PWSID
PR0003283
State
Puerto Rico
City
MAYAGUEZ
Population served
151,555
Primary source
Surface water
Score history
No change since tracking began Jun 18, 2026.
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
665
Violations on record
0
Unaddressed
48
Health-based
119
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jun 2023. Official EPA record →
Recent enforcement actions
- State action · SOX Jun 2023
- State action · SOX Jun 2023
- State action · SOX Jun 2023
- State action · SFJ Mar 2023
- State action · SFJ Mar 2023
- State action · SFJ Mar 2023
- State action · SFJ Dec 2022
- State action · SOX Oct 2022
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.
Nitrate
1 station · latest Aug 2023
Arsenic
1 station · latest Aug 2023
Copper
1 station · latest Aug 2023
Lead
1 station · latest Aug 2023
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 PR0003283 — 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.