CheckPFAS

City overview · Montgomery County

PFAS in Dayton, OH

High Risk

EPA UCMR 5 tested 11 public water systems serving the Dayton area across 24 ZIP codes. At least one utility serving Dayton has PFAS above the EPA's enforceable limit.

Water systems tested
11
Systems above EPA limits
8
ZIP codes covered
24
County
Montgomery County, Ohio

Plain English

01What this means for Dayton

Across the 11 public water systems tested in the Dayton area under EPA UCMR 5, one or more measured a PFAS compound above the federal Maximum Contaminant Level. Contamination varies by utility and neighborhood — find your exact ZIP code below to see the system that serves you. If you're in an affected area, an NSF/ANSI 53 or 58 certified filter (carbon block or reverse osmosis) is the most reliable way to reduce PFAS at the tap.

By utility

02Water systems serving Dayton

  1. WRIGHT-PATTERSON AFB AREA B PWS

    5 detected · 3 above limit · PWSID OH2903312

    High Risk

  2. WRIGHT-PATTERSON AFB AREA A PWS

    7 detected · 2 above limit · PWSID OH2903412

    High Risk

  3. GRANDVIEW MEDICAL CENTER PWS

    5 detected · 2 above limit · PWSID OH5750615

    High Risk

  4. MONTGOMERY COUNTY WATER SERVICES 1 PWS

    5 detected · 2 above limit · PWSID OH5701315

    High Risk

  5. DAYTON VA BLDG 410

    4 detected · 2 above limit · PWSID OH5750618

    High Risk

  6. DAYTON PUBLIC WATER SYSTEM

    5 detected · 1 above limit · PWSID OH5703512

    High Risk

  7. MONTGOMERY COUNTY WATER SERVICES 2 PWS

    5 detected · 1 above limit · PWSID OH5701503

    High Risk

  8. BELLBROOK WATER WORKS

    3 detected · 1 above limit · PWSID OH2901112

    High Risk

  9. OAKWOOD CITY PWS

    4 detected · 0 above limit · PWSID OH5701915

    Low Level

  10. JEFFERSON REGIONAL WATER AUTHORITY

    3 detected · 0 above limit · PWSID OH5703012

    Low Level

  11. TROTWOOD CITY PWS

    1 detected · 0 above limit · PWSID OH5702403

    Low Level

By ZIP code

03Find your exact result

Contamination can differ block to block. Select your ZIP code for the precise reading at the utility that serves your address.

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Source & Methodology

About this data

Source
EPA UCMR 5
Sampling period
January 2023 – December 2025
Aggregation
11 utilities across 24 ZIP codes
Detection threshold (MRL)
~1.5–2 ppt

City-level figures aggregate the individual public water systems tested under EPA UCMR 5 whose service area falls within the Dayton area. Values reflect water quality at the treatment plant; your home's plumbing can affect what reaches your tap. Select your ZIP above for the utility-specific reading.