
September 30, 2004State Public Notification requested1 linked violation
September 30, 2004State Violation/Reminder Notice1 linked violation
February 25, 2004State Bilateral Compliance Agreement signed4 linked violations
September 6, 2002State Public Notification requested2 linked violations
November 9, 2000State Violation/Reminder Notice14 linked violations
June 25, 1991State Public Notification issuedgeneral compliance action — not tied to a specific violation on record

Contact

SASSEN, ISABEL

314-464-3964

DES PERES, MO 63131-0000