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Community Water System · PWS PR0005487

Corozal Urbano

Corozal, Puerto Rico 00783 - drinking water served from surface water sources to 8,619 people, tracked in EPA SDWIS and UCMR5.

8,619
People served
446
EPA violations
287
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 446 drinking-water violations at Corozal Urbano, 64% of them health-based - above the Puerto Rico per-system average, and UCMR5 testing detected 1 PFAS compound.

446
Total EPA violations on record
64%
Health-based (MCL / treatment failure)
8,619
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Corozal Urbano

Corozal Urbano is a local-owned community water system that delivers drinking water to 8,619 residents in Corozal, Puerto Rico (Corozal Municipio County) through 3,228 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 446 total violations for this system , of which 287 (64%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 135 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 131 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 3.4 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Puerto Rico, EPA tracks 458 public water systems serving 3,328,141 people, with 164,144 cumulative violations and 34,657 health-based violations on record. About 100% of systems in the state carry at least one violation, and state-wide the average per system is 358.4 violations. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%).

Corozal Urbano's 446 violations sit above the Puerto Rico average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
8,619
Total Violations
446
Health-Based Violations
287
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
3,228
County
Corozal Municipio
School/Daycare
No
MCL Violations
69
Monitoring Violations
135
Treatment Tech Violations
218

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule TT 131 2011
Surface Water Treatment Rule TT 86 2001
TTHM MCL 48 2020
Cryptosporidium MR 22 2018
E. COLI MR 20 2018
Turbidity MR 20 2018
Total Haloacetic Acids (HAA5) MR 19 2016
TTHM MR 19 2016
Total Haloacetic Acids (HAA5) MCL 13 2016
Coliform (TCR) MCL 8 2013
Surface Water Treatment Rule MR 6 2024
Lead and Copper Rule MR 5 2016
OXAMYL MR 4 2015
Carbofuran MR 4 2015
Consumer Confidence Rule Other 4 2020
Coliform (TCR) MR 2 1998
Mercury MR 1 1983
Interim Enhanced Surface Water Treatment Rule MR 1 2004
Nitrate MR 1 1983
Arsenic MR 1 1983
Gross Alpha, Excl. Radon and U MR 1 1980
Selenium MR 1 1983
Fluoride MR 1 1983
ETHYLENE DIBROMIDE MR 1 2006
Barium MR 1 1983
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2006
CARBON, TOTAL TT 1 2004
Glyphosate MR 1 2008
Combined Radium (-226 and -228) MR 1 1980
Coliform (Pre-TCR) Other 1 1991

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeS 8/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFBA 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 8/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFMBA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/21/2023 <6.00 ppt 6.00 ppt Not Detected
PFHpS 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/21/2023 <20.00 ppt 20.00 ppt Not Detected
PFNA 8/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFBS 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 8/21/2023 <8.00 ppt 8.00 ppt Not Detected
PFOS 8/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/21/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/21/2023 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 8/21/2023 <7.00 ppt 7.00 ppt Not Detected
11Cl-PF3OUdS 8/21/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/21/2023 <2.00 ppt 2.00 ppt Not Detected
PFDoA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/21/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 7/26/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 7/26/2023 <7.00 ppt 7.00 ppt Not Detected
PFPeS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 7/26/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/26/2023 3.40 ppt 3.00 ppt Detected
PFOS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/26/2023 <2.00 ppt 2.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Corozal Urbano.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PR0005487 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Puerto Rico Drinking Water Authority

Puerto Rico's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find PR regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Surface Water Treatment Rule MR 6 SDWIS / PR0005487 / 0200
2020 TTHM MCL 48 SDWIS / PR0005487 / 2950
2020 Consumer Confidence Rule Other 4 SDWIS / PR0005487 / 7000
2018 Cryptosporidium MR 22 SDWIS / PR0005487 / 3015
2018 E. COLI MR 20 SDWIS / PR0005487 / 3014
2018 Turbidity MR 20 SDWIS / PR0005487 / 0100
2016 Total Haloacetic Acids (HAA5) MR 19 SDWIS / PR0005487 / 2456
2016 TTHM MR 19 SDWIS / PR0005487 / 2950
2016 Total Haloacetic Acids (HAA5) MCL 13 SDWIS / PR0005487 / 2456
2016 Lead and Copper Rule MR 5 SDWIS / PR0005487 / 5000
2015 OXAMYL MR 4 SDWIS / PR0005487 / 2036
2015 Carbofuran MR 4 SDWIS / PR0005487 / 2046
2013 Coliform (TCR) MCL 8 SDWIS / PR0005487 / 3100
2011 Interim Enhanced Surface Water Treatment Rule TT 131 SDWIS / PR0005487 / 0300
2008 Glyphosate MR 1 SDWIS / PR0005487 / 2034

How Corozal Urbano Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Corozal Urbano Puerto Rico avg Federal benchmark
Total violations 446 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 287 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 8,619 7,267 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 458 regulated public water systems in Puerto Rico.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Corozal Urbano water safe to drink? ▼
Corozal Urbano (PWS ID: PR0005487) has 446 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 8,619 people using Surface Water sources.
How many people does Corozal Urbano serve? ▼
Corozal Urbano serves 8,619 people in Corozal, Puerto Rico. It is a Local-owned system using Surface Water water sources with 3,228 service connections.
What type of violations does Corozal Urbano have? ▼
Corozal Urbano has 446 total violations: 287 health-based violations (MCL exceedances or treatment failures), 135 monitoring/reporting violations, and 218 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Corozal Urbano water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Corozal Urbano's water supply: PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Corozal Urbano use? ▼
Corozal Urbano uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.