Home hazard report for 00970 — Guaynabo, PR
ZIP 00970 is served by Guayabota: 15 violations since 2016, latest lead result 4 ppb, PFAS not tested. Guaynabo is in EPA radon no zone.
Health-based violations since 2016: Long Term 2 Enhanced Surface Water Treatment Rule. All are listed as resolved.
90th-percentile lead in the latest round (Jun 2006). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
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.
The nearest active Superfund site is 8.7 miles away.
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Where ZIP 00970 is
blue: utility service area · scroll or pinch to zoomDrinking water: Guayabota
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Long Term 2 Enhanced Surface Water Treatment Rule | 15 |
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 Aug 2018.
Lead
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”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in Guaynabo
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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Naval Security Group Activity Sabana Seca, Puerto Rico · EPA ID PR4170027383 | Cleaned up & deleted | 7.4 mi |
| Scorpio Recycling, Inc. Candeleria Ward, Puerto Rico · EPA ID PRD987376662 | Active (final NPL) | 8.7 mi |
| Hormigas Ground Water Plume Caguas, Puerto Rico · EPA ID PRN000206359 | Cleaned up & deleted | 9.5 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 00970
Who supplies drinking water to ZIP 00970?
Guayabota (EPA ID PR0005186), a surface water (rivers, lakes) system serving about 1,036 people.
Is there lead in Guaynabo, PR tap water?
The utility’s latest 90th-percentile lead result (Jun 2006) was 4 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 Guaynabo, 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 00970 had violations?
Health-based violations since 2016: Long Term 2 Enhanced Surface Water Treatment Rule. All are listed as resolved.
Are there Superfund sites near 00970?
The nearest active Superfund site is 8.7 miles away. Sites within 10 miles: Naval Security Group Activity (7.4 mi, Cleaned up & deleted); Scorpio Recycling, Inc. (8.7 mi, Active (final NPL)); Hormigas Ground Water Plume (9.5 mi, Cleaned up & deleted).
Is radon a problem in Guaynabo?
Guaynabo is in EPA radon no zone (not mapped). EPA has not assigned this area a radon zone. Testing is the only way to know.