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Community Water System · PWS PR0002611

Cubuy

Canovanas, Puerto Rico 00729 - drinking water served from surface water sources to 1,733 people, tracked in EPA SDWIS and UCMR5.

1,733
People served
336
EPA violations
83
Health-based
Untested
UCMR5 result

The verdict

EPA records 336 drinking-water violations at Cubuy, 25% of them health-based - below the Puerto Rico per-system average.

336
Total EPA violations on record
25%
Health-based (MCL / treatment failure)
1,733
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Cubuy

Cubuy is a local-owned community water system that delivers drinking water to 1,733 residents in Canovanas, Puerto Rico (Juncos Municipio County) through 649 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 336 total violations for this system , of which 83 (25%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 217 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 51 violations (TT, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Cubuy's 336 violations sit below 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.

Population Served
1,733
Total Violations
336
Health-Based Violations
83
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
649
County
Juncos Municipio
School/Daycare
No
MCL Violations
15
Monitoring Violations
217
Treatment Tech Violations
68

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 51 2001
Surface Water Treatment Rule MR 16 2016
Lead and Copper Rule MR 16 2015
E. COLI MR 13 2020
Long Term 2 Enhanced Surface Water Treatment Rule TT 8 2018
Coliform (TCR) MR 7 2015
Interim Enhanced Surface Water Treatment Rule TT 7 2022
Coliform (TCR) MCL 6 2012
Total Haloacetic Acids (HAA5) MR 6 2015
TTHM MR 6 2015
Consumer Confidence Rule Other 5 2022
2,4,5-TP MR 4 2012
2,4-D MR 4 2012
LASSO MR 4 2011
Benzo(a)pyrene MR 4 2011
Di(2-ethylhexyl) adipate MR 4 2011
Dinoseb MR 4 2012
Endothall MR 4 2012
Simazine MR 4 2011
Chromium MR 4 2007
Total Haloacetic Acids (HAA5) MCL 4 2007
Di(2-ethylhexyl) phthalate MR 4 2011
Dalapon MR 4 2012
Public Notice Other 4 2018
Barium MR 4 2007
Cadmium MR 4 2007
Atrazine MR 4 2011
Picloram MR 4 2012
TTHM MCL 4 2007
Pentachlorophenol MR 4 2012

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 Cubuy.

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 PR0002611 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
2023 Long Term 2 Enhanced Surface Water Treatment Rule MR 1 SDWIS / PR0002611 / 0800
2022 Interim Enhanced Surface Water Treatment Rule TT 7 SDWIS / PR0002611 / 0300
2022 Consumer Confidence Rule Other 5 SDWIS / PR0002611 / 7000
2020 E. COLI MR 13 SDWIS / PR0002611 / 3014
2020 Cryptosporidium MR 3 SDWIS / PR0002611 / 3015
2020 Turbidity MR 1 SDWIS / PR0002611 / 0100
2019 Revised Total Coliform Rule MCL 1 SDWIS / PR0002611 / 8000
2018 Long Term 2 Enhanced Surface Water Treatment Rule TT 8 SDWIS / PR0002611 / 0800
2018 Public Notice Other 4 SDWIS / PR0002611 / 7500
2016 Surface Water Treatment Rule MR 16 SDWIS / PR0002611 / 0200
2015 Lead and Copper Rule MR 16 SDWIS / PR0002611 / 5000
2015 Coliform (TCR) MR 7 SDWIS / PR0002611 / 3100
2015 Total Haloacetic Acids (HAA5) MR 6 SDWIS / PR0002611 / 2456
2015 TTHM MR 6 SDWIS / PR0002611 / 2950
2015 Carbofuran MR 3 SDWIS / PR0002611 / 2046

How Cubuy Compares

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

Metric Cubuy Puerto Rico avg Federal benchmark
Total violations 336 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 83 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,733 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 Cubuy water safe to drink? ▼
Cubuy (PWS ID: PR0002611) has 336 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,733 people using Surface Water sources.
How many people does Cubuy serve? ▼
Cubuy serves 1,733 people in Canovanas, Puerto Rico. It is a Local-owned system using Surface Water water sources with 649 service connections.
What type of violations does Cubuy have? ▼
Cubuy has 336 total violations: 83 health-based violations (MCL exceedances or treatment failures), 217 monitoring/reporting violations, and 68 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Cubuy water? ▼
No PFAS testing data is available for Cubuy under the EPA's UCMR5 monitoring program.
What water source does Cubuy use? ▼
Cubuy 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. 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.