• Last Updated: December 6, 2021

    EGLE Site Lead:
    Christiaan Bon
    BonC@Michigan.gov
    989-370-9624

    Background

    The Alpena CRTC is an active Michigan Air National Guard training facility and is located seven miles west of the city of Alpena. As part of the United States Air Force (USAF) comprehensive approach to protect human health, several areas of the Alpena CRTC were tested for PFAS. The Michigan Department of Environment, Great Lakes, and Energy (EGLE) was made aware of this site when the Department of Military and Veterans Affairs notified EGLE on October 2, 2017, of groundwater samples collected on-base on May 16, 2017, that detected PFAS in groundwater at levels above the Lifetime Health Advisory level (LHA) of 70 ppt.

    Alpena CRTC PFOS Map Alpena CRTC PFOA Map

    Recent Accomplishments

    Next Steps

    • AECOM will continue to monitor new residential sampling requests and call residents to set up sampling dates and times as directed by EGLE.
    • AECOM will create report of water and sediment sampling completed in September 2021.

     

  • Military Update

    • The site is currently in the Remedial Investigation phase. The ANG and EGLE have met to discuss the Remedial Investigation work plan. Field work is schedule to start late fall/early winter 2021

    Residential Well Testing/Alternate Water Information

    • DHHS has completed three rounds of drinking water well resampling in the study area.
    • Households with detections of PFAS have been provided point of use filters and replacement cartridges by District Health Department #4.
    • All residential well testing reflected on this report has been conducted by EGLE.
    • For additional information on residential well testing and results, visit the Frequently Asked Questions.
    • EGLE has sampled all municipal water supplies for PFAS. View the results for the city of Alpena.

    Upcoming Community Engagement

    • The Air National Guard, EGLE, and DHHS are in the planning stages for an Alpena virtual town hall to provide investigation updates. This page will be updated with meeting information once the town hall is scheduled.
    Sampling chart reflects data compared to Part 201 Criteria effective 8/3/2020
    Sampling: PFOS and PFOA Only

    Type of Sample

    Date Sampled
    (or range)

    Number of Sample
    Results Received

    Number of Samples above Criteria

    Drinking Water
    (Residential)

    Through
    December 6, 2021
    127 1

    * Residential well results are compared to EGLE Part 201 Criteria for 7 PFAS compounds: PFOS (16 ppt), PFOA (8 ppt), PFNA (6 ppt), PFHxS (51 ppt), PFHxA (400,000 ppt), PFBS (420 ppt), and HFPO-DA (370 ppt).

    Sampling notes

    • On August 3, 2020, new Part 201 Criteria went into effect.  Historical sampling data compared to Part 201 Criteria >70 is captured in the historical timeline below.
    • Other PFAS analytes were detected in samples. There are no federal or state standards for these analytes.
    • All sample counts and activities reflect "off-base" sampling efforts only.
  • Historical Timeline

    The CRTC is an active Michigan Air National Guard training facility and is located seven miles west of the city of Alpena. It was built in 1940 and is a year-round training facility; one of four CRTCs in the United States. The Alpena CRTC environmental staff regularly monitor a number of environmental factors at the facility to ensure safety, compliance with state and federal regulations, and to proactively detect and remedy potential problems. As part of the USAF's comprehensive approach to protect human health, several areas of the Alpena CRTC were tested for PFAS. EGLE was made aware of this site when the Department of Military and Veterans Affairs (DMVA) notified EGLE on October 2, 2017, of groundwater samples collected on-base on May 16, 2017, that detected PFAS at levels above the LHA of 70 ppt.

    • Two public meetings have been held at the Alpena CRTC.
      • October 18, 2017: approximately 200-250 attendees.
      • January 18, 2018: approximately 150 attendees.
    • On November 7, 2017, EGLE began sampling residential wells.
    • Additional private water well sampling will continue as sampling requests within the designated sampling area are received.
    • Filters have been provided to approximately 31 homes.
    • On February 14, 2019, AECOM collected two residential drinking water samples.
    • On March 11, 2019, EGLE received the results from the February residential drinking water sample event.
    • On June 13, 2019, AECOM collected one residential well sample.
    • On July 8, 2019, AECOM collected one residential well sample.
    • On September 9, 2019, AECOM collected one residential well sample.
    • On September 17, 2019, AECOM collected one residential well sample.
    • On October 28, 2019, AECOM collected one (1) residential well sample.
    • On March 16, 2020, DHHS finished sending out results letters for the first round of drinking water well resampling conducted in December 2019.
    • On April 10, 2020, the Department of Health and Human Services (DHHS) sent a press release detailing January 2020 resampling efforts of residential wells surrounding Alpena CRTC. Results were consistent with EGLE's initial sampling efforts. Results letters were sent to residences that participated in the resampling. To view the press release, please click on the following link:
    • On November 10, 2020, DHHS finished sending out results letters for the second round of drinking water well resampling conducted in June 2020.
    • On January 21, 2021, EGLE and representatives of Alpena CRTC participated in a scoping session for Phase I of the remedial investigation. Air National Guard Anticipates Phase I of the investigation to begin by late Autumn of 2021.
    • In January 2021, DHHS conducted the third round of drinking water well resampling in the study area. DHHS is currently working on result letters to well owners.
    • On August 30, 2021, EGLE met onsite with ANG to discuss EGLE's upcoming water and sediment sampling around Alpena CRTC.
    • On September 3, 2021, EGLE contractors sampled water and sediment in areas adjoining Alpena CRTC.
  • Historical Sampling Chart: data is reflective of criteria prior to 8/3/2020:
    PFOS + PFOA Only

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

    Type of Sample

    Date Sampled

    # of Samples

    # of Results Received

    # of Non-detects

    # Between Non-detect and standard*

    > Standard

    Drinking Water (Residential, Type I & II)

    Through
    May 12, 2020
    124 124 93 31 0

    Cumulative

      124 124 93 31 0

    *Groundwater results are compared to EGLE Part 201 Criteria of 70 ppt PFOS+PFOA.

Contact Information