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Water system · PWSID PR0003772

LAGO GUAJATACA

ISABELA, PR · ~11,187 people served

Check your exact address → ISABELA overview
100
Excellent
PurityRadar safety score

PWSID

PR0003772

State

Puerto Rico

City

ISABELA

Population served

11,187

Primary source

Surface water

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

96

Violations on record

0

Unaddressed

34

Health-based

85

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2024. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began Sep 2024 Resolved
Monitoring & reporting · EPA contaminant 0200 began Sep 2022 Resolved
Treatment technique · EPA contaminant 0300 health-based began Mar 2022 Resolved
Other · EPA contaminant 7000 began Jul 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2019 Resolved
Monitoring & reporting · EPA contaminant 3015 began Apr 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2019 Resolved

Recent enforcement actions

  • State action · SFJ Nov 2024
  • State action · SOX Oct 2024
  • State action · SFJ Dec 2022
  • State action · SOX Oct 2022
  • State action · SFJ May 2022
  • State action · SOX Apr 2022
  • State action · SOX Jul 2020
  • State action · SOX Jun 2020

This profile is built from EPA public records for system PR0003772 — 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.