PFAS in Syosset, NY Drinking Water
PFAS data for Syosset, New York · 58,000 residents · 2 ZIP codes
At elevated levels, PFAS is a recognized health concern in drinking water; in Syosset, New York, it has been detected in recent samples logged through federal compliance reporting.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
PFAS in Syosset Tap Water
PFAS has been detected in Syosset, New York drinking water at a maximum level of 0.067 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 58,000 residents across 2 ZIP codes in Syosset.
Syosset's overall water quality grade is A (95/100).
Is PFAS in Syosset Water Safe?
PFAS was detected in Syosset water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or granular activated carbon filter can reduce pfas levels further.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 11791 | 28 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
Average pfas level across Syosset: 28 ppt
Health Effects of PFAS
- Increased risk of kidney and testicular cancer
- Thyroid disease and immune system suppression
- Reproductive problems and reduced fertility
- Elevated cholesterol and liver effects
- Developmental effects in infants and children
Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).
How PFAS Gets Into Drinking Water
- Firefighting foam (AFFF) used at military bases and airports
- Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
- Wastewater treatment plants that receive industrial discharge
- Landfill leachate from PFAS-containing consumer products
What to Do About PFAS in Syosset Water
- Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
- Granular activated carbon (GAC) filters remove some PFAS compounds
- Look for NSF 53 or NSF 58 certification specifically tested for PFAS
- Pitcher filters with activated carbon provide partial reduction
Look for filters certified under NSF 53 / NSF 58 for pfas removal.