SDWIS federal records include PFAS detections tied to water systems serving Loudon, Tennessee.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14

PFAS in Loudon Tap Water

PFAS has been detected in Loudon, Tennessee drinking water at a maximum level of 0.0075 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 29,917 residents across 1 ZIP code in Loudon.

Loudon's overall water quality grade is B (70/100).

Is PFAS in Loudon Water Safe?

PFAS was detected in Loudon 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 Loudon: 6 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 Loudon 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 Tennessee
• Tennessee Water Quality
• Loudon Water Quality
• Check Your ZIP Code