Please contact the Site Lead for the most up-to-date status of this site.
Karen Vorce, VorceK@Michigan.gov or 616-439-8008.
Please note that this landfill is CLOSED and does not accept waste.
Northeast Gravel Company operated a licensed landfill on 20 acres located at 3769 Cannonsburg Road, formerly known as 4300 Cannonsburg Road, from 1966 through 1979. During that time, the Facility contained three unique disposal areas, including a Wolverine World Wide (WWW) tannery waste area, a domestic refuse area, and a plating waste area. The Grand River is directly south of this site and groundwater flows to the south-southwest.
In 1998, Northeast Gravel Company and the Michigan Department of Environment, Great Lakes, and Energy (EGLE), entered into a voluntary agreement for a Limited Residential Based Remedy to address environmental contamination identified at the Facility, under Michigan's environmental cleanup law, Part 201. However, in 1998, PFAS was not a known contaminant of concern and no sampling of PFAS had been completed. The area containing the former waste cells was subsequently developed into what is now the Boulder Creek Golf Course.
It was brought to EGLE's attention in 2017 that WWW used PFAS in their tanning operations. Since this property was a known location where WWW tannery waste was disposed of, along with plating wastes, EGLE began to collect PFAS samples from nearby drinking water wells and irrigation wells in the fall of 2017. EGLE requested Northeast Gravel Company (now Boulder Creek Development Company, LLC (BCDC) to conduct additional investigation and response actions; once EGLE was provided with the report summarizing these actions, it was determined this property should be reported as its own MPART site. BCDC also sampled drinking water wells surrounding the golf course greens north of 7 Mile Road at the request of EGLE based on BCDC's use of PFAS contaminated irrigation water north of 7 Mile Road.
Content posted February 2022.
4 drinking water wells have been tested by EGLE. To date, a total of 17 homes located in the residential well sampling effort surrounding the golf course greens north of 7 Mile Road have been sampled by BCDC. All of the sample results are below the new Part 201 cleanup criteria which became effective August 3, 2020. All sample results are reflected on the sampling chart. A total of 18 homes located directly adjacent to the golf course greens north of 7 Mile Road were presumptively offered point-of-use filters (instead of being sampled), based on previous independent sampling completed by homeowners, which identified the presence of PFAS in shallow well groundwater. These 18 homes were connected to municipal water in the summer and fall of 2021.
BCDC will continue implementing the response and investigation activities as outlined in August 29, 2019 Response Activity Plan for PFAS (Posted below in the Documents section). EGLE will continue to oversee the response actions taken by the responsible party under Part 201 and continue to meet with them to get updates on the work being performed. Additional response actions are needed by the responsible party to determine the full extent of PFAS contamination and address the PFAS contamination migrating off the property.
|
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 |
October 2017 - February 2019 | 14 | 14 | 2 | 4 | 8 |
| Surface Water | May 2018 - February 2019 | 10 | 10 | 1 | 1 | 8 |
| Residential Wells | October 2017 - February 2019 | 21 | 21 | 16 | 5 | 0 |
| Cumulative | 45 | 45 | 19 | 10 | 16 |
*Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA.
*Surface water and effluent results are compared to Rule 57 surface water quality values of 12 ppt for PFOS and 12,000 ppt for PFOA.
*Residential well results are compared to the USEPA LHA of 70 ppt PFOS+PFOA.
