Is CUYON WATER SERVICES INC. required to publish a Consumer Confidence Report?

Yes. CUYON WATER SERVICES INC. 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 CUYON WATER SERVICES INC.’s next Consumer Confidence Report due?

CUYON WATER SERVICES INC.’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.

AIBONITO, PR · Aibonito Municipio County

CUYON WATER SERVICES INC. Water System

Consumer Confidence Report status

CUYON WATER SERVICES INC. 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 1 item for CUYON WATER SERVICES INC. that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): PR0505055
System type: Community Water System
Population served: 427
Service connections: 160
Ownership: privately owned
Water source: groundwater (wells)

CUYON WATER SERVICES INC. is one of 449 community water systems in Puerto Rico in the 500 or fewer people size category, serving 427 people from groundwater.

As of August 1, 2026, its federal record holds 95 entries between 1993 and 2024, of which 1 remains open; none are health-based.

Of the 95, 79 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 Total Coliform Rules, the Surface Water Treatment Rules, and the Lead and Copper Rule.

Violation history

LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2016 – February 29, 2016
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2011 – May 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2011 – April 30, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2009 – September 30, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2009 – April 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2007 – December 31, 2007
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2007 – May 31, 2007
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2006 – October 31, 2006
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2006 – January 31, 2006
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2005 – December 31, 2005
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
November 1, 2005 – November 30, 2005
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
October 1, 2005 – October 31, 2005
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2005 – August 31, 2005
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2005 – July 31, 2005
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
February 1, 2005 – February 28, 2005
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
December 1, 2004 – December 31, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
October 1, 2004 – October 31, 2004
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
September 1, 2004 – September 30, 2004
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2004 – August 31, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2004 – July 31, 2004
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
July 1, 2004 – July 31, 2004
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 2004 – March 31, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2003 – October 31, 2003
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
September 1, 2003 – September 30, 2003
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2003 – August 31, 2003
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
July 1, 2003 – July 31, 2003
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2003 – May 31, 2003
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
May 1, 2003 – May 31, 2003
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
December 1, 2002 – December 31, 2002
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
October 1, 2002 – October 31, 2002
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2002 – August 31, 2002
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2002 – August 31, 2002
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
April 1, 2002 – April 30, 2002
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
December 1, 2001 – December 31, 2001
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2001 – November 30, 2001
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
November 1, 2001 – November 30, 2001
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
October 1, 2001 – October 31, 2001
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
September 1, 2001 – September 30, 2001
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
March 1, 2001 – March 31, 2001
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
December 1, 2000 – December 31, 2000
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
August 1, 2000 – August 31, 2000
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2000 – August 31, 2000
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
March 1, 2000 – March 31, 2000
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2000 – February 29, 2000
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
February 1, 2000 – February 29, 2000
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2000 – January 31, 2000
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Surface Water Treatment Rule
January 1, 2000 – January 31, 2000
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 1999 – December 31, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1999 – November 30, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1999 – August 31, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1999 – June 30, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1999 – May 31, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1999 – April 30, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1999 – March 31, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1999 – February 28, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1998 – December 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1998 – October 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1998 – June 30, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1998 – February 28, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1997 – December 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1997 – October 31, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1997 – April 30, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1997 – March 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1996 – July 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
May 1, 1996 – May 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1996 – February 29, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1996 – January 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1995 – August 31, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1995 – June 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1994 – December 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1994 – October 31, 1994
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1994 – September 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1994 – April 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1994 – February 28, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1993 – October 31, 1993
Archived

