Home hazard report for 11531 — Garden City, NY
ZIP 11531 is served by Garden City (V): no health-based violations since 2016, latest lead result 10.2 ppb, PFAS 4.3 ppt. Nassau is in EPA radon zone 3.
No health-based violations reported since 2016.
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 2026.
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 3 PFAS compounds detected.
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code.
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Where ZIP 11531 is
blue: utility service area · scroll or pinch to zoomDrinking water: Garden City (V)
Health-based violations
No health-based violations reported since 2016.
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”)
| Compound | Highest result | Samples with detection | EPA limit |
|---|---|---|---|
| PFNA | 7.1 ppt | 2 of 12 | — |
| PFBA | 5.6 ppt | 1 of 12 | — |
| PFOS | 4.3 ppt | 2 of 12 | 4 ppt MCL |
| PFHxA | not detected | 0 of 12 | — |
| PFPeA | not detected | 0 of 12 | — |
| HFPO-DA (GenX) | not detected | 0 of 12 | — |
| PFDA | not detected | 0 of 12 | — |
| PFOA | not detected | 0 of 12 | 4 ppt MCL |
| PFHxS | not detected | 0 of 12 | — |
| PFHpA | not detected | 0 of 12 | — |
| PFBS | not detected | 0 of 12 | — |
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 Nassau
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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| Old Roosevelt Field Contaminated Ground Water Area Garden City, New York · EPA ID NYSFN0204234 | Active (final NPL) | <1 mi |
| Pasley Solvents & Chemicals, Inc. Hempstead, New York · EPA ID NYD991292004 | Cleaned up & deleted | 1.2 mi |
| Jackson Steel Mineola, North Hempstead, New York · EPA ID NYD001344456 | Cleaned up & deleted | 1.3 mi |
| Fulton Avenue North Hempstead, New York · EPA ID NY0000110247 | Active (final NPL) | 1.4 mi |
| Genzale Plating Co. Franklin Square, New York · EPA ID NYD002050110 | Active (final NPL) | 2.4 mi |
| New Cassel/Hicksville Ground Water Contamination New Cassel/Hicksville, New York · EPA ID NY0001095363 | Active (final NPL) | 4.3 mi |
| Anchor Chemicals Hicksville, New York · EPA ID NYD001485226 | Cleaned up & deleted | 5.4 mi |
| Stanton Cleaners Area Ground Water Contamination Great Neck, New York · EPA ID NYD047650197 | Active (final NPL) | 6.5 mi |
| Port Washington Landfill Port Washington, New York · EPA ID NYD980654206 | Active (final NPL) | 6.5 mi |
| Applied Environmental Services Glenwood Landing, New York · EPA ID NYD980535652 | 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 11531
Who supplies drinking water to ZIP 11531?
Garden City (V) (EPA ID NY2902824), a groundwater (wells) system serving about 23,272 people.
Is there lead in Garden City, NY tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 10.2 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 Garden City, NY water have PFAS?
Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 3 PFAS compounds detected.
Has the water system in 11531 had violations?
No health-based violations reported since 2016.
Are there Superfund sites near 11531?
Active or proposed Superfund (National Priorities List) sites near the center of this ZIP code. Sites within 10 miles: Old Roosevelt Field Contaminated Ground Water Area (1.0 mi, Active (final NPL)); Pasley Solvents & Chemicals, Inc. (1.2 mi, Cleaned up & deleted); Jackson Steel (1.3 mi, Cleaned up & deleted).
Is radon a problem in Nassau?
Nassau 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.