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Lear Siegler Inc. (Mendon, St. Joseph 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.

EGLE site lead

Ray Spaulding, SpauldingR1@Michigan.gov, 517-290-2401.

Background

This automotive accessory manufacturer is located at 236 West Clark Street in Mendon. Plastic molding began at this facility in 1932 and operations were expanded to include plastic plating, trim and fabric preparation, and parts assembly, when Lear Siegler acquired the site in 1970. Industrial wastes were historically disposed on site. Lear operations were purchased by International Automotive Components (IAC) in 2007 and they have been conducting response activities for contaminants other than PFAS at the site. IAC submitted a No Further Action request to the Michigan Department of Environment, Great Lakes, and Energy (EGLE) in January 2018. IAC Mendon has not used PFAS during its operations. EGLE requested IAC sample for PFAS based on the history of the site that included a plating line until 1985. Testing by IAC confirmed PFAS in the on-site and off-site groundwater in 2019.

Groundwater flow in the area is southerly.

Content posted May 2021.

Site map

See an aerial view of the location of the site.

Expand the map

Drinking water

Most area residents utilize municipal water. According to local records, there are approximately 12 private residential wells still being used in Mendon. Three municipal water supply wells are about 1,000 feet southeast and southwest downgradient of the site. The Mendon municipal water supply was sampled in October 2018 and was Non-Detect for PFOS+PFOA and Non-Detect for Total Tested PFAS. EGLE has tested all municipal water supplies for PFAS. View the results for the village of Mendon.

Anticipated activities

IAC will discuss the results of this report and possible next steps, with EGLE in a meeting early in 2021, following review of the report and this meeting has yet to be scheduled.

Historical timeline

Historical sampling data

Data is reflective of criteria prior to 8/3/2020. PFOS and PFOA Only

This chart reflects data received prior to 8/3/2020.

Type of Sample

Date Sampled (or Range)

Numberof Samples

Number of Results Received

Number of Non-Detects Number Between Non-detect and Standard* Number Greater Than or Equal to Standard

Drinking Water (Residential Wells)

December 2019 - present 12 12 8 4 0
Groundwater October 2018 - present 12 12 0 3 9
Cumulative 24 24 8 7 9

*Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA. Residential well results are compared to the EPA LHA of 70 ppt PFOS+PFOA.