Unaddressed no corrective action on record yetArchived 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 17, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
February 1, 2016 – February 29, 2016	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 2011 – June 30, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 2011 – May 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2011 – April 30, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2009 – April 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2008 – November 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2008 – October 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 2007 – May 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 2006 – October 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 2006 – January 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 2005 – December 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 2005 – December 31, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
November 1, 2005 – November 30, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
October 1, 2005 – October 31, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
August 1, 2005 – August 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 2005 – July 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
February 1, 2005 – February 28, 2005	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 2004 – December 31, 2004	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 2004 – December 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 2004 – October 31, 2004	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
September 1, 2004 – September 30, 2004	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
August 1, 2004 – August 31, 2004	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
July 1, 2004 – July 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 2004 – July 31, 2004	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
March 1, 2004 – March 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 2003 – October 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 2003 – September 30, 2003	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
August 1, 2003 – August 31, 2003	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
July 1, 2003 – July 31, 2003	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
May 1, 2003 – May 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 2003 – May 31, 2003	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 2002 – December 31, 2002	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
October 1, 2002 – October 31, 2002	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
August 1, 2002 – August 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 2002 – August 31, 2002	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
April 1, 2002 – April 30, 2002	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 2001 – December 31, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
November 1, 2001 – November 30, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 2001 – November 30, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
October 1, 2001 – October 31, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
September 1, 2001 – September 30, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
March 1, 2001 – March 31, 2001	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 2000 – December 31, 2000	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 2000 – August 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
August 1, 2000 – August 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
March 1, 2000 – March 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
February 1, 2000 – February 29, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 2000 – February 29, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
January 1, 2000 – January 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 2000 – January 31, 2000	Monitoring of Treatment (SWTR-Unfilt/GWR)	Surface Water Treatment Rule	—	Archived
December 1, 1999 – December 31, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
November 1, 1999 – November 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1999 – August 31, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
June 1, 1999 – June 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
May 1, 1999 – May 31, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1999 – April 30, 1999	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
March 1, 1999 – March 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1999 – February 28, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1998 – December 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1998 – October 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1998 – August 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1998 – July 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1998 – June 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1998 – April 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1998 – February 28, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1997 – December 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1997 – October 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1997 – April 30, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 1997 – March 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1996 – August 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1996 – July 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1996 – June 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1996 – May 31, 1996	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1996 – April 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1996 – February 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1996 – January 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1995 – October 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1995 – August 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1995 – June 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1994 – December 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1994 – November 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1994 – October 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1994 – September 30, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1994 – May 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1994 – April 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1994 – February 28, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1993 – October 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

