COLUMBIA, PA · Lancaster County

COLUMBIA WATER CO 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 Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.

System facts

System ID (PWSID): PA7360123
System type: Community Water System
Population served: 25,200
Service connections: 10,648
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2024 – April 30, 2024
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2023 – April 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
December 1, 2018 – February 28, 2019
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
November 1, 2018 – January 31, 2019
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 2017 – September 30, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2017 – May 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2017 – November 16, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2016 – June 30, 2016
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2016 – March 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Simazine
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
LASSO
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Endrin
January 1, 2014 – December 2, 2014
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2014 – December 2, 2014
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2011 – September 30, 2011
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2011 – August 31, 2011
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2008 – August 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2006 – September 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2006 – March 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2005 – September 30, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – November 4, 2004
Resolved
Monitoring, Regular
—
Nitrate
October 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1993 – September 30, 1993
Archived
Monitoring, Regular
—
Nitrate
April 1, 1993 – June 30, 1993
Archived
Monitoring, Regular
—
Chromium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Barium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Mercury
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Selenium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – March 31, 1993
Archived
Monitoring, Regular
—
Fluoride
January 1, 1993 – December 31, 1993
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1992 – February 29, 1992
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1992 – January 31, 1992
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1991 – July 31, 1991
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 1991 – March 31, 1991
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1991 – March 31, 1991
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 1991 – January 31, 1991
Archived
Monitoring, Regular
—
Benzene
January 1, 1991 – March 31, 1991
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1990 – December 31, 1990
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1990 – December 31, 1990
Archived
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
CHLOROBENZENE
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Toluene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Ethylbenzene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Styrene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Trichloroethylene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
Benzene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 1988 – September 30, 1988
Archived
Monitoring, Regular
—
2,4-D
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Endrin
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Toluene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Styrene
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Benzene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
April 1, 1988 – June 30, 1988
Resolved
Monitoring, Regular
—
Arsenic
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Barium
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Chromium
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Cadmium
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Selenium
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Nitrate
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Mercury
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Fluoride
June 26, 1986 – June 25, 1987
Resolved
Monitoring, Regular
—
Chromium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Cadmium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Barium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Selenium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Arsenic
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Nitrate
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Mercury
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Fluoride
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2024 – April 30, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2023 – April 30, 2023	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
December 1, 2018 – February 28, 2019	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
November 1, 2018 – January 31, 2019	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2017 – November 16, 2017	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
April 1, 2016 – June 30, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2016 – March 31, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Simazine	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	LASSO	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Endrin	—	Resolved
January 1, 2014 – December 2, 2014	Monitoring, Regular	Methoxychlor	—	Resolved
September 1, 2011 – September 30, 2011	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2011 – August 31, 2011	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2009 – September 30, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2008 – August 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2005 – September 30, 2005	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2004 – November 4, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1993 – September 30, 1993	Monitoring, Regular	Nitrate	—	Archived
April 1, 1993 – June 30, 1993	Monitoring, Regular	Nitrate	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Chromium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Barium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Mercury	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Selenium	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Nitrate	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Fluoride	—	Resolved
February 1, 1992 – February 29, 1992	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1992 – January 31, 1992	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1991 – July 31, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 1991 – March 31, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 1991 – March 31, 1991	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1991 – January 31, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Benzene	—	Archived
December 1, 1990 – December 31, 1990	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
December 1, 1990 – December 31, 1990	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,2-Dichloropropane	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Tetrachloroethylene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	CHLOROBENZENE	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Toluene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Ethylbenzene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Styrene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	p-Dichlorobenzene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	DICHLOROMETHANE	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	o-Dichlorobenzene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,2-Dichloroethane	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Carbon tetrachloride	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Trichloroethylene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	Benzene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
July 1, 1988 – September 30, 1988	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	2,4-D	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Endrin	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Toxaphene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Toluene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Styrene	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Benzene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 1988 – June 30, 1988	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Arsenic	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Barium	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Chromium	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Cadmium	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Selenium	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Nitrate	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Mercury	—	Resolved
June 26, 1986 – June 25, 1987	Monitoring, Regular	Fluoride	—	Resolved
June 25, 1984 – June 24, 1985	Monitoring, Regular	Chromium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Cadmium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Barium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Selenium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Arsenic	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Nitrate	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Mercury	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Fluoride	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Archived

