M ichigan Taking Action on PFAS UP Solid Waste Forum April 25, 2019 Phil Roycraft, District Supervisor M aterials M anagement Division 1
Per-and polyfluoroalkyl substances (PFAS) • Strong carbon-fluorine bonds • Surfactants • Hydrophobic (repels water) and oleophobic (repels oil, fat, grease) • Began developing in 1940’s • 5,000+ compounds today 2 2
• Perfluorooctanoic acid (PFOA) • Perfluorooctane sulfonate (PFOS) Some Common • Perfluorononanoic acid (PFNA) • PFAS Perfluorobutane sulfonic acid (PFBS) Abbreviations • Perfluorohexane sulfonic acid (PFHxS) • GenX • … 3 3
PFAS Uses Building and Chemicals and Apparel Aerospace Electronics Construction Pharmaceuticals Healthcare and Aqueous Film Energy Oil & Gas Semiconductors Hospitals Forming Foam 4 4
Why the Concern? • Pervasive • Persistent • Bioaccumulative • Associated with adverse health effects • Scarcity of information in scientific literature • Incomplete regulatory structure 5 5
Part Per Trillion 1 drop in 20 Olympic Swimming Pools 6 6
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PFAS Emerge in M ichigan • 2012 Wurtsmith “ Do Not Eat” fish advisory • 2013 surface water recon sampling • 2017 connecting channels data • 2017 Camp Grayling sample data • 2017 North Kent sample data 8 8
Fire Fighting Foam • State Fire M arshal survey of fire departments • M DOT survey of airports • Special equipment for required training • PEAS Hotline after use • Collection and disposal program 9 9
M ichigan PFAS Action Response Team (M PART) • Unique multi-agency approach • Leads coordination and cooperation among all levels of government • Directs implementation of state’s action strategy 1 1 0 0
M I Standards Drinking water 70 ppt PFOA/ PFOS lifetime health advisory o M CL Surface water quality 11/ 12 ppt PFOS 420/ 12,000 ppt PFOA Groundwater cleanup 70 ppt PFOA/ PFOS GSI per surface water quality standards 1 11 1
Sites Being Investigated • M ap represents sources of groundwater contamination over 70 ppt PFOS+PFOA • Once a source is identified, it becomes an official site • M ultiple other investigations with no known source yet 1 12 2
M obility • Highly mobile • Unconventional • Affected by organic carbon, pH, clay content • Current models lacking • M ore studies needed 1 13 3
M I Public Water Supply Testing • All community water supplies • All NTNCWS schools and day cares • M ay – December 2018 • Will inform additional testing of other supplies 1 14 4
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Fish Consumption Advisories • Over 600 fish filets have been analyzed at the M ichigan Department of Health and Human Services Analytical Chemistry Lab • PFOS fish consumption screening levels range from 9 ppb (ng/ g) to >300 ppb (“ Do Not Eat ” ) • 5 water bodies with “ Do Not Eat ” for PFOS (this includes the Huron River) – Approximately 60 fish consumption guidelines issued due to PFOS fish filet levels 1 16 6
Deer Consumption Advisory • 128 deer – 80 deer from four targeted areas – 48 samples from hunter- harvested deer (submitted for disease testing) • 1 deer with elevated PFOS in muscle – “ Do Not Eat” advisory issued within 5 mile radius of Clarks M arsh • Additional testing planned 1 17 7
Exposure and Health Assessments • North Kent County • Parchment • Wurtsmith • Camp Grayling 1 18 8
• Leachate management • Historical groundwater Landfill Initiatives releases • Waste industry initiative 1 1 9 9
Historic Landfill Release Sampling 2 2 0 0
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M ore Information: www.michigan.gov/ pfasresponse Steve Sliver slivers@michigan.gov 517-290-2943 2 2 2 2
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