March 26, 2025State Public Notification requested1 linked violation
March 26, 2025State Formal Notice of Violation issued1 linked violation
April 24, 2019State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 30, 2012State Compliance achieved29 linked violations
August 13, 2011State Formal Notice of Violation issued3 linked violations
March 24, 2010State Compliance achieved6 linked violations
September 11, 2009State Boil Water Order10 linked violations
March 30, 2006State Public Notification issued1 linked violation
November 15, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 15, 2005State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
September 15, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 15, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 29, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 29, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 5, 2004State Violation/Reminder Notice2 linked violations
October 18, 2004State Violation/Reminder Notice1 linked violation
September 13, 2004State Violation/Reminder Notice3 linked violations
August 13, 2004State Violation/Reminder Notice1 linked violation
July 12, 2004State Violation/Reminder Notice1 linked violation
May 11, 2004State Public Notification issued1 linked violation
May 11, 2004State Violation/Reminder Notice1 linked violation
April 27, 2004State Violation/Reminder Notice1 linked violation
March 24, 2004State Violation/Reminder Notice1 linked violation
February 12, 2004State Violation/Reminder Notice1 linked violation
January 21, 2004State Violation/Reminder Notice1 linked violation
December 11, 2003State Violation/Reminder Notice2 linked violations
November 14, 2003State Violation/Reminder Notice1 linked violation
October 16, 2003State Violation/Reminder Notice1 linked violation
September 18, 2003State Violation/Reminder Notice1 linked violation
August 12, 2003State Violation/Reminder Notice1 linked violation
July 29, 2003State Violation/Reminder Notice2 linked violations
July 23, 2003State Violation/Reminder Notice2 linked violations
November 6, 2002State Violation/Reminder Notice1 linked violation
October 10, 2002State Violation/Reminder Notice2 linked violations
September 10, 2002State Violation/Reminder Notice1 linked violation
August 8, 2002State Violation/Reminder Notice1 linked violation
July 10, 2002State Violation/Reminder Notice1 linked violation
June 13, 2002State Violation/Reminder Notice1 linked violation
February 12, 2002State Violation/Reminder Notice2 linked violations
December 28, 2001State Violation/Reminder Notice2 linked violations
December 13, 2001State Violation/Reminder Notice1 linked violation
November 14, 2001State Violation/Reminder Notice1 linked violation
October 22, 2001State Violation/Reminder Notice2 linked violations
September 11, 2001State Violation/Reminder Notice1 linked violation
August 9, 2001State Violation/Reminder Notice1 linked violation
July 12, 2001State Violation/Reminder Notice1 linked violation
May 19, 2001State Violation/Reminder Notice1 linked violation
May 14, 2001State Public Notification issued1 linked violation
April 18, 2001State Violation/Reminder Notice1 linked violation
March 10, 2001State Violation/Reminder Notice1 linked violation
February 13, 2001State Violation/Reminder Notice1 linked violation
January 11, 2001State Violation/Reminder Notice1 linked violation
December 12, 2000State Violation/Reminder Notice1 linked violation
May 3, 2000State Violation/Reminder Notice1 linked violation
April 12, 2000State Violation/Reminder Notice2 linked violations
February 2, 2000State Violation/Reminder Notice1 linked violation
January 12, 2000State Violation/Reminder Notice1 linked violation
December 7, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 15, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 5, 1999State Violation/Reminder Notice1 linked violation
September 8, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 10, 1999State Violation/Reminder Notice1 linked violation
July 8, 1999State Violation/Reminder Notice1 linked violation
June 8, 1999State Violation/Reminder Notice1 linked violation
May 13, 1999State Violation/Reminder Notice1 linked violation
April 13, 1999State Violation/Reminder Notice1 linked violation
March 12, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 15, 1999State Violation/Reminder Notice2 linked violations
November 4, 1998State Violation/Reminder Notice1 linked violation
October 6, 1998State Violation/Reminder Notice1 linked violation
August 11, 1998State Violation/Reminder Notice1 linked violation
July 17, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 6, 1998State Violation/Reminder Notice1 linked violation
May 15, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 24, 1998State Violation/Reminder Notice1 linked violation
March 12, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 17, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 12, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 5, 1997State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 13, 1997State Violation/Reminder Notice1 linked violation
October 14, 1997State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 5, 1997State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 6, 1997State Violation/Reminder Notice1 linked violation
May 6, 1997State Violation/Reminder Notice1 linked violation
October 21, 1996State Violation/Reminder Notice1 linked violation
September 16, 1996State Violation/Reminder Notice1 linked violation
August 7, 1996State Violation/Reminder Notice1 linked violation
July 22, 1996State Public Notification issued1 linked violation
June 10, 1996State Violation/Reminder Notice1 linked violation
May 2, 1996State Public Notification issued1 linked violation
April 10, 1996State Violation/Reminder Notice1 linked violation
March 5, 1996State Violation/Reminder Notice1 linked violation
December 7, 1995State Violation/Reminder Notice1 linked violation
November 14, 1995State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
October 4, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 11, 1995State Public Notification issued1 linked violation
June 6, 1995State Violation/Reminder Notice1 linked violation
April 10, 1995State Violation/Reminder Notice1 linked violation
February 6, 1995State Violation/Reminder Notice1 linked violation
January 10, 1995State Violation/Reminder Notice1 linked violation
December 5, 1994State Violation/Reminder Notice1 linked violation
April 27, 1994State Public Notification issued1 linked violation
March 24, 1994State Violation/Reminder Notice1 linked violation
February 28, 1994State Violation/Reminder Notice2 linked violations
December 15, 1993State Violation/Reminder Notice1 linked violation
July 27, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 22, 1993State Boil Water Order1 linked violation
March 16, 1992State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
January 31, 1992State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 21, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 30, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
July 18, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
April 8, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
March 15, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
March 11, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
September 14, 1990State Boil Water Ordergeneral compliance action — not tied to a specific violation on record

Common questions

Is CUYON WATER SERVICES INC. required to publish a Consumer Confidence Report?: Yes. CUYON WATER SERVICES INC. 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 CUYON WATER SERVICES INC.’s next Consumer Confidence Report due?: CUYON WATER SERVICES INC.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CUYON WATER SERVICES INC. have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for CUYON WATER SERVICES INC. that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

CUYON

787-620-2277

AIBONITO, PR 00653