COMERIO, PR · Comerio Municipio County

COMERIO URBANO 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 Puerto Rico’s official records. Always confirm current status with Puerto Rico before making decisions based on this information.

System facts

System ID (PWSID): PR0004705
System type: Community Water System
Population served: 14,872
Service connections: 5,570
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Regular
—
Nitrate
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2024 – March 31, 2024
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2023 – November 30, 2023
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2023 – September 24, 2023
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2020 – June 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
January 1, 2018 – January 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
January 1, 2018 – January 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
January 1, 2018 – January 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
February 1, 2017 – February 28, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
January 1, 2017 – January 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
October 1, 2016 – October 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
October 1, 2016 – October 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
October 1, 2016 – October 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2016 – December 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
June 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2014 – November 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2014 – August 31, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 11, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2014 – July 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2014 – September 30, 2014
Resolved
Monitoring, Regular
—
LASSO
July 1, 2014 – September 30, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2014 – June 30, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2014 – June 30, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2014 – December 31, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2013 – December 31, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2013 – September 30, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
Selenium
January 1, 2013 – December 31, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Chromium
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Barium
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2013 – December 31, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2012 – December 31, 2018
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
December 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2006 – June 30, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2006 – March 31, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2005 – October 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2005 – December 31, 2005
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2005 – September 30, 2005
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2004 – December 31, 2004
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2004 – July 31, 2004
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2004 – June 30, 2004
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2004 – March 31, 2004
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2003 – December 31, 2003
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2003 – September 30, 2003
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2002 – May 31, 2002
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2002 – April 30, 2002
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2000 – January 31, 2000
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1999 – December 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1999 – July 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1999 – April 30, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1998 – June 30, 1998
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 1996 – September 30, 1997
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
Nitrate
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Arsenic
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Mercury
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Fluoride
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Chromium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Cadmium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Barium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
September 1, 1980 – September 30, 1980
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 – June 30, 2024	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
November 1, 2023 – November 30, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2023 – October 31, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2023 – September 30, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2023 – September 24, 2023	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2023 – September 30, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2023 – August 31, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2023 – August 31, 2023	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
September 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2015 – September 30, 2015	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
June 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
November 1, 2014 – November 30, 2014	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 2014 – August 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2014 – August 11, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2014 – July 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – September 30, 2014	Monitoring, Regular	LASSO	—	Resolved
June 1, 2014 – June 30, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2014 – June 30, 2014	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2014 – March 31, 2014	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Fluoride	—	Resolved
October 1, 2013 – December 31, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2013 – September 30, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2013 – June 30, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Selenium	—	Resolved
January 1, 2013 – March 31, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Barium	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2012 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2011 – December 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2005 – October 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 1, 2004 – December 31, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
July 1, 2004 – July 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 2004 – June 30, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2004 – March 31, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
October 1, 2003 – December 31, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2003 – September 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
May 1, 2002 – May 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 2002 – April 30, 2002	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
January 1, 2000 – January 31, 2000	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
December 1, 1999 – December 31, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
July 1, 1999 – July 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1999 – April 30, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1998 – June 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1996 – September 30, 1997	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 1, 1993 – December 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Nitrate	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Arsenic	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Mercury	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Fluoride	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Chromium	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Cadmium	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Barium	—	Archived
September 1, 1980 – September 30, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

