Former Wurtsmith Air Force Base, Iosco County

PFC Contamination

In 2012, the Michigan Department of Community Health (MDCH) issued a "do not eat" fish advisory for all fish caught from Clark's Marsh and for resident fish in the lower Au Sable River, south of the former Wurtsmith Air Force Base. Laboratory analysis of fish from the marsh and resident fish from the river showed levels of perfluorinated chemicals (PFCs) in the fish that are unsafe for people.  Migratory fish in the river are not expected to have high levels of PFCs but some have advisories due to other chemicals.  PFCs are chemicals that were used in fire-fighting foams on the former base.  MDCH continues to assess the health risk from the PFC contamination.

Advice on Eating Fish

Eat Safe Fish brochure

Chemicals in Fish flyer

Eat Safe Fish Guide

Advice about eating fish from Clark's Marsh, Allen Lake, and the lower Au Sable River

Press release announcing Clark's Marsh fish advisory

Public Meetings

Former Wurtsmith AFB Public Meeting MDHHS Presentation, April 29, 2015

Former Wurtsmith AFB Public Meeting Presentation, February 12, 2014 

Former Wurtsmith AFB Public Meeting Presentation by the Michigan Department of Community Health, January 24, 2013

Former Wurtsmith AFB Public Meeting Presentation by the Air Force Civil Engineering Center, January 24, 2013

Related Documents

Letter to MDEQ Regarding Need for Wild Game Data, September 24, 2015

Letter to MDEQ Regarding Need for Drinking Water Data, June 17, 2015​

Fish Data Update, April 2015

Amended Letter Health Consultation 

Letter Health Consultation

PFOS Frequently Asked Questions Fact Sheet

Emerging Contaminants, PFOS and PFOA

U.S. Air Force

U.S. Air Force fact sheet 

U.S. Civil Engineering Center

2001 Public Health Assessment

In 2001, the Agency for Toxic Substances and Disease Registry (ATSDR) wrote a Public Health Assessment of health risks posed by trichloroethylene (TCE) contamination in several on-base and off-base water supply wells.  Today, most drinking water in the area is provided by the Huron Shores Regional Utility Authority which meets all federal and state safe drinking water standards.

Former Wurtsmith Air Force Base Public Health Assessment, Part 1

Former Wurtsmith Air Force Base Public Health Assessment, Part 2



Appendix A

Appendix B

Appendix C

Appendix D

Appendix E