CheckPFAS

City overview · Williamson County

PFAS in Leander, TX

High Risk

EPA UCMR 5 tested 6 public water systems serving the Leander area across 2 ZIP codes. At least one utility serving Leander has PFAS above the EPA's enforceable limit.

Water systems tested
6
Systems above EPA limits
1
ZIP codes covered
2
County
Williamson County, Texas

Plain English

01What this means for Leander

Across the 6 public water systems tested in the Leander 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 Leander

  1. CITY OF GEORGETOWN

    8 detected · 2 above limit · PWSID TX2460001

    High Risk
  2. BLOCK HOUSE MUD

    2 detected · 0 above limit · PWSID TX2460110

    Low Level
  3. CITY OF LAGO VISTA

    2 detected · 0 above limit · PWSID TX2270092

    Low Level
  4. SANDY CREEK RANCHES SUBDIVISION

    1 detected · 0 above limit · PWSID TX2270054

    Low Level
  5. CITY OF LEANDER

    1 detected · 0 above limit · PWSID TX2460012

    Low Level
  6. JONESTOWN WSC

    1 detected · 0 above limit · PWSID TX2270011

    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
6 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 Leander 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.