December 10, 2024State Formal Notice of Violation issued1 linked violation
December 10, 2024State Formal Notice of Violation issued1 linked violation
September 30, 2024State Compliance achieved1 linked violation
September 30, 2024State Compliance achieved1 linked violation
February 8, 2024State Formal Notice of Violation issued1 linked violation
February 8, 2024State Formal Notice of Violation issued1 linked violation
January 19, 2024State Formal Notice of Violation issued1 linked violation
January 19, 2024State Formal Notice of Violation issued1 linked violation
December 31, 2023State Compliance achieved1 linked violation
December 31, 2023State Compliance achieved1 linked violation
December 31, 2023State Compliance achieved1 linked violation
December 31, 2023State Compliance achieved1 linked violation
December 31, 2023State Compliance achieved4 linked violations
November 13, 2023State Formal Notice of Violation issued1 linked violation
November 13, 2023State Formal Notice of Violation issued1 linked violation
November 13, 2023State Formal Notice of Violation issued1 linked violation
October 13, 2023State Formal Notice of Violation issued1 linked violation
October 13, 2023State Formal Notice of Violation issued1 linked violation
September 24, 2023State Compliance achieved1 linked violation
December 31, 2020State Compliance achieved8 linked violations
December 31, 2020State Compliance achieved7 linked violations
October 6, 2020State Formal Notice of Violation issued1 linked violation
September 30, 2020State Compliance achieved1 linked violation
July 31, 2020State Compliance achieved1 linked violation
January 15, 2020State Civil Case filed in State courtgeneral compliance action — not tied to a specific violation on record
October 31, 2019State Compliance achieved1 linked violation
October 31, 2019State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 13, 2019State Compliance achieved1 linked violation
July 10, 2019State Formal Notice of Violation issued1 linked violation
January 15, 2019State Civil Case filed in State court1 linked violation
December 31, 2018State Compliance achieved2 linked violations
November 30, 2018State Compliance achieved6 linked violations
August 13, 2018State Formal Notice of Violation issued6 linked violations
June 30, 2018State Compliance achieved1 linked violation
May 8, 2018State Civil Case filed in State court5 linked violations
February 28, 2018State Compliance achieved3 linked violations
December 31, 2017State Compliance achieved11 linked violations
October 31, 2017State Formal Notice of Violation issued3 linked violations
August 31, 2017State Compliance achieved21 linked violations
July 6, 2017State Formal Notice of Violation issued3 linked violations
May 24, 2017State Compliance achieved1 linked violation
May 15, 2017State Formal Notice of Violation issued6 linked violations
December 13, 2016State Formal Notice of Violation issued3 linked violations
October 26, 2016State Civil Case filed in State court3 linked violations
March 31, 2016State Compliance achieved4 linked violations
February 19, 2016State Formal Notice of Violation issued1 linked violation
December 31, 2015State Compliance achieved2 linked violations
November 24, 2015State Formal Notice of Violation issued2 linked violations
November 6, 2015State Other2 linked violations
July 15, 2015State Other1 linked violation
July 15, 2015State Other1 linked violation
July 13, 2015State Formal Notice of Violation issued2 linked violations
May 31, 2015State Compliance achieved1 linked violation
March 31, 2015State Compliance achieved1 linked violation
March 6, 2015State Formal Notice of Violation issued1 linked violation
March 1, 2015State Compliance achieved3 linked violations
December 31, 2014State Compliance achieved1 linked violation
December 31, 2014State Compliance achieved7 linked violations
December 12, 2014State Civil Case filed in State court1 linked violation
November 7, 2014State Formal Notice of Violation issued1 linked violation
October 27, 2014State Civil Case filed in State court6 linked violations
October 27, 2014State Civil Case filed in State court1 linked violation
October 27, 2014State Civil Case filed in State court1 linked violation
October 27, 2014State Civil Case filed in State court1 linked violation
September 30, 2014State Compliance achieved2 linked violations
September 11, 2014State Compliance achieved9 linked violations
August 11, 2014State Compliance achieved1 linked violation
August 11, 2014State Formal Notice of Violation issued2 linked violations
April 9, 2014State Formal Notice of Violation issued9 linked violations
October 21, 2013State Civil Case filed in State court6 linked violations
February 6, 2013State Formal Notice of Violation issued1 linked violation
December 20, 2011State Formal Notice of Violation issued1 linked violation
October 1, 2011State Compliance achieved1 linked violation
July 31, 2010State Compliance achieved1 linked violation
March 1, 2010State Compliance achieved1 linked violation
January 29, 2010State Compliance achieved2 linked violations
June 30, 2008State Compliance achieved6 linked violations
June 24, 2008State Civil Case filed in State court2 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued4 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued6 linked violations
April 30, 2006State Compliance achieved2 linked violations
October 4, 2004State Public Notification requested1 linked violation
August 12, 2002State Public Notification requested1 linked violation
May 9, 2000State Public Notification requested1 linked violation
February 8, 2000State Public Notification requested1 linked violation
November 12, 1999State Public Notification requested1 linked violation
August 10, 1999State Public Notification requested1 linked violation
August 1, 1998State Public Notification received1 linked violation
August 25, 1997State Administrative/Compliance Order without penalty issued1 linked violation
January 29, 1994State Public Notification received2 linked violations
August 19, 1993State Public Notification received1 linked violation
February 28, 1991State Violation/Reminder Notice1 linked violation

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