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

Enforcement actions

March 5, 2025State Public Notification received3 linked violations
June 12, 2024State Compliance achieved1 linked violation
June 7, 2024State Violation/Reminder Notice1 linked violation
September 22, 2023State Compliance achieved1 linked violation
June 9, 2023State Violation/Reminder Notice1 linked violation
June 9, 2023State Compliance achieved1 linked violation
May 7, 2019State Public Notification requested2 linked violations
May 7, 2019State Public Notification requested3 linked violations
May 7, 2019State Compliance achieved2 linked violations
May 7, 2019State Compliance achieved3 linked violations
February 14, 2019State Violation/Reminder Notice2 linked violations
February 14, 2019State Violation/Reminder Notice1 linked violation
November 16, 2017State Compliance achieved2 linked violations
November 14, 2017State Violation/Reminder Notice2 linked violations
August 8, 2017State Compliance achieved2 linked violations
August 1, 2016State Compliance achieved1 linked violation
July 29, 2016State Compliance achieved1 linked violation
July 28, 2016State Public Notification received1 linked violation
July 28, 2016State Compliance achieved1 linked violation
July 28, 2016State Violation/Reminder Notice1 linked violation
May 5, 2016State Public Notification received1 linked violation
May 5, 2016State Violation/Reminder Notice1 linked violation
January 29, 2016State Violation/Reminder Notice1 linked violation
January 29, 2016State Public Notification requested1 linked violation
January 29, 2016State Compliance achieved1 linked violation
December 2, 2014State Compliance achieved17 linked violations
November 25, 2014State Compliance achieved17 linked violations
September 10, 2013State Compliance achieved1 linked violation
November 1, 2011State Boil Water Order1 linked violation
November 1, 2011State Compliance Meeting conducted1 linked violation
November 1, 2011State Compliance achieved1 linked violation
October 5, 2011State Violation/Reminder Notice1 linked violation
October 5, 2011State Public Notification received1 linked violation
October 5, 2011State Compliance achieved1 linked violation
October 5, 2011State Boil Water Order1 linked violation
November 2, 2009State Compliance achieved1 linked violation
October 22, 2008State Compliance achieved1 linked violation
September 24, 2008State Formal Notice of Violation issued1 linked violation
September 24, 2008State Formal Notice of Violation issued1 linked violation
September 24, 2008State Public Notification received1 linked violation
September 24, 2008State Public Notification received1 linked violation
August 14, 2007State Compliance achieved1 linked violation
October 25, 2006State Compliance achieved1 linked violation
May 4, 2006State Compliance achieved1 linked violation
December 15, 2005State Compliance achieved1 linked violation
November 4, 2005State Consent Decree/Judgement1 linked violation
November 4, 2004State Violation/Reminder Notice1 linked violation
November 4, 2004State Compliance achieved1 linked violation
November 4, 2004State Consent Decree/Judgement1 linked violation
July 31, 1991State Formal Notice of Violation issued6 linked violations
May 6, 1991State Formal Notice of Violation issued8 linked violations
November 9, 1988State Formal Notice of Violation issued16 linked violations
August 11, 1988State Compliance achieved19 linked violations
August 28, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 11, 1987State Compliance achieved8 linked violations
May 4, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 3, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
December 9, 1986State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 1, 1986State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
September 8, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 1, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
May 19, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 10, 1986State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
February 28, 1986State Site Visit for enforcement purposesgeneral compliance action — not tied to a specific violation on record
January 14, 1986State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record

Contact

COLUMBIA WATER CO

717-684-2188

COLUMBIA, PA 17512