CELINA, OH · Mercer County

CELINA CITY Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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 Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.

System facts

System ID (PWSID): OH5400011
System type: Community Water System
Population served: 11,682
Service connections: 5,375
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 19, 2024 – August 30, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
January 25, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
January 7, 2019
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2005 – September 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2004 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2004 – September 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2004 – March 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2003 – September 30, 2003
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Styrene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Toluene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Benzene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Simazine
May 1, 2003 – July 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2002 – December 31, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2002 – September 30, 2002
Resolved
Monitoring, Regular
—
LASSO
May 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
Simazine
May 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
Atrazine
May 1, 2002 – July 31, 2002
Resolved
Monitoring, Regular
—
LASSO
May 1, 2001 – July 31, 2001
Resolved
Monitoring, Regular
—
Atrazine
May 1, 2001 – July 31, 2001
Resolved
Monitoring, Regular
—
Simazine
May 1, 2001 – August 15, 2001
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 2000 – February 29, 2000
Resolved
Monitoring, Regular
—
Atrazine
May 1, 1999 – July 31, 1999
Resolved
Monitoring, Regular
—
Simazine
May 1, 1999 – July 31, 1999
Resolved
Monitoring, Regular
—
LASSO
May 1, 1999 – July 31, 1999
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 1997 – June 30, 1997
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 1997 – March 31, 1997
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 1996 – December 31, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 1996 – June 30, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 1996 – March 31, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 1995 – December 31, 1995
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Resolved
Monitoring, Regular
—
Barium
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Cadmium
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Chromium
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Fluoride
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Mercury
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Nitrate
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Arsenic
October 1, 1985 – January 31, 1989
Archived
Monitoring, Regular
—
Selenium
October 1, 1985 – January 31, 1989
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
August 19, 2024 – August 30, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 25, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
January 7, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2004 – March 31, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Styrene	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Toluene	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	Benzene	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2003 – December 31, 2003	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
May 1, 2003 – July 31, 2003	Monitoring, Regular	Simazine	—	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
May 1, 2002 – July 31, 2002	Monitoring, Regular	LASSO	—	Resolved
May 1, 2002 – July 31, 2002	Monitoring, Regular	Simazine	—	Resolved
May 1, 2002 – July 31, 2002	Monitoring, Regular	Atrazine	—	Resolved
May 1, 2001 – July 31, 2001	Monitoring, Regular	LASSO	—	Resolved
May 1, 2001 – July 31, 2001	Monitoring, Regular	Atrazine	—	Resolved
May 1, 2001 – August 15, 2001	Monitoring, Regular	Simazine	—	Resolved
February 1, 2000 – February 29, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
May 1, 1999 – July 31, 1999	Monitoring, Regular	Atrazine	—	Resolved
May 1, 1999 – July 31, 1999	Monitoring, Regular	Simazine	—	Resolved
May 1, 1999 – July 31, 1999	Monitoring, Regular	LASSO	—	Resolved
April 1, 1997 – June 30, 1997	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 1997 – March 31, 1997	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 1996 – December 31, 1996	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 1996 – June 30, 1996	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 1996 – March 31, 1996	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 1995 – December 31, 1995	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 1994 – April 30, 1994	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 1985 – January 31, 1989	Monitoring, Regular	Barium	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Cadmium	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Chromium	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Fluoride	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Mercury	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Nitrate	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Arsenic	—	Archived
October 1, 1985 – January 31, 1989	Monitoring, Regular	Selenium	—	Archived

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

Enforcement actions

August 30, 2024State Compliance achieved1 linked violation
August 19, 2024State Violation/Reminder Notice1 linked violation
January 25, 2024State Violation/Reminder Notice1 linked violation
November 9, 2015State Compliance achieved2 linked violations
September 14, 2015State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 20, 2015State Violation/Reminder Notice1 linked violation
August 20, 2015State Public Notification requested1 linked violation
July 6, 2015State Public Notification received1 linked violation
June 18, 2015State Public Notification requested1 linked violation
June 18, 2015State Violation/Reminder Notice1 linked violation
May 18, 2009State Public Notification requested1 linked violation
May 18, 2009State Violation/Reminder Notice1 linked violation
May 4, 2009State Compliance achieved38 linked violations
March 23, 2009State Public Notification received1 linked violation
February 12, 2009State Public Notification requested1 linked violation
February 12, 2009State Violation/Reminder Notice1 linked violation
December 18, 2008State Public Notification received1 linked violation
November 19, 2008State Public Notification requested2 linked violations
November 19, 2008State Violation/Reminder Notice1 linked violation
October 9, 2008State Public Notification received4 linked violations
August 13, 2008State Violation/Reminder Notice2 linked violations
March 20, 2008Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 6, 2008State Administrative/Compliance Order with penalty issued1 linked violation
February 8, 2008State Compliance achieved1 linked violation
February 1, 2008State Administrative/Compliance Order with penalty issued74 linked violations
January 24, 2008Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
November 28, 2007State Public Notification requested1 linked violation
October 12, 2007State Public Notification received1 linked violation
June 22, 2007State Public Notification received4 linked violations
March 20, 2007State Public Notification received3 linked violations
February 12, 2007State Public Notification received2 linked violations
January 9, 2007State Public Notification received3 linked violations
December 4, 2006State Public Notification requested2 linked violations
December 4, 2006State Violation/Reminder Notice2 linked violations
December 4, 2006State Violation/Reminder Notice1 linked violation
November 6, 2006State Compliance achieved6 linked violations
December 21, 2005State Public Notification received1 linked violation
July 22, 2005State Public Notification received2 linked violations
February 4, 2004State Public Notification requested18 linked violations
September 16, 2003State Public Notification received12 linked violations
May 5, 2003State Bilateral Compliance Agreement signed8 linked violations
May 5, 2003State Administrative/Compliance Order with penalty issued39 linked violations
March 28, 2000State Violation/Reminder Notice21 linked violations
March 28, 2000State Public Notification requested6 linked violations
April 29, 1986State Violation/Reminder Notice7 linked violations
April 29, 1985State Violation/Reminder Notice1 linked violation

Contact

HITCHCOCK, THOMAS

419-586-6464

CELINA, OH 45822