PFAS in Mahopac, NY Drinking Water
PFAS data for Mahopac, New York · 26,137 residents · 1 ZIP code
Recent water testing in Mahopac, New York has returned PFAS readings above detection thresholds.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04
PFAS in Mahopac Tap Water
Mahopac, New York has 3 EPA violations related to pfas in drinking water.
This analysis covers 26,137 residents across 1 ZIP code in Mahopac.
Mahopac's overall water quality grade is C (58/100).
Is PFAS in Mahopac 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.
EPA Violations for PFAS in Mahopac
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2025-10-01 | PFOS (Known) | Known | 10541 |
| 2024-01-01 | PFOS (Resolved) | Resolved | 10541 |
| 2023-10-01 | PFOS (Resolved) | Resolved | 10541 |
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 Mahopac 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.