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

EGLE Site Lead: Kimberly Ethridge, EthridgeK@Michigan.gov or 586-324-0183. Content last updated October 3, 2022.

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.  

Map of Techni- Comp PFAS Sample Results

Recent Accomplishments

  • 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.

Next Steps

  • 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.

Residential Well/Alternate 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.

Upcoming Community Engagement

  • None scheduled at this time. 

Sampling Results Summary

Type of Sample

Date Sampled (or Range)

Number of 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.

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.