Detected PFAS

PFAS in Rathdrum, ID Drinking Water

PFAS data for Rathdrum, Idaho · 21,202 residents · 1 ZIP code

Within Rathdrum, Idaho, PFAS has been detected in water samples drawn from the public supply — the results are part of the official EPA compliance record for systems here.

0.008 ppt
Max Level Detected
4 ppt
Average Level
4 ppt (PFOA/PFOS individually)
EPA MCL
High
Health Risk
Reverse Osmosis or Granular Activated Carbon
Best Filter Method

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

PFAS in Rathdrum Tap Water

PFAS has been detected in Rathdrum, Idaho drinking water at a maximum level of 0.008 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 21,202 residents across 1 ZIP code in Rathdrum.

Rathdrum's overall water quality grade is C (66/100).

Is PFAS in Rathdrum Water Safe?

PFAS was detected in Rathdrum 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

ZIP Code PFAS Level EPA Limit Status
83858 4 detections 4 ppt (PFOA/PFOS individually) OK

Average pfas level across Rathdrum: 4 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 Rathdrum 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.

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