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Water system · PWSID PR0002652

ARECIBO URBANO

ARECIBO, PR · ~61,119 people served

Check your exact address → ARECIBO overview

Excellent

PurityRadar safety score

PWSID

PR0002652

State

Puerto Rico

City

ARECIBO

Population served

61,119

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

4.4 ppt

limit 4 ppt

Above EPA limit · 1.1×

6:2 FTS

8.6 ppt

limit —

No federal limit

Violations & enforcement

374

Violations on record

Unaddressed

Health-based

108

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2022. Official EPA record →

Treatment technique · EPA contaminant 0300 health-based began Aug 2022 Resolved

Other · EPA contaminant 7000 began Jul 2020 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2979 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2980 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jan 2019 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 2019 Resolved

Recent enforcement actions

State action · SOX Sep 2022
State action · SFJ Sep 2022
State action · SOX Jul 2020
State action · SOX Jun 2020
State action · SOX Mar 2020
State action · SOX Mar 2020
State action · SOX Mar 2020
State action · SOX Oct 2019

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest May 2023

0.315 · max 0.604 mg/l as N · 26

Arsenic

1 station · latest Aug 2023

0.3 · max 0.4 ug/l · 7

Copper

1 station · latest Aug 2023

0.8 · max 3.3 ug/l · 7

Lead

1 station · latest Aug 2020

0.33 · max 0.33 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system PR0002652 — 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.