ZipCheckup's reading of PFAS in Silver Spring, Maryland: the highest detected level is 3 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.

PFAS is regulated under the Safe Drinking Water Act because of its potential health effects at elevated concentrations; for residents of Silver Spring, Maryland, the relevant fact is that it has shown up in recent EPA compliance samples - point-of-use filtration is one option residents research, alongside reviewing the utility's published treatment data.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

PFAS in Silver Spring Tap Water

PFAS has been detected in Silver Spring, Maryland drinking water at a maximum level of 3 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 307,872 residents across 16 ZIP codes in Silver Spring.

Silver Spring's overall water quality grade is C (56/100).

Is PFAS in Silver Spring Water Safe?

PFAS was detected in Silver Spring 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

Average pfas level across Silver Spring: 5.14 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 Silver Spring 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
• PFAS in Maryland
• Maryland Water Quality
• Silver Spring Water Quality
• Check Your ZIP Code