Not every city shows PFAS in its water data; in Bay Shore, New York, federal sampling has confirmed its presence at detectable levels in at least one recent reporting cycle.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05

PFAS in Bay Shore Tap Water

PFAS has been detected in Bay Shore, 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 68,648 residents across 1 ZIP code in Bay Shore.

Bay Shore's overall water quality grade is D (50/100).

Is PFAS in Bay Shore 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

Average pfas level across Bay Shore: 171 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 Bay Shore Water

1. Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
2. Granular activated carbon (GAC) filters remove some PFAS compounds
3. Look for NSF 53 or NSF 58 certification specifically tested for PFAS
4. Pitcher filters with activated carbon provide partial reduction

Look for filters certified under NSF 53 / NSF 58 for pfas removal.

Related

• PFAS — National Overview
• New York Water Quality
• Bay Shore Water Quality
• Check Your ZIP Code