WARREN, OH · Knox County

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

System facts

System ID (PWSID): OH4201512
System type: Community Water System
Population served: 110
Service connections: 63
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2015 – April 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2013 – September 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2013 – September 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2004 – September 30, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2004 – March 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2004 – January 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2002 – April 30, 2002
Resolved
Monitoring, Regular
—
Methoxychlor
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
OXAMYL
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Pentachlorophenol
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Picloram
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Glyphosate
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Endothall
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Diquat
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Carbofuran
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
2,4-D
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
BHC-GAMMA
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
April 1, 2001 – May 1, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2000 – July 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1999 – July 31, 1999
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Selenium
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Mercury
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Chlordane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Picloram
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Atrazine
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Endothall
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Dalapon
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Endrin
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Diquat
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Simazine
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
LASSO
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
2,4-D
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 1994 – March 31, 1994
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2022 – September 30, 2022	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2015 – April 30, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2013 – September 30, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2013 – September 30, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
March 1, 2009 – March 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring, Regular	Nitrate	—	Resolved
March 1, 2004 – March 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – January 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2002 – April 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Methoxychlor	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	OXAMYL	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Pentachlorophenol	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Picloram	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Glyphosate	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Endothall	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Diquat	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Carbofuran	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	2,4-D	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	BHC-GAMMA	—	Resolved
April 1, 2001 – May 1, 2001	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2000 – July 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1999 – July 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Selenium	—	Resolved
January 1, 1997 – June 30, 1997	Monitoring, Regular	Mercury	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Chlordane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Picloram	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Atrazine	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Endothall	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Dalapon	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Endrin	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Diquat	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Simazine	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	LASSO	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	2,4-D	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Pentachlorophenol	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 4, 2023State Compliance achieved3 linked violations
November 21, 2022State Public Notification requested4 linked violations
May 20, 2015State Public Notification requested3 linked violations
November 19, 2014State Public Notification requested4 linked violations
April 19, 2007State Compliance achieved4 linked violations
April 19, 2007State Compliance achieved8 linked violations
May 21, 2002State Public Notification requested20 linked violations
May 1, 2001State Compliance achieved15 linked violations
August 21, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record

Contact

MCMAHON, MIKEY

330-621-0778

WARREN, OH 44481