CheckPFAS

City overview · Durham County

PFAS in Durham, NC

High Risk

EPA UCMR 5 tested 3 public water systems serving the Durham area across 8 ZIP codes. At least one utility serving Durham has PFAS above the EPA's enforceable limit.

Water systems tested
3
Systems above EPA limits
2
ZIP codes covered
8
County
Durham County, North Carolina

Plain English

01What this means for Durham

Across the 3 public water systems tested in the Durham 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 Durham

  1. DURHAM, CITY OF

    4 detected · 2 above limit · PWSID NC0332010

    High Risk
  2. ORANGE WATER & SEWER AUTHORITY

    2 detected · 2 above limit · PWSID NC0368010

    High Risk
  3. CARY, TOWN OF

    4 detected · 0 above limit · PWSID NC0392020

    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.

Source & Methodology

About this data

Source
EPA UCMR 5
Sampling period
January 2023 – December 2025
Aggregation
3 utilities across 8 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 Durham 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.