Please contact the Site Lead for the most up-to-date status of this site.
Emily Peabody, PeabodyE@Michigan.gov or 517-388-5719.
The property was developed in 1955 by Haigh Manufacturing Company as a metal stamping operation. From 1977-1982 the site was occupied by ITT-United Plastics, which molded and painted plastics. Thermofil purchased the facility from ITT in 1982 and operated a custom reinforced plastic compounding business. During process operations, a resin was blended on site with agents such as fiberglass, talc, mica and flame-retardants. This blended material was then transformed into pellets. The plastic creation process included the addition of flame-retardants. PFAS is used during the creation of plastics to keep the plastic from sticking to the mold. In 1997 a large fire occurred, and plastics stored at the facility burned. It is reported only water was used to control the fire. There are no reports of fire-fighting foam being used.
EGLE has conducted previous investigations at the facility and downgradient within a residential area associated with a trichloroethylene (TCE) groundwater contaminant plume extending approximately 2,000 feet in a southeast direction towards the Huron River watershed.
On January 31, 2023, the Attorney General on behalf of the State of Michigan and Asahi Kasei Plastics North America, Inc., former operator of Thermofil, reached a settlement agreement to conduct response activities related to PFAS releases from the site property. A copy of the Consent Decree can be found here: PFAS Asahi Consent Decree (michigan.gov).
Content posted September 2023.
See an aerial view of the location of the site.
This site is located within Starlight Mobile Home Park's wellhead protection area. The majority of the area surrounding the facility is on municipal water supplied by the city of Brighton. As a requirement of the settlement agreement, any private well identified in proximity to the contaminant plume will be scheduled to sample for PFAS analysis.
Asahi Kasei has hired GeoSyntec Consultants to perform remedial investigation and response actions scheduled to begin in Spring 2023. EGLE will continue to coordinate findings of any investigation work with the Michigan Department of Health and Human Services, Livingston County Health Department, Green Oak Township and the impacted community.
This chart reflects data received prior to August 3, 2020.
|
Type of Sample |
Date Sampled (or Range) |
Number of Samples |
Number of Results Received |
Number of Non-Detects | Number Between Non-detect and Standard* | Number Greater Than or Equal to Standard |
|---|---|---|---|---|---|---|
|
Groundwater |
April 2019 - Present | 37 | 37 | 13 | 19 | 5 |
| Cumulative | 37 | 37 | 13 | 19 | 5 |
*Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA.
