PONCE, PR · Ponce Municipio County

COTTO LAUREL 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): PR0004524
System type: Community Water System
Population served: 13,860
Service connections: 5,191
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2023 – September 30, 2023
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2021 – July 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2020 – November 30, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2020 – October 31, 2020
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2020 – October 31, 2020
Archived
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2020 – October 31, 2020
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2020 – October 31, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020 – July 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 10, 2019 – January 3, 2020
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
August 1, 2019 – August 31, 2019
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
August 1, 2019 – August 31, 2019
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
August 1, 2019 – August 31, 2019
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2019 – April 30, 2019
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
April 1, 2019 – April 30, 2019
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2019 – April 30, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 9, 2019 – January 3, 2020
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
November 1, 2018 – November 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
November 1, 2018 – November 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
November 1, 2018 – November 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2018 – December 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2018 – August 13, 2019
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2018 – April 30, 2018
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2018 – June 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
February 1, 2018 – February 28, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
February 1, 2018 – February 28, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
July 1, 2017 – July 31, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
May 1, 2017 – May 31, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2017 – April 30, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2017 – April 30, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
April 1, 2017 – April 30, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
March 1, 2017 – March 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
March 1, 2017 – March 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
March 1, 2017 – March 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
Monitoring, Source Water (LT2)
—
Cryptosporidium
February 1, 2017 – February 28, 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
Monitoring, Source Water (LT2)
—
Turbidity
January 1, 2017 – January 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2017 – March 31, 2017
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
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
October 1, 2016 – December 31, 2016
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2016 – September 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2016 – June 30, 2016
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2016 – June 30, 2016
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2016 – March 31, 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
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 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
Total Haloacetic Acids (HAA5)
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2014 – December 31, 2014
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2014 – September 30, 2014
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2014 – July 31, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 13, 2014
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2014 – June 30, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2014 – March 31, 2014
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2013 – December 31, 2013
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2013 – September 30, 2013
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2013 – June 30, 2013
Archived
Monitoring, Regular
—
Mercury
January 1, 2013 – December 31, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2013 – March 31, 2013
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Antimony, Total
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
January 1, 2012 – March 31, 2012
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2012 – January 31, 2012
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2011 – December 31, 2011
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2011 – September 30, 2011
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2010 – December 31, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2010 – December 31, 2010
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2010 – September 30, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2010 – September 30, 2010
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2010 – June 30, 2010
Archived
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2010 – June 30, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2010 – June 30, 2010
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2010 – March 31, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2010 – March 31, 2010
Archived
Monitoring, Source Water (LT2)
—
Cryptosporidium
December 1, 2009 – December 31, 2009
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
November 1, 2009 – November 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
January 1, 2009 – January 31, 2009
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2008 – December 31, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2008 – October 31, 2008
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2008 – October 31, 2008
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2008 – September 30, 2008
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2008 – September 30, 2008
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2008 – May 31, 2008
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2008 – March 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Methoxychlor
July 1, 2007 – September 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Chlordane
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Toxaphene
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Endrin
July 1, 2007 – September 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2007 – June 30, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Selenium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Nickel
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Mercury
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Chromium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Barium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2007 – December 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2007 – March 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
January 1, 2007 – January 31, 2007
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Styrene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Benzene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2006 – January 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2005 – December 31, 2005
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Styrene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Toluene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Benzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2005 – December 31, 2005
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2005 – September 30, 2005
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2005 – September 30, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2005 – May 31, 2005
Archived
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2005 – June 30, 2005
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2005 – June 30, 2005
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Vinyl chloride
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Xylenes, Total
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Styrene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Ethylbenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Toluene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Benzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2005 – June 30, 2005
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2005 – March 31, 2005
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2005 – March 31, 2005
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2004 – December 31, 2004
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2004 – December 31, 2004
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2004 – September 30, 2004
