ARROYO

PR — Community Water System — PWSID: PR0004575

System Information

PWSID	PR0004575
System Name	ARROYO
System Type	Community Water System
Water Source	Ground Water
Activity Status	Non-Inventory
Owner Type	Local
EPA Region	02
Serves School	Yes
Wholesaler	No
First Reported	Mar 1, 1980
Last Reported	Dec 23, 2025

Location & Contact

State	PR
City	ARROYO
ZIP Code	00714
Address	CARR. 753
Organization	—
Phone	787-620-2277

Population & Service

Population Served	21,524
Service Connections	5,381

Drinking Water Violations (22)

This water system has 22 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
Feb 1, 2000	Feb 29, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 29, 2000	Total Coliform Rule
Nov 1, 1999	Nov 30, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Nov 30, 1999	Total Coliform Rule
Mar 1, 1999	Mar 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Mar 31, 1999	Total Coliform Rule
Jan 1, 1999	Jan 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1999	Total Coliform Rule
Nov 1, 1998	Nov 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Nov 30, 1998	Total Coliform Rule
Oct 1, 1998	Dec 31, 1998	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 1998	Inorganic Chemicals
Oct 1, 1998	Dec 31, 1998	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 1998	Inorganic Chemicals
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1998	Total Coliform Rule
Mar 1, 1996	Mar 31, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Mar 31, 1996	Total Coliform Rule
Sep 1, 1994	Sep 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jul 31, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Apr 1, 1994	Apr 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 1994	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 1993	Total Coliform Rule
Oct 1, 1992	Oct 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1992	Total Coliform Rule
Jul 1, 1992	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jul 1, 1993	Lead and Copper Rule
May 1, 1992	May 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1992	Total Coliform Rule
Feb 1, 1992	Feb 29, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 29, 1992	Total Coliform Rule
Apr 1, 1991	Apr 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Apr 30, 1991	Total Coliform Rule
Sep 1, 1980	Sep 30, 1980	Combined Radium (-226 and -228)	MR	No	Yes	—	5 pCi/L	—	Archived	Sep 30, 1980	Radionuclides and Revised Rad Rule
—	—		—	No	No	—	—	—	—	—	—
—	—		—	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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