PONCE, PR · Ponce Municipio County

GUARAGUAO 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): PR0004114
System type: Community Water System
Population served: 961
Service connections: 360
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – July 4, 2022
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 2020 – September 30, 2020
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 2020 – September 30, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020 – August 10, 2020
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2019 – April 30, 2019
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2019 – January 31, 2019
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2018 – December 31, 2018
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2018 – August 13, 2019
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2018 – December 31, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2016 – September 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2016 – April 30, 2016
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2016 – March 31, 2016
Archived
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2015 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2015 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2014 – September 30, 2016
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2014 – December 31, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 20, 2014
Resolved
Monitoring, Regular
—
Simazine
October 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
LASSO
October 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Atrazine
October 1, 2013 – December 31, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2013 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2013 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2012 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2012 – September 30, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
August 1, 2011 – August 31, 2011
Archived
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2011 – September 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2011 – September 30, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
November 1, 2010 – November 30, 2010
Archived
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2010 – December 31, 2010
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Radium-226
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2010 – December 31, 2010
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2009 – June 1, 2010
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2009 – September 30, 2016
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2006 – June 1, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2005 – October 31, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2004 – August 31, 2004
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1999 – September 30, 1999
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 1998 – December 31, 1998
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1998 – October 31, 1998
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 1998 – April 30, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1998 – March 31, 1998
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1998 – January 31, 1998
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 1994 – October 31, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
Chromium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Cadmium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Nitrate
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
—
Gross Alpha, Excl. Radon and U
September 1, 1980 – September 30, 1980
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2022 – July 4, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
July 1, 2020 – August 10, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2019 – April 30, 2019	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2019 – January 31, 2019	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2018 – August 13, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Routine (IDSE)	TTHM	—	Resolved
April 1, 2016 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2016 – April 30, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 2016 – March 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 2015 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2015 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2014 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2014 – December 31, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2014 – August 20, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring, Regular	Simazine	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring, Regular	LASSO	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2013 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2013 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2012 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2012 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 1, 2011 – August 31, 2011	Monitoring, Source Water (LT2)	Cryptosporidium	—	Archived
July 1, 2011 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
November 1, 2010 – November 30, 2010	Monitoring, Source Water (LT2)	Cryptosporidium	—	Archived
July 1, 2010 – December 31, 2010	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2009 – June 1, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2009 – September 30, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2006 – June 1, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2005 – October 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2004 – August 31, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 1999 – September 30, 1999	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
December 1, 1998 – December 31, 1998	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1998 – October 31, 1998	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
April 1, 1998 – April 30, 1998	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
March 1, 1998 – March 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 1998 – January 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1994 – October 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1993 – December 31, 1993	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	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	Nitrate	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Mercury	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Fluoride	—	Archived
September 1, 1980 – September 30, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

July 4, 2022State Compliance achieved1 linked violation
December 31, 2020State Compliance achieved2 linked violations
November 30, 2020State Formal Notice of Violation issued2 linked violations
August 10, 2020State Compliance achieved1 linked violation
March 31, 2020State Compliance achieved1 linked violation
March 31, 2020State Compliance achieved1 linked violation
August 13, 2019State Compliance achieved1 linked violation
July 10, 2019State Formal Notice of Violation issued1 linked violation
June 30, 2019State Compliance achieved1 linked violation
June 30, 2019State Compliance achieved5 linked violations
June 27, 2019State Formal Notice of Violation issued1 linked violation
May 31, 2019State Compliance achieved1 linked violation
March 31, 2019State Compliance achieved2 linked violations
February 19, 2019State Formal Notice of Violation issued2 linked violations
February 3, 2017State Other2 linked violations
September 30, 2016State Compliance achieved11 linked violations
May 17, 2016State Formal Notice of Violation issued1 linked violation
October 23, 2015State Formal Notice of Violation issued1 linked violation
May 8, 2015State Formal Notice of Violation issued1 linked violation
December 31, 2014State Compliance achieved1 linked violation
October 1, 2014State Compliance achieved3 linked violations
September 10, 2014State Formal Notice of Violation issued2 linked violations
September 10, 2014State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 20, 2014State Compliance achieved1 linked violation
March 19, 2014State Formal Notice of Violation issued1 linked violation
December 31, 2013State Compliance achieved1 linked violation
October 24, 2013State Formal Notice of Violation issued3 linked violations
October 24, 2013State Formal Notice of Violation issued1 linked violation
May 1, 2013State Formal Notice of Violation issued1 linked violation
October 29, 2012State Formal Notice of Violation issued1 linked violation
June 21, 2012State Formal Notice of Violation issued1 linked violation
May 3, 2012State Formal Notice of Violation issued1 linked violation
May 3, 2012State Formal Notice of Violation issued1 linked violation
December 31, 2011State Compliance achieved3 linked violations
December 11, 2011State Formal Notice of Violation issued1 linked violation
December 11, 2011State Formal Notice of Violation issued1 linked violation
August 30, 2011State Compliance achieved1 linked violation
August 25, 2011State Formal Notice of Violation issued1 linked violation
August 18, 2011State Compliance achieved1 linked violation
June 27, 2011State Formal Notice of Violation issued3 linked violations
June 13, 2011State Formal Notice of Violation issued1 linked violation
June 4, 2011State Formal Notice of Violation issued1 linked violation
June 4, 2011State Formal Notice of Violation issued1 linked violation
June 4, 2011State Formal Notice of Violation issued1 linked violation
June 4, 2011State Formal Notice of Violation issued1 linked violation
January 1, 2011State Compliance achieved1 linked violation
June 1, 2010State Compliance achieved2 linked violations
June 1, 2010State Compliance achieved1 linked violation
August 25, 2009State Formal Notice of Violation issued1 linked violation
June 1, 2009State Compliance achieved1 linked violation
August 16, 2007State Formal Notice of Violation issued2 linked violations
January 1, 2007State Compliance achieved2 linked violations
April 30, 2006State Compliance achieved1 linked violation
February 9, 2004State Public Notification requested1 linked violation
November 12, 1999State Public Notification requested1 linked violation
February 9, 1999State Public Notification requested2 linked violations
June 19, 1998State Public Notification received1 linked violation
May 13, 1998State Public Notification requested2 linked violations
July 15, 1997State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 8, 1996State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 22, 1995State Public Notification received1 linked violation
November 30, 1994State Formal Notice of Violation issued1 linked violation
January 29, 1994State Public Notification received1 linked violation
January 22, 1993State Public Notification received1 linked violation

Contact

GUARAGUAO

787-620-2277

PONCE, PR 00731