Exceeds EPA Limit PFAS EXCEEDS EPA LIMIT

PFAS in Yucaipa, CA Drinking Water

PFAS data for Yucaipa, California · 60,098 residents · 1 ZIP code

Across the water systems that serve Yucaipa, California, PFAS has appeared in EPA compliance samples — standard municipal treatment targets this contaminant, though detections in the compliance record indicate it has reached household taps at measurable levels.

0.01 ppt
Max Level Detected
16 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 Yucaipa Tap Water

PFAS has been detected in Yucaipa, California drinking water at a maximum level of 0.01 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 60,098 residents across 1 ZIP code in Yucaipa.

Yucaipa's overall water quality grade is C (65/100).

Is PFAS in Yucaipa Water Safe?

PFAS levels in parts of Yucaipa exceed the EPA MCL of 4 ppt (PFOA/PFOS individually). The EPA requires water systems to take corrective action when this limit is exceeded.

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
92399 16 detections 4 ppt (PFOA/PFOS individually) Exceeds limit

Average pfas level across Yucaipa: 16 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 Yucaipa 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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