Exceeds EPA Limit PFAS EXCEEDS EPA LIMIT

PFAS in Lathrop, CA Drinking Water

PFAS data for Lathrop, California · 33,015 residents · 1 ZIP code

ZipCheckup's reading of PFAS in Lathrop, California: PFAS carries a high health-risk designation.

Routine testing in Lathrop, California turned up PFAS - samples from the public supply came back positive, placing this contaminant on the list of substances residents here have a concrete reason to look into.

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

PFAS in Lathrop Tap Water

This analysis covers 33,015 residents across 1 ZIP code in Lathrop.

Is PFAS in Lathrop Water Safe?

PFAS levels in parts of Lathrop 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.

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 Lathrop 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

HomeContaminantsPFASCalifornia → Lathrop

How to cite this page

APA ZipCheckup. (2026). PFAS in Lathrop, CA Drinking Water. https://zipcheckup.com/contaminants/pfas/lathrop-ca/
BibTeX
@misc{zipcheckup-contaminants-pfas-lathrop-ca,
  author = {{ZipCheckup}},
  title  = {{PFAS in Lathrop, CA Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/lathrop-ca/}
}

Page version: August 2026.

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