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2004 – September 30, 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
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
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
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1998 – October 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1998 – October 31, 1998
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 1997 – September 30, 1998
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – October 31, 2025	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2025 – October 31, 2025	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
September 1, 2023 – September 30, 2023	Monthly 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
August 1, 2021 – August 31, 2021	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2021 – August 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2021 – July 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2021 – July 31, 2021	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2021 – July 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2020 – November 30, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2020 – October 31, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2020 – October 31, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2020 – October 31, 2020	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2020 – October 31, 2020	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2020 – July 31, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 10, 2019 – January 3, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 9, 2019 – January 3, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 1, 2018 – November 30, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
November 1, 2018 – November 30, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
November 1, 2018 – November 30, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – August 13, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2018 – June 30, 2018	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2018 – February 28, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
February 1, 2018 – February 28, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2017 – September 30, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2017 – July 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)	E. COLI	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
April 1, 2017 – June 30, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
April 1, 2017 – June 30, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
March 1, 2017 – March 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
March 1, 2017 – March 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
March 1, 2017 – March 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
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	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
January 1, 2017 – January 31, 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 – March 31, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2017 – March 31, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	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
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2016 – September 30, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2016 – September 30, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
June 1, 2016 – June 30, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
June 1, 2016 – June 30, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – March 31, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	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
January 1, 2016 – March 31, 2016	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – December 31, 2015	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2014 – December 31, 2014	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2014 – December 31, 2014	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2014 – July 31, 2014	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2014 – August 13, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2014 – June 30, 2014	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2014 – March 31, 2014	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2013 – December 31, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2013 – September 30, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
April 1, 2013 – June 30, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2013 – December 31, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2013 – March 31, 2013	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2013 – December 31, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Antimony, Total	—	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
January 1, 2012 – March 31, 2012	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2012 – January 31, 2012	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
October 1, 2011 – December 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2011 – September 30, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2010 – December 31, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
June 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2010 – March 31, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
December 1, 2009 – December 31, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2009 – January 31, 2009	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2008 – October 31, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2008 – October 31, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
September 1, 2008 – September 30, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 2008 – September 30, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
May 1, 2008 – May 31, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2008 – March 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2007 – December 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Methoxychlor	—	Resolved
July 1, 2007 – September 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Chlordane	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Toxaphene	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Endrin	—	Resolved
June 1, 2007 – June 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2007 – June 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Selenium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nickel	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Mercury	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Chromium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Barium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – March 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2007 – January 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Beryllium, Total	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Styrene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Toluene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Benzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2006 – January 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2005 – December 31, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Styrene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Toluene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Benzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2005 – September 30, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
May 1, 2005 – May 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,2-Dichloropropane	—	Archived
April 1, 2005 – June 30, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Trichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Carbon tetrachloride	—	Archived
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Vinyl chloride	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	o-Dichlorobenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	DICHLOROMETHANE	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Xylenes, Total	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Styrene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Ethylbenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Toluene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Benzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	CHLOROBENZENE	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2005 – March 31, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
December 1, 2004 – December 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 2004 – December 31, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2004 – September 30, 2004	Treatment Technique Precursor Removal	CARBON, TOTAL	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
November 1, 2003 – November 30, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	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
October 1, 1998 – October 31, 1998	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1998 – October 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1997 – September 30, 1998	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived

