Home hazard report for 10986 — Tomkins Cove, NY
ZIP 10986 is served by Bear Mountain Water Supply: 2 violations since 2016, latest lead result 10.8 ppb, PFAS not tested. Rockland County is in EPA radon zone 3.
Health-based violations since 2016: Total Haloacetic Acids (Haa5), Interim Enhanced Surface Water Treatment Rule. All are listed as resolved.
Below the current 15 ppb action level but above 10 ppb, the action level under EPA's Lead and Copper Rule Improvements (compliance from 2027). Latest round: Jan 2025.
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).
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 6.7 miles away.
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Where ZIP 10986 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Bear Mountain Water Supply
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Total Haloacetic Acids (Haa5) | 1 |
| Interim Enhanced Surface Water Treatment Rule | 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. All are listed as resolved or archived; the latest began Sep 2023.
Full record for Bear Mountain Water Supply →
Other systems overlapping this ZIP: Veolia Water New York.
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 Rockland County
EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
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 Relatively Low, with very low social vulnerability and relatively moderate 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 |
|---|---|---|
| Magna Metals Cortlandt Manor, New York · EPA ID NYD001394881 | Active (final NPL) | 6.7 mi |
| Marathon Battery Corp. Cold Springs, New York · EPA ID NYD010959757 | Cleaned up & deleted | 9.3 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 10986
Who supplies drinking water to ZIP 10986?
Bear Mountain Water Supply (EPA ID NY4317681), a surface water (rivers, lakes) system serving about 3,564 people.
Is there lead in Tomkins Cove, NY tap water?
The utility’s latest 90th-percentile lead result (Jan 2025) was 10.8 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 Tomkins Cove, NY 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 10986 had violations?
Health-based violations since 2016: Total Haloacetic Acids (Haa5), Interim Enhanced Surface Water Treatment Rule. All are listed as resolved.
What natural hazards affect ZIP 10986?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are coastal flooding (relatively moderate), cold wave (relatively moderate), lightning (relatively moderate).
Are there Superfund sites near 10986?
The nearest active Superfund site is 6.7 miles away. Sites within 10 miles: Magna Metals (6.7 mi, Active (final NPL)); Marathon Battery Corp. (9.3 mi, Cleaned up & deleted).
Is radon a problem in Rockland County?
Rockland County is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.