Is CAGUAS SUR required to publish a Consumer Confidence Report?

Yes. CAGUAS SUR is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is CAGUAS SUR’s next Consumer Confidence Report due?

CAGUAS SUR’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

CAGUAS, PR · Caguas Municipio County

CAGUAS SUR Water System

Consumer Confidence Report status

CAGUAS SUR must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for CAGUAS SUR.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): PR0005066
System type: Community Water System
Population served: 34,261
Service connections: 12,832
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

CAGUAS SUR is among the 23 largest community water systems in Puerto Rico, serving 34,261 people from surface water.

As of August 1, 2026, its federal record holds 126 entries between 1983 and 2025, all of which EPA lists as closed.

Of the 126, 72 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Surface Water Treatment Rules, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2025 – April 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2025 – March 31, 2025
Archived
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2023 – May 31, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020 – July 17, 2020
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2018 – August 13, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2018 – May 31, 2018
Archived
Monitoring, Source Water (LT2)
—
Cryptosporidium
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
May 1, 2017 – May 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)
—
Cryptosporidium
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
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
Monitoring, Source Water (LT2)
—
Turbidity
October 1, 2016 – October 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
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
September 1, 2016 – September 30, 2016
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
September 1, 2016 – September 30, 2016
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
September 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
October 1, 2015 – October 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
October 1, 2015 – October 31, 2015
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
October 1, 2015 – October 31, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2015 – June 30, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2015 – February 11, 2021
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
July 1, 2014 – September 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
TTHM
July 1, 2014 – September 30, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 4, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2011 – August 31, 2011
Archived
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2011 – February 11, 2021
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2011 – March 31, 2011
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2010 – December 31, 2010
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2010 – July 31, 2010
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2010 – September 30, 2010
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2009 – May 31, 2009
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2009 – February 11, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2006 – September 30, 2006
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Xylenes, Total
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Vinyl chloride
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Benzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Toluene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Ethylbenzene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Styrene
April 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
Endothall
January 1, 2005 – March 31, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2004 – November 30, 2004
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2001 – October 31, 2001
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2001 – February 28, 2001
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 2000 – December 31, 2000
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2000 – September 30, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2000 – September 30, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2000 – August 31, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2000 – July 31, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 2000 – March 31, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 2000 – February 29, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 2000 – January 31, 2000
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1999 – December 31, 1999
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 1999 – November 30, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1999 – November 30, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 1999 – October 31, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1999 – August 31, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1999 – July 31, 1999
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 1999 – June 30, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1999 – June 30, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1999 – May 31, 1999
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1999 – April 30, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1999 – February 28, 1999
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1998 – December 31, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1998 – November 30, 1998
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1998 – August 31, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1996 – September 30, 1996
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1996 – August 31, 1996
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1996 – June 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 1996 – March 31, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1996 – January 31, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1995 – December 31, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1995 – June 30, 1995
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 1995 – February 28, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1994 – August 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1994 – June 30, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1994 – May 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1993 – December 31, 1993
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1993 – November 30, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1992 – October 31, 1992
Archived
Monitoring, Regular
—
Barium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Selenium
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
—
Arsenic
September 30, 1983 – September 29, 1984
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, 2025 – April 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 2025 – March 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
May 1, 2023 – May 31, 2023	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2020 – July 17, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2018 – August 13, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
May 1, 2018 – May 31, 2018	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
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 – July 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	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
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	E. COLI	—	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
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	Turbidity	—	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 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
September 1, 2016 – September 30, 2016	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
September 1, 2016 – September 30, 2016	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
September 1, 2016 – September 30, 2016	Monitoring, Source Water (LT2)	E. COLI	—	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	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2015 – October 31, 2015	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – October 31, 2015	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
October 1, 2015 – October 31, 2015	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – February 11, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring, Routine (IDSE)	TTHM	—	Resolved
July 1, 2014 – August 4, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 2011 – August 31, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2011 – February 11, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – March 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2010 – December 31, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
September 1, 2010 – September 30, 2010	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2010 – July 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2010 – December 31, 2010	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2010 – January 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2009 – May 31, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2009 – February 11, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Xylenes, Total	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	DICHLOROMETHANE	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	o-Dichlorobenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Vinyl chloride	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Carbon tetrachloride	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	1,2-Dichloropropane	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Trichloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Tetrachloroethylene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	CHLOROBENZENE	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Benzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Toluene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Ethylbenzene	—	Archived
April 1, 2005 – June 30, 2005	Monitoring, Regular	Styrene	—	Archived
January 1, 2005 – March 31, 2005	Monitoring, Regular	Endothall	—	Archived
November 1, 2004 – November 30, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
October 1, 2001 – October 31, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
February 1, 2001 – February 28, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
December 1, 2000 – December 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 2000 – September 30, 2000	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 2000 – September 30, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 2000 – August 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 2000 – July 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
March 1, 2000 – March 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
February 1, 2000 – February 29, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 2000 – January 31, 2000	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1999 – December 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1999 – November 30, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
November 1, 1999 – November 30, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
October 1, 1999 – October 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 1999 – August 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1999 – July 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1999 – June 30, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
June 1, 1999 – June 30, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
May 1, 1999 – May 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1999 – April 30, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
February 1, 1999 – February 28, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1998 – December 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1998 – November 30, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1998 – September 30, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1998 – August 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1996 – September 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 1996 – August 31, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1996 – June 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
March 1, 1996 – March 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1996 – January 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1995 – December 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1995 – June 30, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
March 1, 1995 – March 31, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
February 1, 1995 – February 28, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1994 – August 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1994 – June 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
May 1, 1994 – May 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1994 – April 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1993 – December 31, 1993	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1993 – November 30, 1993	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
October 1, 1992 – October 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Barium	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Selenium	—	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	Arsenic	—	Archived

