ANCHORAGE, AK · Matanuska-Susitna Borough County

UNIFIED ALASKAN UTILITIES SHERWOOD ESTAT Water System

Current status

1 item on record is 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 Alaska’s official records. Always confirm current status with Alaska before making decisions based on this information.

System facts

System ID (PWSID): AK2224078
System type: Community Water System
Population served: 147
Service connections: 59
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
September 1, 2025 – September 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2021 – June 30, 2021
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
March 6, 2019 – September 6, 2019
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
January 21, 2019 – September 6, 2019
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
January 21, 2019 – September 6, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2018 – September 30, 2018
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
October 1, 2016 – May 26, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2016 – December 31, 2016
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
October 1, 2016 – May 26, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2016 – March 31, 2016
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2015 – July 17, 2017
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2014 – October 21, 2015
Resolved
Monitoring, Routine (IDSE)
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 2, 2013 – October 21, 2015
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
April 16, 2013 – December 15, 2014
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
April 14, 2013 – December 15, 2014
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2012 – October 21, 2015
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2012
Unaddressed
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2011 – November 21, 2012
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Styrene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Toluene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Benzene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Styrene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Toluene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Benzene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Styrene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Toluene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Benzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Benzene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Toluene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Toluene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Styrene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Benzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2009 – December 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2008 – January 31, 2008
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2008 – January 31, 2008
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2004 – May 31, 2004
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2004 – April 30, 2004
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2003 – November 30, 2003
Archived
Monitoring, Regular
—
Antimony, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2003 – December 31, 2003
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2003 – November 14, 2011
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Nickel
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2002 – December 31, 2002
Archived
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2001 – August 31, 2001
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 1999 – December 31, 2002
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1998 – December 29, 1999
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1996 – December 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1996 – July 31, 1996
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
May 1, 1996 – May 31, 1996
Archived
Monitoring, Regular
—
Nitrate
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Atrazine
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Chlordane
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Endrin
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Picloram
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Methoxychlor
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
BHC-GAMMA
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
Toxaphene
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
2,4-D
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1995 – August 30, 1995
Archived
Monitoring, Regular
—
Chlordane
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Endrin
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Diquat
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Picloram
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Simazine
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
2,4-D
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Atrazine
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Toxaphene
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
BHC-GAMMA
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Methoxychlor
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfone
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Endrin
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Diquat
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Picloram
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Simazine
April 1, 1995 – June 30, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1995 – April 30, 1995
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
BHC-GAMMA
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfone
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1995 – January 31, 1995
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
2,4-D
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Atrazine
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Chlordane
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Endrin
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Diquat
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Picloram
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Simazine
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1995 – January 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1994 – June 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1994 – April 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1994 – March 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1994 – February 28, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1993 – November 30, 1993
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1993 – December 14, 1998
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Benzene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
September 1, 1988 – August 31, 1992
Archived
Monitoring, Regular
—
Nitrate
June 1, 1988 – May 31, 1991
Archived
Monitoring, Regular
—
Cadmium
June 1, 1988 – May 31, 1991
Archived
Monitoring, Regular
—
Arsenic
June 1, 1988 – May 31, 1991
Archived
Monitoring, Regular
—
Barium
June 1, 1988 – May 31, 1991
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
September 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2021 – June 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
March 6, 2019 – September 6, 2019	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
January 21, 2019 – September 6, 2019	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
January 21, 2019 – September 6, 2019	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
October 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2018 – September 30, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2016 – May 26, 2017	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2016 – May 26, 2017	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
January 1, 2016 – March 31, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2015 – July 17, 2017	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2014 – October 21, 2015	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 2, 2013 – October 21, 2015	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
April 16, 2013 – December 15, 2014	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
April 14, 2013 – December 15, 2014	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
January 1, 2012 – October 21, 2015	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2012	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 1, 2011 – November 21, 2012	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Styrene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Toluene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Benzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Styrene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Toluene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Benzene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Styrene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Toluene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Benzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Benzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Toluene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Styrene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Toluene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Styrene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Benzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2008 – January 31, 2008	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2008 – January 31, 2008	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2004 – May 31, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
April 1, 2004 – April 30, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
November 1, 2003 – November 30, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 2003 – December 31, 2003	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2003 – November 14, 2011	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Arsenic	—	Archived
January 1, 2002 – December 31, 2002	Monitoring, Regular	Styrene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	CYANIDE	—	Resolved
August 1, 2001 – August 31, 2001	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1999 – December 31, 2002	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 1998 – December 29, 1999	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Nitrate	—	Resolved
December 1, 1996 – December 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1996 – July 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1996 – May 31, 1996	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1996 – December 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Atrazine	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Chlordane	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Endrin	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Picloram	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Methoxychlor	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	Toxaphene	—	Resolved
October 1, 1995 – December 31, 1995	Monitoring, Regular	2,4-D	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1995 – August 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Chlordane	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Endrin	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Diquat	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Picloram	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Simazine	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	2,4-D	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Atrazine	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Toxaphene	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Methoxychlor	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb sulfone	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Endrin	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Diquat	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Picloram	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Simazine	—	Resolved
April 1, 1995 – April 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Aldicarb	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Aldicarb sulfone	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1995 – January 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	2,4-D	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Atrazine	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Chlordane	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Endrin	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Diquat	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Picloram	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Simazine	—	Resolved
January 1, 1995 – January 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1994 – August 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – July 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1994 – June 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1994 – May 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1994 – April 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
March 1, 1994 – March 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1994 – February 28, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1993 – November 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1993 – December 14, 1998	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Benzene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
September 1, 1988 – August 31, 1992	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 1, 1988 – May 31, 1991	Monitoring, Regular	Nitrate	—	Archived
June 1, 1988 – May 31, 1991	Monitoring, Regular	Cadmium	—	Archived
June 1, 1988 – May 31, 1991	Monitoring, Regular	Arsenic	—	Archived
June 1, 1988 – May 31, 1991	Monitoring, Regular	Barium	—	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

