CheckPFAS

City overview · Posey County

PFAS in Mount Vernon, IL

Low Level

EPA UCMR 5 tested 6 public water systems serving the Mount Vernon area across 2 ZIP codes. Only trace PFAS were detected across Mount Vernon's tested systems.

Water systems tested
6
Systems above EPA limits
0
ZIP codes covered
2
County
Posey County, Illinois

Plain English

01What this means for Mount Vernon

The water systems serving the Mount Vernon area measured only low, trace concentrations of PFAS — well below the EPA's Maximum Contaminant Levels. For most residents this represents minimal risk from drinking water. Review your specific ZIP below, and check your utility's annual Consumer Confidence Report for year-over-year trends.

By utility

02Water systems serving Mount Vernon

  1. MOUNT VERNON WATER WORKS

    4 detected · 0 above limit · PWSID IN5265006

    Low Level
  2. CORINTH PWD

    1 detected · 0 above limit · PWSID IL1995120

    Low Level
  3. GERMAN TOWNSHIP WATER DISTRICT INC.

    1 detected · 0 above limit · PWSID IN5282003

    Low Level
  4. NORTHEAST MOUNT VERNON WATER COMPANY

    1 detected · 0 above limit · PWSID IL0810010

    Low Level
  5. MOUNT VERNON

    1 detected · 0 above limit · PWSID IL0810300

    Low Level
  6. WOODLAWN

    1 detected · 0 above limit · PWSID IL0810450

    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 Mount Vernon 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.