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Water system · PWSID PR0004835

PATILLAS URBANO

PATILLAS, PR · ~31,955 people served

Check your exact address → PATILLAS overview
90
Excellent
PurityRadar safety score

PWSID

PR0004835

State

Puerto Rico

City

PATILLAS

Population served

31,955

Primary source

Surface water

Score history

▼ 10 points — the score moved from 100 to 90 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 90

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

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Jan 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

4.3 ppt

limit 4 ppt

Above EPA limit · 1.1×

6:2 FTS

29 ppt

limit —

No federal limit

PFDA

5.5 ppt

limit —

No federal limit

PFBS

4.3 ppt

limit —

No federal limit

Violations & enforcement

295

Violations on record

0

Unaddressed

22

Health-based

82

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Other · EPA contaminant 7000 began Jul 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved
Other · EPA contaminant 7500 began Oct 2019 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) · Lead & Copper Rule health-based began Sep 2019 Resolved
Monitoring & reporting · EPA contaminant 0100 began Aug 2019 Resolved
Monitoring & reporting · EPA contaminant 3014 began Aug 2019 Resolved
Monitoring & reporting · EPA contaminant 3015 began Aug 2019 Resolved
Monitoring & reporting · EPA contaminant 2931 began Jul 2019 Resolved
Monitoring & reporting · EPA contaminant 2946 began Jul 2019 Resolved

Recent enforcement actions

  • State action · SFJ May 2023
  • State action · SOX Feb 2021
  • State action · SOX Sep 2020
  • State action · SOX Sep 2020
  • State action · SOX Sep 2020
  • State action · SOX Jul 2020
  • State action · SOX Mar 2020
  • State action · SOX Mar 2020

This profile is built from EPA public records for system PR0004835 — 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.