Kent County, Grattan Township, Ashley Avenue Disposal Area

Updated: November 13, 2019

Background

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) received a credible complaint in November 2018 from a resident who stated hundreds of thousands of gallons of industrial waste, including plating wastes, were discharged directly on the ground surface at three separate areas on a property located near the intersection of Ashley Avenue NE and 7 Mile Road NE in Grattan Township. EGLE tested residential wells first for PFAS; then tested groundwater on the site.  Residential well results were all non-detect.  All results are shown on the table.

Recent Accomplishments

  • None within the last month.

Next Steps

  • EGLE is also seeking funding to perform additional investigation of groundwater on the site. Timing for the expanded investigation is dependent upon available funding and resources.

Residential Well Testing/Alternate Water Information

  • 5 residential wells have been tested by EGLE; these results were all non-detect.

Upcoming Community Engagement

  • None scheduled at this time.
Sampling: PFOS and PFOA Only

Type of Sample

Date Sampled

# of Samples

# of Results Received

# of Non-detects

# Between Non-detect and standard*

# > Standard

Groundwater

Jan 2018 - Apr 2019 10 10 4 5 1
Residential Wells Jan 2018 5 5 5 0 0

Cumulative

  15 15 9 6 1

*Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA.
*Residential well results are compared to the USEPA Lifetime Health Advisory level of 70 ppt PFOS+PFOA.

Sampling notes

  • Other PFAS analytes were detected in samples. There are no federal or state standards for these analytes.

Ashley Avenue Disposal Area Historical Timeline

This site is physically located in Grattan Township but has a Belding mailing address. The Michigan Department of Environment, Great Lakes, and Energy (EGLE) received a credible complaint in November 2018 from a resident who stated hundreds of thousands of gallons of industrial waste, including plating wastes, were discharged directly on the ground surface at three separate areas on the site. EGLE has tested drinking water and groundwater for PFAS and has tested soil and groundwater for metals and volatile organic compounds.

  • On December 17, 2018, and January 14 – 16, 2019, EGLE collected soil samples from soil borings installed at three areas on site to test for metals and volatile organic compounds.
  • On January 14 – 15, 2019, EGLE collected samples from five residential wells to test for PFAS. These residents were in the suspected downgradient direction, which, at the time, was believed to be south of the site.
  • On January 22, 2019, EGLE installed and collected groundwater samples from permanent monitoring wells in the three disposal areas identified on-site for PFAS, metals, and volatile organic compounds.
  • On January 24, 2019, EGLE reviewed groundwater elevation data and determined that groundwater flow direction was to the north of the site.
  • On February 6, 2019, EGLE received the results from the January 14 – 15 residential well sampling. All results were Non-Detect for all tested PFAS. MDHHS provided the results to each of the residents.
  • On February 11, 2019, EGLE received the results from the January 14 – 16, 2019 soil sampling event. Soil sample results indicate the presence of metals above generic cleanup criteria.
  • Also on February 11,  2019, EGLE received the results from the January 22, 2019 groundwater sampling event. The highest result was 55 ppt PFOS+PFOA and 58 Total Tested PFAS. 
  • On April 9, 2019, EGLE collected a confirmation round of groundwater samples from the on-site wells. The confirmation samples were collected after the initial round of samples to allow the aquifer to stabilize after it was interrupted by the installation of the monitoring wells.
  • On May 1, 2019, EGLE received the results from the April 9, 2019, groundwater sampling event. One sample was above the EGLE Part 201 groundwater cleanup criteria of 70 ppt PFOS+PFOA. The highest result was 103 ppt PFOS+PFOA and 110 ppt Total Tested PFAS.
  • EGLE provided the results of the April 2019 groundwater sampling event to the Michigan Department of Health and Human Services (MDHHS) and the Kent County Health Department.