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Community Water System · PWS PR0666066

Acued.comunal Sect. Manuel Diaz

San Lorenzo, Puerto Rico 00754 - drinking water served from groundwater sources to 331 people, tracked in EPA SDWIS and UCMR5.

331
People served
350
EPA violations
127
Health-based
Untested
UCMR5 result

The verdict

EPA records 350 drinking-water violations at Acued.comunal Sect. Manuel Diaz, 36% of them health-based - below the Puerto Rico per-system average.

350
Total EPA violations on record
36%
Health-based (MCL / treatment failure)
331
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Acued.comunal Sect. Manuel Diaz

Acued.comunal Sect. Manuel Diaz is a private-owned community water system that delivers drinking water to 331 residents in San Lorenzo, Puerto Rico (San Lorenzo Municipio County) through 124 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 350 total violations for this system , of which 127 (36%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 190 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 Coliform (TCR), recorded in 184 violations (MR). 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%).

Acued.comunal Sect. Manuel Diaz's 350 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
331
Total Violations
350
Health-Based Violations
127
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
124
County
San Lorenzo Municipio
School/Daycare
No
MCL Violations
125
Monitoring Violations
190
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 184 2013
Coliform (TCR) MCL 125 2015
Revised Total Coliform Rule MON 5 2021
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2024
Lead and Copper Rule MR 1 2023

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 Acued.comunal Sect. Manuel Diaz.

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 PR0666066 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 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / PR0666066 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / PR0666066 / 5200
2023 Lead and Copper Rule MR 1 SDWIS / PR0666066 / 5000
2021 Revised Total Coliform Rule MON 5 SDWIS / PR0666066 / 8000
2015 Coliform (TCR) MCL 125 SDWIS / PR0666066 / 3100
2013 Coliform (TCR) MR 184 SDWIS / PR0666066 / 3100

How Acued.comunal Sect. Manuel Diaz Compares

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

Metric Acued.comunal Sect. Manuel Diaz Puerto Rico avg Federal benchmark
Total violations 350 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 127 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 331 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 Acued.comunal Sect. Manuel Diaz water safe to drink? ▼
Acued.comunal Sect. Manuel Diaz (PWS ID: PR0666066) has 350 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 331 people using Groundwater sources.
How many people does Acued.comunal Sect. Manuel Diaz serve? ▼
Acued.comunal Sect. Manuel Diaz serves 331 people in San Lorenzo, Puerto Rico. It is a Private-owned system using Groundwater water sources with 124 service connections.
What type of violations does Acued.comunal Sect. Manuel Diaz have? ▼
Acued.comunal Sect. Manuel Diaz has 350 total violations: 127 health-based violations (MCL exceedances or treatment failures), 190 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Acued.comunal Sect. Manuel Diaz water? ▼
No PFAS testing data is available for Acued.comunal Sect. Manuel Diaz under the EPA's UCMR5 monitoring program.
What water source does Acued.comunal Sect. Manuel Diaz use? ▼
Acued.comunal Sect. Manuel Diaz uses Groundwater 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.