CheckPFAS

City overview · Waukesha County

PFAS in Brookfield, WI

Moderate

EPA UCMR 5 tested 2 public water systems serving the Brookfield area across 2 ZIP codes. PFAS were detected in Brookfield's water, but below EPA limits.

Water systems tested
2
Systems above EPA limits
0
ZIP codes covered
2
County
Waukesha County, Wisconsin

Plain English

01What this means for Brookfield

Testing under EPA UCMR 5 found PFAS in the Brookfield area at concentrations below the federal Maximum Contaminant Level. "Below the limit" is not the same as "none" — levels vary by utility. Check your specific ZIP code below for the system serving your home. A certified point-of-use filter is a low-cost way to reduce exposure further if you'd like.

By utility

02Water systems serving Brookfield

  1. BROOKFIELD WATER UTILITY

    5 detected · 0 above limit · PWSID WI2680253

    Moderate
  2. TOWN OF BROOKFIELD SAN DIST 4

    1 detected · 0 above limit · PWSID WI2680239

    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
2 utilities across 2 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 Brookfield 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.