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Water system · PWSID PR0004815

MAUNABO URBANO

MAUNABO, PR · ~9,310 people served

Check your exact address → MAUNABO overview

Excellent

PurityRadar safety score

PWSID

PR0004815

State

Puerto Rico

City

MAUNABO

Population served

9,310

Primary source

Surface water

Score history

▼ 13 points — the score moved from 100 to 87 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 87

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 Aug 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

4.8 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFBS

3.2 ppt

limit —

No federal limit

Violations & enforcement

248

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2020 Resolved

Other · EPA contaminant 7500 began Oct 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

Other · EPA contaminant 7000 began Oct 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2018 Resolved

Monitoring & reporting · EPA contaminant 2380 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 2955 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 2980 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 2976 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 2964 began Apr 2018 Resolved

Recent enforcement actions

State action · SFJ May 2023
State action · SOX Aug 2020
State action · SOX Jun 2020
State action · SOX Jan 2020
State action · SOX Jan 2020
State action · SFJ Dec 2019
State action · SFJ Oct 2019
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

0.354 · max 0.961 mg/l as N · 28

Arsenic

1 station · latest Aug 2023

0.5 · max 0.6 ug/l · 8

Copper

1 station · latest Aug 2023

2.9 · max 10.1 ug/l · 8

Lead

1 station · latest Aug 2023

0.2 · max 0.54 ug/l · 4

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 PR0004815 — 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.