Is COTO SUR required to publish a Consumer Confidence Report?

Yes. COTO SUR 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 COTO SUR’s next Consumer Confidence Report due?

COTO SUR’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.

SANTURCE, PR · Manati Municipio County

COTO SUR Water System

Consumer Confidence Report status

COTO SUR 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 no open violations for COTO SUR.

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): PR0002962
System type: Community Water System
Population served: 15,013
Service connections: 5,623
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

COTO SUR is one of 61 community water systems in Puerto Rico in the 10,001 to 100,000 people size category, serving 15,013 people from surface water.

As of August 1, 2026, its federal record holds 28 entries between 1994 and 1998, all of which EPA lists as closed. Nothing has been added since 1998.

Of the 28, 25 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 synthetic organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
2,4-D
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
LASSO
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Atrazine
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Carbofuran
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Chlordane
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Dalapon
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Dinoseb
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Diquat
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Simazine
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Glyphosate
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Heptachlor
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Heptachlor epoxide
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
Toxaphene
October 1, 1997 – December 31, 1997
Archived
Monitoring, Regular
—
OXAMYL
October 1, 1997 – December 31, 1997
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
July 1, 1996 – September 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	2,4-D	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	LASSO	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Atrazine	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Benzo(a)pyrene	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Carbofuran	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Chlordane	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Dalapon	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Dinoseb	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Diquat	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Simazine	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Glyphosate	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Heptachlor	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Heptachlor epoxide	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	Toxaphene	—	Archived
October 1, 1997 – December 31, 1997	Monitoring, Regular	OXAMYL	—	Archived
July 1, 1996 – September 30, 1996	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
May 1, 1994 – May 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived

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

Enforcement actions

November 10, 1998State Public Notification requested1 linked violation
February 20, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 20, 1997State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
August 1, 1996State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 29, 1994State Public Notification received1 linked violation

Common questions

Is COTO SUR required to publish a Consumer Confidence Report?: Yes. COTO SUR 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 COTO SUR’s next Consumer Confidence Report due?: COTO SUR’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COTO SUR have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for COTO SUR.
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

COTO SUR

Phone not on record

SANTURCE, PR 00916