PWSID
PR0004545
State
Puerto Rico
City
AIBONITO
Population served
16,202
Primary source
Surface water
Score history
▼ 19 points — the score moved from 100 to 81 on Jun 18, 2026, as newly published EPA data was incorporated.
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 Sep 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
47 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
4.8 ppt
limit 10 ppt
PFHxA
5.4 ppt
limit —
PFPeA
5.4 ppt
limit —
PFBA
5.1 ppt
limit —
PFBS
3.2 ppt
limit —
Violations & enforcement
348
Violations on record
0
Unaddressed
40
Health-based
73
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →
Recent enforcement actions
- State action · SOX Dec 2024
- State action · SFJ Dec 2024
- State action · SFJ Oct 2024
- State action · SOX Jun 2024
- State action · SOX Feb 2021
- State action · SOX Aug 2020
- State action · SOX Jul 2020
- State action · SOX Jun 2020
This profile is built from EPA public records for system PR0004545 — 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.