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Techni-Comp (Port Huron, St. Clair County)

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

EGLE site lead

Kimberly Ethridge, EthridgeK@Michigan.gov or 586-324-0183.

Waste Disposal Questions

Techni-Comp: 810-364-5460

Background

Techni-Comp, located at 4152 Dove Road, has been utilized as a composting site for over 20 years. For an unknown number of years, the site accepted solid wastepaper sludge from E.B. Eddy Paper/Domtar Paper Company that contained PFAS.

Groundwater flow is unknown. Historical surface water sampling on and near the property exceeded water quality standards for PFOS and PFOA.

Content posted October 2022.

Site map

See an aerial view of the location of the site.

Expand the map

Drinking water

The St. Clair County Health Department identified six possible drinking water wells nearby. EGLE went door to door, left letters on doors, and called the owners. On March 15 and 16, 2022 DHHS collected drinking water samples from two of the six identified wells. The results were non-detect for PFAS for both residents. Based on the two drinking water results, EGLE and DHHS will not be pursuing any further drinking water sampling.

Anticipated activities

EGLE will continue to reach out to drinking water well owners to check if they want their water tested for PFAS. EGLE will continue to engage with Techni-Comp about their environmental obligations.

Historical timeline

    • In August 2021, EGLE conducted a subsurface investigation on the property which included collecting six groundwater samples.
    • On September 7, 2021, EGLE received the sampling results.  The highest result was 170,000 ppt for PFOA.
    • On March 15 and 16, 2022 DHHS collected drinking water samples from two of the six identified wells.  The results were non-detect for PFAS for both residents.

    Sampling Results Summary

    Type of Sample

    Date Sampled (or Range)

    Numberof Sample Results Received

    Number of Samples above Criteria*

    Groundwater Monitoring Wells

    August 23-24, 2021 6 6
    Surface Water November 21, 2019 6 6
    Residential Wells March 2022 2 0
    * 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).
    * Surface water samples are compared to Rule 57 non-drinking water values of 12 ppt for PFOS and 12,000 ppt for PFOA. 

    Sampling Notes

    • Some results were obtained from analysis of diluted samples and duplicates.