NEW KNOXVILLE, OH · Mercer County

GRAND LAKE ESTATES Water System

Current status

6 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): OH5400312
System type: Community Water System
Population served: 103
Service connections: 68
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2025 – December 31, 2025
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
November 14, 2018 – February 21, 2019
Resolved
Public Education
Health-based
Lead and Copper Rule
February 3, 2016 – February 3, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2016 – October 13, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
June 1, 2015 – June 22, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2010 – May 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2009 – August 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2007 – December 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – August 7, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2005 – April 30, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2004 – August 7, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2004 – September 30, 2004
Archived
Monitoring, Regular
—
Nitrite
July 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2004 – December 31, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – December 19, 2003
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2003 – August 7, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2003 – September 30, 2003
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2002 – September 30, 2002
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2002 – November 20, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2002 – May 31, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2000 – September 30, 2000
Resolved
Monitoring, Regular
—
Benzene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Selenium
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Mercury
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Chromium
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Cadmium
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Barium
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Thallium, Total
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Nickel
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Beryllium, Total
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Antimony, Total
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Fluoride
July 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2000 – April 2, 2001
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2000 – December 13, 2000
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2000 – April 2, 2001
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2000 – April 2, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2000 – February 29, 2000
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1995 – December 31, 1995
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1994 – July 11, 1995
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – July 11, 1995
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Endrin
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
Endrin
January 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
2,4-D
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1991 – December 31, 1991
Resolved
Monitoring, Regular
—
2,4-D
January 1, 1991 – December 31, 1991
Archived

Archived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
December 1, 2025 – December 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Archived
July 1, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
November 14, 2018 – February 21, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
February 3, 2016 – February 3, 2016	Public Education	Lead and Copper Rule	Health-based	Resolved
January 1, 2016 – October 13, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
June 1, 2015 – June 22, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
May 1, 2010 – May 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2009 – August 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2007 – December 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – August 7, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2005 – April 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – August 7, 2007	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	TTHM	—	Archived
July 1, 2004 – December 31, 2004	Monitoring, Regular	Nitrite	—	Resolved
July 1, 2004 – December 31, 2004	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2003 – December 19, 2003	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2003 – August 7, 2007	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2003 – September 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2002 – September 30, 2002	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2002 – November 20, 2002	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 1, 2002 – May 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2000 – September 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Benzene	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Selenium	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Mercury	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Chromium	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Cadmium	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Barium	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Thallium, Total	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Nickel	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Beryllium, Total	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Antimony, Total	—	Resolved
July 1, 2000 – December 31, 2000	Monitoring, Regular	Fluoride	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2000 – December 13, 2000	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2000 – April 2, 2001	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
February 1, 2000 – February 29, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1994 – July 11, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1994 – July 11, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 1991 – December 31, 1991	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	Endrin	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	Endrin	—	Archived
January 1, 1991 – December 31, 1991	Monitoring, Regular	2,4-D	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1991 – December 31, 1991	Monitoring, Regular	2,4-D	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

August 15, 2024State Violation/Reminder Notice1 linked violation
August 14, 2020State Violation/Reminder Notice2 linked violations
February 16, 2016State Public Notification received1 linked violation
February 3, 2016State Compliance achieved2 linked violations
October 2, 2009State Public Notification received8 linked violations
July 1, 2005State Public Notification received4 linked violations
June 11, 2001State Public Notification received22 linked violations
December 13, 2000State Compliance achieved6 linked violations
October 1, 1986State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record

Contact

OSBORNE, DANIEL

419-733-9451

NEW KNOXVILLE, OH 45871