Detected PFAS

PFAS in Mason, OH Drinking Water

Q: Is pfas in Mason water safe?

PFAS was detected in Mason water at 0.0069 ppt, below the EPA limit of 4 ppt (PFOA/PFOS individually). Check ZIP-level data on this page for your specific area.

Q: How much pfas is in Mason water?

The maximum detected level of pfas in Mason water is 0.0069 ppt. The EPA limit is 4 ppt (PFOA/PFOS individually). See the ZIP code table above for area-specific levels.

PFAS data for Mason, Ohio · 58,132 residents · 1 ZIP code

ZipCheckup's reading of PFAS in Mason, Ohio: the highest detected level is 0.0069 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.

At elevated levels, PFAS is a recognized health concern in drinking water; in Mason, Ohio, it has been detected in recent samples logged through federal compliance reporting.

0.0069 ppt

Max Level Detected

10 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: 2026-07-13

PFAS in Mason Tap Water

PFAS has been detected in Mason, Ohio drinking water at a maximum level of 0.0069 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 58,132 residents across 1 ZIP code in Mason.

Mason's overall water quality grade is C (55/100).

Is PFAS in Mason Water Safe?

PFAS was detected in Mason 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
45040	10 detections	4 ppt (PFOA/PFOS individually)	Not comparable

Average pfas level across Mason: 10 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 Mason Water

Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
Granular activated carbon (GAC) filters remove some PFAS compounds
Look for NSF 53 or NSF 58 certification specifically tested for PFAS
Pitcher filters with activated carbon provide partial reduction

Look for filters certified under NSF 53 / NSF 58 for pfas removal.

Home → Contaminants → PFAS → Ohio → Mason

How to cite this page

APA ZipCheckup. (2026). PFAS in Mason, OH Drinking Water. https://zipcheckup.com/contaminants/pfas/mason-oh/

BibTeX

@misc{zipcheckup-contaminants-pfas-mason-oh,
  author = {{ZipCheckup}},
  title  = {{PFAS in Mason, OH Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/mason-oh/}
}

Data as of July 2026.