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

Enforcement actions

February 24, 2026State Formal Notice of Violation issued1 linked violation
February 18, 2026State Formal Notice of Violation issued1 linked violation
December 31, 2025State Compliance achieved1 linked violation
October 31, 2025State Compliance achieved1 linked violation
June 24, 2025State Formal Notice of Violation issued1 linked violation
May 31, 2025State Compliance achieved1 linked violation
May 30, 2025State Formal Notice of Violation issued1 linked violation
June 30, 2023State Formal Notice of Violation issued1 linked violation
June 30, 2023State Compliance achieved1 linked violation
February 11, 2021State Compliance achieved3 linked violations
July 17, 2020State Compliance achieved1 linked violation
August 13, 2019State Compliance achieved1 linked violation
July 10, 2019State Formal Notice of Violation issued1 linked violation
July 20, 2018State Formal Notice of Violation issued1 linked violation
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 15, 2017State Formal Notice of Violation issued6 linked violations
March 31, 2017State Compliance achieved6 linked violations
December 13, 2016State Formal Notice of Violation issued3 linked violations
December 6, 2016State Formal Notice of Violation issued3 linked violations
October 26, 2016State Civil Case filed in State court1 linked violation
September 30, 2016State Compliance achieved1 linked violation
September 30, 2016State Compliance achieved1 linked violation
April 14, 2016State Civil Case filed in State court1 linked violation
April 10, 2016State Civil Case filed in State court1 linked violation
February 9, 2016State Civil Case filed in State court3 linked violations
November 18, 2015State Formal Notice of Violation issued3 linked violations
September 30, 2015State Compliance achieved2 linked violations
September 30, 2015State Compliance achieved2 linked violations
August 13, 2015State Formal Notice of Violation issued2 linked violations
March 31, 2015State Formal Notice of Violation issued1 linked violation
December 31, 2014State Compliance achieved2 linked violations
October 29, 2014State Formal Notice of Violation issued2 linked violations
August 4, 2014State Compliance achieved1 linked violation
March 31, 2012State Compliance achieved1 linked violation
March 31, 2012State Compliance achieved3 linked violations
December 11, 2011State Formal Notice of Violation issued1 linked violation
December 11, 2011State Formal Notice of Violation issued1 linked violation
September 7, 2011State Formal Notice of Violation issued3 linked violations
August 18, 2011State Compliance achieved1 linked violation
March 31, 2011State Compliance achieved1 linked violation
January 1, 2011State Compliance achieved1 linked violation
July 31, 2010State Compliance achieved3 linked violations
November 30, 2009State Compliance achieved3 linked violations
August 25, 2009State Formal Notice of Violation issued1 linked violation
August 25, 2009State Formal Notice of Violation issued1 linked violation
August 25, 2009State Formal Notice of Violation issued1 linked violation
June 24, 2008State Civil Case filed in State court1 linked violation
March 31, 2008State Compliance achieved1 linked violation
March 31, 2007State Compliance achieved1 linked violation
August 23, 2006State Formal Notice of Violation issued22 linked violations
June 30, 2006State Compliance achieved2 linked violations
May 13, 2002State Public Notification requested1 linked violation
December 18, 2001State Public Notification received1 linked violation
February 13, 2001State Public Notification requested3 linked violations
February 8, 2000State Public Notification requested4 linked violations
November 12, 1999State Public Notification requested3 linked violations
August 10, 1999State Public Notification requested4 linked violations
May 13, 1999State Public Notification requested4 linked violations
February 22, 1999State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
February 9, 1999State Public Notification requested2 linked violations
November 10, 1998State Public Notification requested2 linked violations
September 1, 1997State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 3, 1997State Public Notification received1 linked violation
November 6, 1996State Public Notification requested4 linked violations
August 8, 1996State Public Notification requested1 linked violation
February 5, 1996State Administrative/Compliance Order without penalty issued2 linked violations
November 28, 1995State Violation/Reminder Notice2 linked violations
October 25, 1995State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 6, 1995State Public Notification received2 linked violations
July 24, 1995State Public Notification received1 linked violation
April 28, 1995State Public Notification received1 linked violation
March 28, 1995State Public Notification received1 linked violation
October 28, 1994State Public Notification received1 linked violation
August 19, 1994State Public Notification received1 linked violation
June 29, 1994State Public Notification received1 linked violation
May 30, 1994State Public Notification received1 linked violation
March 4, 1994State Administrative/Compliance Order without penalty issued1 linked violation
January 29, 1994State Public Notification received2 linked violations
December 9, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
November 5, 1993State Public Notification received1 linked violation
October 5, 1993State Violation/Reminder Notice1 linked violation
September 22, 1993State Public Notification received1 linked violation
August 19, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 28, 1993State Public Notification received1 linked violation
November 20, 1992State Public Notification received1 linked violation
July 16, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 18, 1992State Public Notification received1 linked violation
September 30, 1989State Public Notification received626 linked violations

Common questions

Is CAGUAS SUR required to publish a Consumer Confidence Report?: Yes. CAGUAS SUR is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CAGUAS SUR’s next Consumer Confidence Report due?: CAGUAS SUR’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CAGUAS SUR have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for CAGUAS SUR.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

CAGUAS SUR

787-620-2277

CAGUAS, PR 00725