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

Enforcement actions

February 19, 2026State Formal Notice of Violation issued5 linked violations
October 31, 2023State Compliance achieved2 linked violations
September 30, 2021State Compliance achieved1 linked violation
September 30, 2021State Compliance achieved1 linked violation
September 30, 2021State Compliance achieved1 linked violation
September 30, 2021State Compliance achieved2 linked violations
September 30, 2021State Compliance achieved1 linked violation
September 29, 2021State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 24, 2021State Formal Notice of Violation issued1 linked violation
September 24, 2021State Formal Notice of Violation issued1 linked violation
September 8, 2021State Formal Notice of Violation issued1 linked violation
September 8, 2021State Formal Notice of Violation issued2 linked violations
September 8, 2021State Formal Notice of Violation issued1 linked violation
January 31, 2021State Compliance achieved1 linked violation
January 31, 2021State Compliance achieved1 linked violation
December 31, 2020State Compliance achieved1 linked violation
December 28, 2020State Formal Notice of Violation issued1 linked violation
December 1, 2020State Formal Notice of Violation issued2 linked violations
December 1, 2020State Formal Notice of Violation issued1 linked violation
July 31, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 3, 2020State Compliance achieved2 linked violations
December 5, 2019State Formal Notice of Violation issued2 linked violations
October 18, 2019State Formal Notice of Violation issued27 linked violations
September 30, 2019State Compliance achieved3 linked violations
August 13, 2019State Compliance achieved1 linked violation
July 10, 2019State Formal Notice of Violation issued1 linked violation
June 27, 2019State Formal Notice of Violation issued3 linked violations
May 31, 2019State Compliance achieved6 linked violations
March 31, 2019State Compliance achieved19 linked violations
January 9, 2019State Formal Notice of Violation issued3 linked violations
December 31, 2018State Compliance achieved6 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved13 linked violations
December 31, 2018State Compliance achieved3 linked violations
December 20, 2018State Civil Case filed in State court2 linked violations
August 13, 2018State Formal Notice of Violation issued6 linked violations
March 31, 2018State Compliance achieved3 linked violations
October 31, 2017State Formal Notice of Violation issued3 linked violations
August 31, 2017State Compliance achieved3 linked violations
July 6, 2017State Formal Notice of Violation issued6 linked violations
June 30, 2017State Compliance achieved3 linked violations
June 30, 2017State Compliance achieved6 linked violations
June 30, 2017State Compliance achieved18 linked violations
May 15, 2017State Formal Notice of Violation issued9 linked violations
February 3, 2017State Other2 linked violations
December 31, 2016State Compliance achieved1 linked violation
December 31, 2016State Compliance achieved1 linked violation
December 31, 2016State Compliance achieved1 linked violation
December 13, 2016State Formal Notice of Violation issued3 linked violations
October 25, 2016State Civil Case filed in State court1 linked violation
February 19, 2016State Formal Notice of Violation issued1 linked violation
December 31, 2015State Compliance achieved2 linked violations
August 3, 2015State Civil Case filed in State court4 linked violations
March 31, 2015State Compliance achieved4 linked violations
February 9, 2015State Formal Notice of Violation issued2 linked violations
February 1, 2015State Compliance achieved1 linked violation
October 27, 2014State Civil Case filed in State court2 linked violations
October 27, 2014State Civil Case filed in State court8 linked violations
October 27, 2014State Civil Case filed in State court4 linked violations
September 29, 2014State Compliance achieved4 linked violations
August 29, 2014State Compliance achieved4 linked violations
August 22, 2014State Civil Case filed in State court1 linked violation
August 13, 2014State Compliance achieved1 linked violation
August 12, 2014State Formal Notice of Violation issued2 linked violations
April 9, 2014State Formal Notice of Violation issued4 linked violations
October 21, 2013State Civil Case filed in State court6 linked violations
February 6, 2013State Formal Notice of Violation issued1 linked violation
July 31, 2012State Compliance achieved1 linked violation
July 31, 2012State Compliance achieved1 linked violation
June 30, 2012State Compliance achieved4 linked violations
April 1, 2012State Compliance achieved8 linked violations
December 31, 2010State Compliance achieved10 linked violations
October 26, 2010State Civil Case filed in State court3 linked violations
September 30, 2010State Civil Case filed in State court3 linked violations
January 29, 2010State Compliance achieved2 linked violations
December 31, 2009State Compliance achieved13 linked violations
September 11, 2009State Civil Case filed in State court6 linked violations
July 31, 2009State Compliance achieved7 linked violations
June 30, 2009State Compliance achieved1 linked violation
March 31, 2009State Compliance achieved6 linked violations
June 24, 2008State Civil Case filed in State court2 linked violations
June 24, 2008State Civil Case filed in State court13 linked violations
April 10, 2008State Compliance achieved1 linked violation
December 31, 2007State Compliance achieved16 linked violations
March 31, 2007State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 31, 2007State Compliance achieved3 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued9 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued9 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued9 linked violations
December 31, 2006State Compliance achieved1 linked violation
September 30, 2006State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 30, 2006State Compliance achieved2 linked violations
August 23, 2006State Formal Notice of Violation issued42 linked violations
July 31, 2006State Compliance achieved2 linked violations
June 30, 2006State Compliance achieved21 linked violations
March 31, 2006State Compliance achieved21 linked violations
November 14, 2005State Public Notification requested1 linked violation
August 12, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 12, 2004State Public Notification requested1 linked violation
February 9, 2004State Public Notification requested1 linked violation
March 20, 2003State Administrative/Compliance Order without penalty issued3 linked violations
March 20, 2003State Administrative/Compliance Order without penalty issued2 linked violations
February 13, 2001State Public Notification requested2 linked violations
February 9, 1999State Public Notification requested2 linked violations
December 9, 1998State Administrative/Compliance Order without penalty issued1 linked violation

Contact

COTTO LAUREL

787-620-2277

PONCE, PR 00733