PFAS in Riverhead, NY Drinking Water
PFAS data for Riverhead, New York · 35,115 residents · 1 ZIP code
If you rely on a public water system in Riverhead, New York, PFAS is a contaminant your utility has been required to test for — and EPA records show it has been detected at measurable levels, making it worth understanding as part of your tap water's detection record.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
PFAS in Riverhead Tap Water
PFAS has been detected in Riverhead, New York drinking water at a maximum level of 0.0435 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 35,115 residents across 1 ZIP code in Riverhead.
Riverhead's overall water quality grade is B (75/100).
Is PFAS in Riverhead Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or granular activated carbon filter certified under NSF 53 / NSF 58 and testing your water independently.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 11901 | 175 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
Average pfas level across Riverhead: 175 ppt
EPA Violations for PFAS in Riverhead
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2024-07-01 | PFOA (Known) | Known | 11901 |
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 Riverhead 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.