PFAS in Poolesville, MD Drinking Water
PFAS data for Poolesville, Maryland · 6,605 residents · 1 ZIP code
SDWIS federal records include PFAS detections tied to water systems serving Poolesville, Maryland.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
PFAS in Poolesville Tap Water
PFAS has been detected in Poolesville, Maryland drinking water at a maximum level of 0.0151 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 6,605 residents across 1 ZIP code in Poolesville.
Poolesville's overall water quality grade is C (68/100).
Is PFAS in Poolesville 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 |
|---|---|---|---|
| 20837 | 50 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
Average pfas level across Poolesville: 50 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 Poolesville 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.