RAYO

PR — Community Water System — PWSID: PR0003573

System Information

PWSID	PR0003573
System Name	RAYO
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	02
Serves School	No
Wholesaler	No
First Reported	Mar 1, 1980
Last Reported	Dec 23, 2025

Location & Contact

State	PR
City	SABANA GRANDE
ZIP Code	00637
Address	CARR. 117 KM. 10 INT
Organization	RAYO
Phone	787-620-2277

Population & Service

Population Served	3,855
Service Connections	1,444

Drinking Water Violations (26)

This water system has 26 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Jul 1, 2022	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 11, 2022	Consumer Confidence Rule
Jul 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 6, 2020	Consumer Confidence Rule
Jul 1, 2020	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 6, 2020	Consumer Confidence Rule
Jan 1, 2013	Dec 31, 2013	Mercury	MR	No	Yes	—	0.002 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Selenium	MR	No	Yes	—	0.05 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Chromium	MR	No	Yes	—	0.1 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Dec 31, 2013	Barium	MR	No	Yes	—	2 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2013	Mar 31, 2013	Nitrate	MR	No	Yes	—	10 mg/L	—	Archived	Mar 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Dec 31, 2013	Arsenic Rule
Jan 1, 2013	Dec 31, 2013	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Archived	Dec 31, 2013	Inorganic Chemicals
Jan 1, 2011	Jan 31, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 2011	Total Coliform Rule
Jan 1, 2005	Dec 31, 2005	Asbestos	MR	No	Yes	—	7 MFL	—	Archived	Dec 31, 2005	Inorganic Chemicals
Apr 1, 2004	Apr 30, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 2004	Total Coliform Rule
Apr 1, 1999	Apr 30, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 1999	Total Coliform Rule
Apr 1, 1999	Apr 30, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 1999	Total Coliform Rule
Oct 1, 1998	Oct 31, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1998	Total Coliform Rule
Oct 1, 1998	Oct 31, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1998	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Sep 30, 1998	Total Coliform Rule
Apr 1, 1998	Apr 30, 1998	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1998	Total Coliform Rule
Oct 1, 1997	Oct 31, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1997	Total Coliform Rule
Oct 1, 1997	Oct 31, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1997	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1996	Total Coliform Rule
—	—		—	No	No	—	—	—	—	—	—

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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