EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 00680 — Mayaguez, PR

ZIP 00680 is served by Mayaguez: 13 violations since 2016, latest lead result 6 ppb, PFAS not detected. Mayagüez Municipio is in EPA radon no zone.

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Where ZIP 00680 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: Mayaguez

EPA IDPR0003283
People served152,342
Sourcesurface water (rivers, lakes)
Connections57,057

Health-based violations

Contaminant or ruleHealth-based violations since 2016
Tthm6
Total Haloacetic Acids (Haa5)3
Interim Enhanced Surface Water Treatment Rule3
Long Term 2 Enhanced Surface Water Treatment Rule1

A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Sep 2022.

Full record for Mayaguez →

Lead

Jul 20156 ppb
Jul 20126 ppb
Jul 20097 ppb
Jun 20063 ppb
Jul 20031.8 ppb
Jul 20021.3 ppb
Jul 20013.3 ppb
Jul 20003 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

CompoundHighest resultSamples with detectionEPA limit
PFHxSnot detected0 of 26—
PFBSnot detected0 of 26—
PFPeAnot detected0 of 26—
PFBAnot detected0 of 26—
HFPO-DA (GenX)not detected0 of 26—
PFDAnot detected0 of 26—
PFHpAnot detected0 of 26—
PFOAnot detected0 of 264 ppt MCL
PFNAnot detected0 of 26—
PFHxAnot detected0 of 26—
PFOSnot detected0 of 264 ppt MCL

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Mayagüez Municipio

EPA radon no zone — not mapped. EPA has not assigned this area a radon zone. Testing is the only way to know.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Natural hazard risk

FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as not rated, with data unavailable social vulnerability and data unavailable community resilience.

FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.

Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.

Superfund sites nearby

SiteStatusDistance
Cabo Rojo Ground Water Contamination
Cabo Rojo, Puerto Rico · EPA ID PRN000206319
Active (final NPL)6.5 mi
San German Ground Water Contamination
San German, Puerto Rico · EPA ID PRN000205957
Active (final NPL)9.4 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 00680

Who supplies drinking water to ZIP 00680?

Mayaguez (EPA ID PR0003283), a surface water (rivers, lakes) system serving about 152,342 people.

Is there lead in Mayaguez, PR tap water?

The utility’s latest 90th-percentile lead result (Jul 2015) was 6 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Mayaguez, PR water have PFAS?

None of the tested PFAS were found above EPA’s reporting limits in 2023–2025.

Has the water system in 00680 had violations?

Health-based violations since 2016: Tthm, Total Haloacetic Acids (Haa5), Interim Enhanced Surface Water Treatment Rule. All are listed as resolved.

What natural hazards affect ZIP 00680?

FEMA’s National Risk Index rates the overall natural-hazard risk here as not rated.

Are there Superfund sites near 00680?

The nearest active Superfund site is 6.5 miles away. Sites within 10 miles: Cabo Rojo Ground Water Contamination (6.5 mi, Active (final NPL)); San German Ground Water Contamination (9.4 mi, Active (final NPL)).

Is radon a problem in Mayagüez Municipio?

Mayagüez Municipio is in EPA radon no zone (not mapped). EPA has not assigned this area a radon zone. Testing is the only way to know.