December 9, 2025State Compliance achieved1 linked violation
January 13, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 13, 2025State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
June 7, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 24, 2023State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
December 2, 2022State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 1, 2021State Compliance achieved1 linked violation
January 28, 2020State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 22, 2020State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 6, 2019State Compliance achieved1 linked violation
September 6, 2019State Compliance achieved1 linked violation
September 6, 2019State Compliance achieved1 linked violation
February 11, 2019State Compliance achieved1 linked violation
February 11, 2019State Compliance achieved1 linked violation
October 24, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
July 17, 2017State Compliance achieved1 linked violation
July 5, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
June 8, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 6, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
May 30, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 26, 2017State Compliance achieved2 linked violations
May 19, 2017State Compliance achieved1 linked violation
May 18, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
March 31, 2017State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 29, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
August 29, 2016State Compliance achieved1 linked violation
June 7, 2016State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
June 3, 2016State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
October 21, 2015State Compliance achieved1 linked violation
October 21, 2015State Compliance achieved1 linked violation
October 21, 2015State Compliance achieved1 linked violation
December 15, 2014State Compliance achieved2 linked violations
November 21, 2012State Compliance achieved2 linked violations
April 13, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 27, 2012State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
November 14, 2011State Compliance achieved2 linked violations
November 14, 2011State Compliance achieved3 linked violations
August 28, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 19, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 30, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 5, 2007State Compliance achieved1 linked violation
April 18, 2005State Compliance achieved21 linked violations
April 18, 2005State Compliance achieved18 linked violations
April 6, 2005State Compliance achieved10 linked violations
January 2, 2004State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
July 20, 2003State Compliance achieved28 linked violations
April 4, 2003State Formal Notice of Violation issued1 linked violation
February 25, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 25, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 26, 2002State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 19, 2001State Othergeneral compliance action — not tied to a specific violation on record
July 26, 2001State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
July 16, 2001State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
July 9, 2001State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 15, 2001State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
April 30, 2001State Other25 linked violations
March 7, 2001State Othergeneral compliance action — not tied to a specific violation on record
February 28, 2001State Othergeneral compliance action — not tied to a specific violation on record
March 10, 2000State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
December 29, 1999State Compliance achieved1 linked violation
August 27, 1999State Othergeneral compliance action — not tied to a specific violation on record
July 27, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 23, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 13, 1999State Compliance achieved80 linked violations
March 2, 1999State Othergeneral compliance action — not tied to a specific violation on record
January 29, 1999State Compliance achieved1 linked violation
December 17, 1998State Compliance achieved11 linked violations
December 14, 1998State Compliance achieved1 linked violation
December 1, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 9, 1998State Othergeneral compliance action — not tied to a specific violation on record
October 16, 1998State Compliance achieved2 linked violations
May 7, 1998State Othergeneral compliance action — not tied to a specific violation on record
August 21, 1997State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 14, 1997State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 30, 1996State Othergeneral compliance action — not tied to a specific violation on record
May 29, 1996State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 15, 1996State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 31, 1995State Othergeneral compliance action — not tied to a specific violation on record
December 22, 1994State Boil Water Order8 linked violations
June 10, 1994State Formal Notice of Violation issued8 linked violations
March 30, 1994State Violation/Reminder Notice3 linked violations
January 11, 1994State Violation/Reminder Notice2 linked violations
December 5, 1993State Othergeneral compliance action — not tied to a specific violation on record
January 12, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 8, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 13, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 30, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 7, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Contact

NORTHERN UTILITY SERVICES LLC

907-222-4084

ANCHORAGE, AK 99523-3368