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Water system · PWSID PR0666036

SECTOR LOS DIAZ

SAN LORENZO, PR · ~197 people served

Check your exact address → SAN LORENZO overview
100
Excellent
PurityRadar safety score

PWSID

PR0666036

State

Puerto Rico

City

SAN LORENZO

Population served

197

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

36

Violations on record

3

Unaddressed

21

Health-based

50

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2025. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jul 2023 Unaddressed
Monitoring · Lead & Copper Rule began Jul 2022 Resolved
Monitoring · Lead & Copper Rule began Jan 2020 Resolved
Monitoring · Lead & Copper Rule began Jul 2019 Resolved
Monitoring · Lead & Copper Rule began Apr 2019 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2015 Resolved
Monitoring & reporting · Total coliform began Sep 2014 Resolved
Monitoring & reporting · Total coliform began Apr 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2014 Resolved

Recent enforcement actions

  • State action · SFJ Mar 2025
  • State action · SIE Mar 2025
  • State action · SOX Mar 2024
  • State action · SOX Dec 2020
  • State action · SOX May 2016
  • State action · SOX Jun 2012
  • State action · SFJ Aug 2011
  • State action · SOX Sep 2009

This profile is built from EPA public records for system PR0666036 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.