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Fish Contaminant Monitoring Program

Walleye lined up on ice and snow
Environment, Great Lakes, and Energy

Fish Contaminant Monitoring Program

EGLE's report entitled "A Strategic Environmental Quality Monitoring Program for Michigan's Surface Waters" (Strategy) describes the monitoring activities that are necessary for a comprehensive assessment of water quality in Michigan's surface waters. One component of the Strategy is expanded and improved fish contaminant monitoring.

Check out our Fish Contaminant Monitoring Program FAQ

Aquatic biologist Mike McCauley collects fish from the Carp River near Negaunee

Program Objectives

  1. Determine whether fish from the waters of the state are safe for human consumption by collecting edible portion (e.g. fillets) contaminant data to be used by the Michigan Department of Health and Human Service's (MDHHS) Eat Safe Fish program.
  2. Measure whole fish contamination concentrations in the waters of the state for trend analysis and to assist the EGLE's Wildlife Contaminant Monitoring Program.
  3. Assess whether contaminant levels in fish are changing with time.
  4. Assist in the identification of waters that may exceed standards and target additional monitoring activities.
  5. Evaluate the overall effectiveness of EGLE programs in reducing contaminant levels in fish.
  6. Identify waters of the state that are high quality.
  7. Determine if new chemicals are bioaccumulating in fish from Michigan waters.
Person holding a filet knife cleaning a filet
6 to 8 inch channel catfish are commonly used by EGLE in caged fish studies to assess contaminant spatial and temporal trends.
Row of fish laying on metal table
Person working on a metal trap

Program Process

Fish contaminant monitoring locations are determined each year based on several factors including available budget, contaminant data collected by other programs (e.g. surface water PFAS monitoring), requests received from the Targeted Monitoring Request program, surveys from our partner agencies (e.g. Michigan Department of Natural Resources [MDNR]), and the Water Resources Division's 5-year rotating watershed monitoring strategy.

Fish in net hovering above water
Cover for guide showing bobber and hook for fishing

Also, the SWAS Manager serves as chair of Michigan's Fish and Wildlife Contaminant Advisory Committee (FAWCAC). FAWCAC is responsible for coordinating efforts to monitor contaminants in fish and wildlife and issue consumption advisories in Michigan.

EGLE logo
MDARD Logo
Department of Natural Resources Logo
Michigan Department of Health and Human Services

Contact us

Dr. Brandon Armstrong, ArmstrongB5@Michigan.gov, 517-256-1853

Related Links and Reports

General FCMP

Edible Portion Monitoring

Great Lakes Restoration Initiative Study Final Reports

Whole Fish Trend Monitoring

Caged Fish Studies (available upon request)

  • 1993 Saginaw River and Major Tributaries
  • 1997 Belle and Pine Rivers
  • 1997 St. Joseph River
  • 1997 Clinton River
  • 2002 Saginaw River Watershed
  • 2005 Lower Saginaw River
  • 2008 Manistique River
  • 2011 South Branch Shiawassee River
  • 2017 Pine, Tittabawassee, and Saginaw Rivers

Passive Sampler Studies

Others (available upon request)

  • 1999 Mercury concentrations in fish collected from Deer Lake, Nawakwa Lake, Greenwood Reservoir, and Carp Creek, Michigan
  • 2007 PCB Concentrations in walleye collected from Torch Lake (Houghton County) and Lake Superior
  • 1984 – 2011 Temporal trends in Deer Lake fish tissue mercury concentrations
  • 2012 Status of Fish Contaminant Levels in the St. Marys River Area of Concern
  • 2012 Status of Fish Contaminant Levels in the St. Clair River Area of Concern
  • 2013 Status of Fish Contaminant Levels in the River Raisin Area of Concern
  • 2013 Status of Fish Contaminant Levels in the Torch Lake Area of Concern
  • 2013 Status of Fish Contaminant Levels in the Lower Menominee River Area of Concern
  • 2013 PCB Concentrations in Fish from the St. Clair Shores Area of Lake St. Clair
  • 2013 Status of Fish Contaminant Levels in the Rouge River Area of Concern
  • 2014 Reconnaissance sampling of perfluorinated compounds in Michigan surface water and fish
  • 2014 Status of Fish Contaminant Levels in the St. Marys River Area of Concern
  • 2015 Status of Fish Contaminant Levels in the Clinton River Area of Concern
  • 2018 Status of Fish Contaminant Levels in the Torch Lake Area of Concern