THAYER PWS

Missouri — Community Water System — PWSID: MO4010788

System Information

PWSID	MO4010788
System Name	THAYER PWS
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	07
Serves School	No
Wholesaler	No
First Reported	Mar 7, 1980
Last Reported	Dec 31, 2025

Location & Contact

State	Missouri
City	THAYER
ZIP Code	65791-0000
Address	124 N SECOND ST
Organization	MARTIN, DONNA
Phone	417-264-3921

Population & Service

Population Served	2,200
Service Connections	925

Drinking Water Violations (39)

This water system has 39 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Jul 1, 2025	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 1, 2023	Consumer Confidence Rule
Jul 1, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 1, 2023	Consumer Confidence Rule
Jul 1, 2022	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 30, 2022	Consumer Confidence Rule
Jul 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 9, 2020	Consumer Confidence Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
Aug 1, 2011	Aug 31, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2011	Total Coliform Rule
Aug 1, 2011	Aug 31, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2011	Total Coliform Rule
Aug 1, 2011	Aug 31, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2011	Total Coliform Rule
Aug 1, 2011	Aug 31, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2011	Total Coliform Rule
Jul 1, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jun 28, 2007	Consumer Confidence Rule
Apr 1, 2002	Apr 30, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 2002	Total Coliform Rule
Apr 1, 2002	Apr 30, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 2002	Total Coliform Rule
Apr 1, 2002	Apr 30, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 2002	Total Coliform Rule
Apr 1, 2002	Apr 30, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 2002	Total Coliform Rule
Nov 1, 2000	Nov 30, 2000	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2000	Total Coliform Rule
Nov 1, 2000	Nov 30, 2000	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2000	Total Coliform Rule
May 1, 1996	May 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 1996	Total Coliform Rule
May 1, 1996	May 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 1996	Total Coliform Rule
May 1, 1996	May 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 1996	Total Coliform Rule
May 1, 1996	May 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 1996	Total Coliform Rule
Jan 1, 1995	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 1994	Lead and Copper Rule
Dec 1, 1994	Dec 31, 1994	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Dec 31, 1994	Surface Water Treatment Rule
Dec 1, 1994	Dec 31, 1994	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Dec 31, 1994	Surface Water Treatment Rule
Dec 1, 1994	Dec 31, 1994	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Dec 31, 1994	Surface Water Treatment Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1992	Total Coliform Rule
—	—		—	No	No	—	—	—	—	—	—

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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