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Stanton Wastewater Treatment Plant (Stanton, Montcalm County)

Disclaimer: Web content may not be routinely updated on this page.

Please contact the Site Lead for the most up-to-date status of this site.

Disclaimer: Public and private municipal wastewater treatment plants do not produce or use PFAS.

These plants receive residential, commercial, and sometimes industrial wastewater that may contain PFAS. Conventional wastewater treatment plants are not designed to treat for PFAS, therefore PFAS may pass through the treatment system to surface waters (i.e., lakes, rivers, etc.) and groundwater. EGLE is actively working with these wastewater treatment plants to address PFAS. 

For more information, please see the Wastewater Workgroup page.

EGLE site lead

Kevin Wojciechowski, WojciechowskiK@Michigan.gov, 586-623-2948.

Background

The Stanton Wastewater Treatment Plant (WWTP), located on Brown Road, discharges treated wastewater to the groundwater under a state Groundwater Discharge Permit issued to the city of Stanton. Treatment consists of five treatment lagoons. The final effluent is discharged to the groundwater via two rapid infiltration basins.

As part of a statewide sampling effort in Fall 2021, EGLE sampled the influent, effluent, and three groundwater monitoring wells for PFAS at the WWTP.

Estimated groundwater flow across the rapid infiltration basins is to the west/southwest.

Content posted July 2022.

Site map

See an aerial view of the location of the site.

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Drinking water

EGLE, the Michigan Department of Health and Human Services (MDHHS), and the Mid-Michigan District Health Department are working to identify nearby residential wells and determine if sampling for PFAS is needed.

Anticipated activities

EGLE will continue to work with the city of Stanton to determine the extent of PFAS contamination in groundwater on-site as well as identify and reduce, or eliminate potential sources of PFAS to the WWTP. EGLE, MDHHS, and the Mid-Michigan District Health Department are working to identify nearby residential wells and determine if sampling for PFAS is needed.

Historical timeline

    • On October 25, 2021, as part of a statewide PFAS sampling effort, EGLE contractors sampled the influent, effluent, and three groundwater monitoring wells at the WWTP.
    • On December 7, 2021, EGLE received the October 2021 sample results. All three monitoring wells exceeded the groundwater cleanup criteria for PFOA. The highest result was 21.1 ppt for PFOA. One of the three monitoring wells also exceeded the criteria for PFOS and PFNA. The highest results were 33.5 ppt PFOS and 7.18 ppt PFNA.

    Sampling Results Summary

    Type of Sample

    Date Sampled
    (or range)

    Number of Sample
    Results Received

    Number of Samples
    above Criteria*

    Groundwater
    Monitoring Wells

    October 2021

    3

    3

    * Residential well and groundwater monitoring well results are compared to EGLE Part 201 criteria for 7 PFAS compounds effective 12/21/2020:  PFOS (16 ppt), PFOA (8 ppt), PFNA (6 ppt), PFHxS (51 ppt), PFHxA (400,000 ppt), PFBS (420 ppt), and HFPO-DA (370 ppt).

    Sampling Notes

    • None at this time.