Home hazard report for 00636 — Rosario, PR
ZIP 00636 is served by Periche: 4 violations since 2016, latest lead result No data, PFAS not tested. San Germán Municipio is in EPA radon no zone.
Health-based violations since 2016: Revised Total Coliform Rule, Lead and Copper Rule Revisions. 2 are still listed as unresolved in EPA records.
No lead sampling results on file for this system.
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).
EPA has not assigned this area a radon zone. Testing is the only way to know.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 6.2 miles away.
Active weather alerts
live from the National Weather ServiceChecking the National Weather Service…
Where ZIP 00636 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Periche
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Revised Total Coliform Rule | 3 |
| Lead and Copper Rule Revisions | 1 |
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. 2 still listed as unresolved (“unaddressed” or “addressed” but not yet returned to compliance); the latest began Aug 2025.
Lead
No lead sampling results on file.
PFAS (“forever chemicals”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in San Germán 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
| Site | Status | Distance |
|---|---|---|
| San German Ground Water Contamination San German, Puerto Rico · EPA ID PRN000205957 | Active (final NPL) | 6.2 mi |
| Cabo Rojo Ground Water Contamination Cabo Rojo, Puerto Rico · EPA ID PRN000206319 | Active (final NPL) | 6.7 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 00636
Who supplies drinking water to ZIP 00636?
Periche (EPA ID PR0364013), a surface water (rivers, lakes) system serving about 1,100 people.
Is there lead in Rosario, PR tap water?
No lead sampling results are on file for this system.
Does Rosario, PR water have PFAS?
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).
Has the water system in 00636 had violations?
Health-based violations since 2016: Revised Total Coliform Rule, Lead and Copper Rule Revisions. 2 are still listed as unresolved in EPA records.
What natural hazards affect ZIP 00636?
FEMA’s National Risk Index rates the overall natural-hazard risk here as not rated.
Are there Superfund sites near 00636?
The nearest active Superfund site is 6.2 miles away. Sites within 10 miles: San German Ground Water Contamination (6.2 mi, Active (final NPL)); Cabo Rojo Ground Water Contamination (6.7 mi, Active (final NPL)).
Is radon a problem in San Germán Municipio?
San Germán 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.