MARYVILLE, MO · Nodaway County

MARYVILLE PWS 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): MO1010508
System type: Community Water System
Population served: 10,775
Service connections: 4,220
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2025 – December 31, 2025
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
April 22, 2024 – April 26, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 22, 2024 – April 26, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Chlorite
March 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Chlorite
February 1, 2024 – February 29, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine dioxide
February 1, 2024 – February 29, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorite
February 1, 2024 – February 29, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 6, 2023 – April 25, 2023
Resolved
Failure To Address Deficiency
Health-based
Long Term 2 Enhanced Surface Water Treatment Rule
December 27, 2022 – February 14, 2023
Resolved
Failure to Consult with State
—
Groundwater Rule
August 27, 2022 – November 8, 2022
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2010 – May 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2009 – September 30, 2009
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Benzene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Toluene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
Styrene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1989 – December 31, 1989
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1989 – December 31, 1989
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 1983 – December 31, 1983
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
April 22, 2024 – April 26, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 22, 2024 – April 26, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	Chlorite	Health-based	Resolved
February 1, 2024 – February 29, 2024	Maximum Contaminant Level Violation, Average	Chlorite	Health-based	Resolved
February 1, 2024 – February 29, 2024	Monitoring and Reporting (DBP)	Chlorine dioxide	—	Resolved
February 1, 2024 – February 29, 2024	Monitoring and Reporting (DBP)	Chlorite	—	Resolved
March 6, 2023 – April 25, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 27, 2022 – February 14, 2023	Failure To Address Deficiency	Long Term 2 Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 27, 2022 – November 8, 2022	Failure to Consult with State	Groundwater Rule	—	Resolved
May 1, 2010 – May 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2008 – December 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 1989 – December 31, 1989	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Benzene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Toluene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	Styrene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 1989 – December 31, 1989	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1983 – December 31, 1983	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived

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

Enforcement actions

May 22, 2024State Compliance achieved4 linked violations
April 30, 2024State Compliance achieved2 linked violations
April 26, 2024State Compliance achieved1 linked violation
April 26, 2024State Public Notification received1 linked violation
April 26, 2024State Public Notification received1 linked violation
April 26, 2024State Public Notification received1 linked violation
April 26, 2024State Public Notification received1 linked violation
April 26, 2024State Compliance achieved1 linked violation
April 18, 2024State Formal Notice of Violation issued1 linked violation
April 18, 2024State Formal Notice of Violation issued1 linked violation
April 18, 2024State Public Notification requested1 linked violation
April 18, 2024State Public Notification requested1 linked violation
March 12, 2024State Public Notification requested1 linked violation
March 12, 2024State Formal Notice of Violation issued1 linked violation
March 12, 2024State Formal Notice of Violation issued1 linked violation
March 12, 2024State Public Notification requested1 linked violation
February 8, 2024State Public Notification received1 linked violation
December 21, 2023State Public Notification requested1 linked violation
December 21, 2023State Violation/Reminder Notice1 linked violation
May 1, 2023State Public Notification received1 linked violation
April 25, 2023State Compliance achieved1 linked violation
February 14, 2023State Compliance achieved1 linked violation
January 24, 2023State Public Notification requested1 linked violation
January 24, 2023State Formal Notice of Violation issued1 linked violation
November 8, 2022State Compliance achieved1 linked violation
January 22, 2014State Compliance achieved2 linked violations
December 3, 2010State Compliance achieved1 linked violation
June 28, 2010State Public Notification received1 linked violation
June 9, 2010State Public Notification requested1 linked violation
June 9, 2010State Violation/Reminder Notice1 linked violation
April 19, 2010State Public Notification received1 linked violation
January 27, 2010State Compliance achieved2 linked violations
November 10, 2009State Compliance achieved6 linked violations
November 9, 2009State Public Notification received1 linked violation
May 15, 2009State Public Notification received1 linked violation
May 15, 2009State Formal Notice of Violation issued1 linked violation
May 6, 2009State Public Notification received3 linked violations
April 10, 2009State Formal Notice of Violation issued3 linked violations
April 10, 2009State Public Notification requested2 linked violations
September 29, 2008State Public Notification received1 linked violation
September 2, 2008State Formal Notice of Violation issued2 linked violations
September 2, 2008State Public Notification requested1 linked violation
June 9, 2008State Public Notification received1 linked violation
May 13, 2008State Formal Notice of Violation issued2 linked violations
May 13, 2008State Public Notification requested2 linked violations
June 12, 2006State Public Notification received2 linked violations
March 21, 2006State Public Notification received1 linked violation
February 17, 2006State Formal Notice of Violation issued1 linked violation
February 17, 2006State Public Notification requested1 linked violation
December 31, 2005State Compliance achieved4 linked violations
November 4, 2005State Public Notification received3 linked violations
September 21, 2005State Public Notification requested3 linked violations
September 21, 2005State Formal Notice of Violation issued5 linked violations
June 14, 2002State Public Notification requested2 linked violations
June 14, 2002State Boil Water Order1 linked violation
June 14, 2002State Public Notification issued4 linked violations
June 14, 2002State Public Notification requested3 linked violations

Contact

RIEDEL, RENEE

660-562-8001

MARYVILLE, MO 64468-0000