PATILLAS, PR · Patillas Municipio County

MARIN ALTO Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 5, 2010. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Patillas Municipio County, PR.

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): PR0004865
System type: Community Water System
Population served: 840
Service connections: 210
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2002 – October 31, 2002
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
May 1, 2002 – May 31, 2002
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2001 – December 31, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2001 – October 31, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2001 – August 31, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2001 – July 31, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2001 – May 31, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2001 – April 30, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2000 – September 30, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2000 – August 31, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2000 – July 31, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 2000 – March 31, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2000 – February 29, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2000 – January 31, 2000
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1999 – June 30, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1998 – August 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1998 – May 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Benzene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Toluene
January 1, 1998 – December 31, 1998
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1998 – December 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1997 – December 31, 1997
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
December 1, 1997 – December 31, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1992 – November 30, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1992 – September 30, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1992 – July 31, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1992 – June 30, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1992 – May 31, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1991 – November 30, 1991
Archived
Monitoring, Regular
—
Barium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Arsenic
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
—
Combined Radium (-226 and -228)
September 1, 1980 – September 30, 1980
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2002 – October 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 2002 – May 31, 2002	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 2001 – December 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 2001 – October 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 2001 – August 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2001 – July 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 2001 – May 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 2001 – April 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
September 1, 2000 – September 30, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 2000 – August 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2000 – July 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 2000 – March 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
February 1, 2000 – February 29, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 2000 – January 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1999 – June 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1998 – August 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1998 – May 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1998 – April 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Benzene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Toluene	—	Archived
January 1, 1998 – December 31, 1998	Monitoring, Regular	Ethylbenzene	—	Archived
December 1, 1997 – December 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1997 – December 31, 1997	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1992 – November 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 1992 – September 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1992 – July 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 1, 1992 – June 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1992 – May 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1991 – November 30, 1991	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	Arsenic	—	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 1, 1980 – September 30, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

November 6, 2002State Public Notification requested3 linked violations
August 12, 2002State Public Notification requested4 linked violations
May 13, 2002State Public Notification requested1 linked violation
February 11, 2002State Public Notification requested1 linked violation
December 18, 2001State Public Notification received1 linked violation
October 4, 2001State Public Notification received1 linked violation
September 14, 2001State Public Notification received1 linked violation
July 19, 2001State Public Notification received1 linked violation
June 20, 2001State Public Notification received1 linked violation
February 13, 2001State Public Notification requested3 linked violations
May 9, 2000State Public Notification requested3 linked violations
August 10, 1999State Public Notification requested1 linked violation
May 13, 1999State Public Notification requested3 linked violations
February 23, 1999State Formal Notice of Violation issued21 linked violations
November 10, 1998State Public Notification requested2 linked violations
July 7, 1998State Public Notification received1 linked violation
June 19, 1998State Public Notification received1 linked violation
February 11, 1998State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 6, 1995State Public Notification received1 linked violation
November 5, 1993State Public Notification received1 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
July 21, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 22, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 20, 1992State Public Notification received1 linked violation
November 20, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 30, 1992State Administrative/Compliance Order without penalty issued1 linked violation
October 19, 1992State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
August 21, 1992State Administrative/Compliance Order without penalty issued1 linked violation
August 3, 1992State Administrative/Compliance Order without penalty issued2 linked violations
July 16, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 24, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 1, 1992State Public Notification received17 linked violations
March 21, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 26, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 3, 1990State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

787-620-2277

PATILLAS, PR 00723