Crawford County, Grayling, Camp Grayling - MATES at Range 30

Updated: March 16, 2020

MATES Supplemental SI Locations MapBackground

This Michigan Army National Guard's Maneuver and Training Equipment Site (MATES) is part of the 147,000-acre Camp Grayling property.  PFAS was detected in two on-site monitoring wells in the southwest corner of the property.  

Recent Accomplishments

  • On February 20, 2020, a Camp Grayling Restoration Advisory Board (RAB) meeting was held. Progress updates were given by DMVA, EGLE and DHHS. Recent and future RAB outreach was discussed and the final RAB brochure was released.

Next Steps

  • EGLE will continue to communicate information on site. There does not appear to be a risk above Part 201 Criteria to drinking water wells in the area.
  • DHHS plans to resample homes in June 2020 that were part of the initial testing near the MATES. DHHS will be contacting residents.  

Residential Well Testing/Alternate Water Information

  • 23 residential drinking water wells have been tested by the ARNG. Residential well sampling was conducted by focusing on the residences in closest proximity to the MATES facility and stepping out if any wells or areas of concern were identified.  
  • All 23 of the residences with tested wells received results in the form of a letter from the National Guard Bureau. 
  • All 23 of the residences with tested wells have received a letter from the Michigan Department of Health and Human Services (MDHHS) encouraging residents with questions or concerns regarding results to contact District Health Department #10. 

Military Update

  • None at this time.

Upcoming Community Engagement

  • The March 27th Camp Grayling RAB Meeting has been canceled.
Sampling: PFOS and PFOA Only

Type of Sample

Date Sampled

# of Samples

# of Results Received

# of Non-detects

# Between Non-detect and standard*

# > Standard

Monitoring Wells

Aug 2, 2018 - Feb 28, 2019 12 12 10 1 1
Residential Drinking Wells Aug 2, 2018 - Feb 28, 2019 23 23 19 4 0

Cumulative

  35 33 29 5 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.
  • Groundwater sampling has been completed on the MATES facility.
  • Residential well sampling has been completed for the closest receptors to the MATES facility.

​Additional Information

Final Preliminary Assessment Report - Camp Grayling, Michigan
Perfluorooctane-Sulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Impacted Sites 

August 2018
Part  1 of 2
Part  2 of 2

Camp Grayling - MATES at Range 30 Historical Timeline

The Camp Grayling – Maneuver Area Training Equipment Site (MATES) at Range 30 is located approximately 2.5 miles northeast of downtown Grayling and is part of the 147,000-acre Camp Grayling property. The official address is 2450 W. North Down River Road.  According to the Army National Guard (ARNG), the Preliminary Assessment Report and associated interviews did not identify any releases of Aqueous Film Forming Foam (AFFF) at the MATES facility, therefore no timeframes or quantities can be determined.

The site has 12 previously existing monitoring wells that were sampled for PFAS in August 2018 by the ARNG. A total of 23 private residential drinking water wells (closest receptors near the MATES facility) were sampled between November 8, 2018 and February 28, 2019.  To date, results from all 23 residential well samples have been received. To date, residential well results indicate no exceedances of the USEPA Lifetime Health Advisory (LHA) level of 70 ppt PFOS+PFOA.  Groundwater flow is generally south to southeast towards the Au Sable River, located one mile south of the MATES facility.

  • In August 2018, the ARNG in cooperation with the Michigan Department of Military and Veterans Affairs (DMVA) tested existing monitoring wells for PFAS.
  • On October 7, 2018, EGLE received the sampling results for 12 existing monitoring well samples at the MATES facility.  The highest result was 150.5 ppt PFOS+PFOA, 371.4 ppt Total Tested PFAS.
  • On December 11, 2018, EGLE hosted a Town Hall meeting for the Grayling area PFAS sites. Attendees included the ARNG, DMVA, MDHHS, and District Health Department #10.
  • On February 28, 2019, sampling of 23 residential wells within the target area of the MATES facility was completed.  Results from all 23 residential well samples have been received and are below the USEPA LHA level of 70 ppt PFOS+PFOA. 
  • On June 5, 2019, there was a Restoration Advisory Board community meeting for the Grayling Area to learn about the RAB process, how a RAB functions, and the change to fill out a Community Member Interest Form. Applications were due by June 10 and the first RAB meeting will be announced in the coming week.
  • On June 25, 2019, the Army National Guard hosted an open public meeting from 7:30-8:30 pm at Kirtland Community College, 4800 W 4 Mile Rd, Grayling, to discuss plans to provide alternative drinking water to property owners with wells over 70 ppt of PFOA and PFOS.
  • On July 31, 2019, the first meeting of the Camp Grayling Restoration Advisory Board was held from 10:00am - 12:00pm at Kirtland Community College – Grayling Campus, 4800 W 4 Mile Road, Grayling MI 49738. It included the organization of the new Restoration Advisory Board and other set-up functions. This meeting was open to the public.
  • On August 1, 2019, a Town Hall PFAS Informational Meeting was held at Kirtland Community College, 4800 W 4 Mile Rd, Grayling. An open house was from 4:30-6:00 pm, followed by a presentation of recent investigations from 6:00-7:30.
  • On August 30, 2019, a Restoration Advisory Board (RAB) Meeting was held. The meeting focused primarily on developing RAB meeting operating procedures and other administrative topics.
  • On November 6, 2019, a Restoration Advisory Board (RAB) Meeting was held. The meeting focused primarily on finalizing RAB meeting operating procedures and RAB communication with the public. Progress updates were given by the DMVA and EGLE. A presentation on the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) process was given by DMVA.
  • On December 11, 2019, a Restoration Advisory Board (RAB) Meeting was held. Progress updates were given by the DMVA and EGLE. A presentation on the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) process was given by DMVA. Eric Keller, Regional Director for Senator Gary Peters, gave an update on PFAS at the federal level.
  • On January 13, 2020, a Camp Grayling Restoration Advisory Board (RAB) meeting was held. Progress updates were given by DMVA, EGLE and DHHS. Sesha Kallakuri (MDHHS) gave a presentation on risk assessment and DHHS Drinking Water Screening Levels. The RAB members continued to develop their outreach and communications plans.