Use of organic fluorochemical compounds with oleophobic and ...
Michigan Taking Action on PFAS• Surfactants • Hydrophobic(repels water) and oleophobic (repels...
Transcript of Michigan Taking Action on PFAS• Surfactants • Hydrophobic(repels water) and oleophobic (repels...
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Michigan Taking Action on PFAS
Steve Sliver, Executive DirectorMichigan PFAS Action Response Team517-290-2943| [email protected]
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Per-and polyfluoroalkyl substances (PFAS)
• Strong carbon-fluorine bonds • Surfactants• Hydrophobic(repels water) and
oleophobic (repels oil, fat, grease)• Heat resistant• Began developing in 1940’s• 5,000+ compounds today
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Some Common PFAS Abbreviations
• Perfluorooctanoic acid (PFOA) • Perfluorooctane sulfonate (PFOS)• Perfluorononanoic acid (PFNA)• Perfluorohexane sulfonic acid (PFHxS)• Perfluorobutane sulfonic acid (PFBS)• GenX
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PFAS Uses
Chemicals and Pharmaceuticals ElectronicsAerospace Apparel Building and
Construction
Aqueous Film Forming Foam SemiconductorsOil & Gas Energy Healthcare and
Hospitals
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Why the Concern?
• Pervasive• Persistent• Bioaccumulative• Associated with adverse health
effects• Scarcity of information in
scientific literature• Incomplete regulatory structure5
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1 ppt = 1 drop in 20 Olympic pools
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Michigan PFAS Action Response Team (MPART)
• Executive Order 2019-03• Unique multi-agency approach• Leads coordination and
cooperation among all levels of government
• Directs implementation of state’s action strategy8
MPART Executive Director
Steve SliverLocal Health Department Advisory Council
Citizens Advisory Workgroup
Science Advisory WorkgroupGovernor’s OfficeEnvironmental Policy Advisor
Kara Cook
EGLE DMVAMDHHS LARADNR MDARD MDOT
Liesl Clark Robert Gordon
Dan Eichinger
Gary McDowell
Paul Ajegba Major General Paul Rogers
Orlene Hawks
= C o o r d i n a t i o n
Legislative / Policy
Communications
Budget
M P A R T M e m b e r s
MPART Coordinat ion St ructure
PFAS Technical Advisory Workgroup
PFAS Regional
Team Leads
Air Quality (EGLE)
Airports (MDOT)
Animal Health & Food Safety (MDARD)
Biosolids (EGLE)
Drinking Water (EGLE)
Fire Stations (LARA)
Groundwater (EGLE)
Lab Standards (EGLE)
Military Installations (DMVA)
Wastewater (EGLE)
Wildlife (DNR)
Human Health (DHHS)
Treatment Technology (EGLE)
Pollution Prevention (EGLE)
Surface Water (EGLE)
PFAS Site
Leads
MPART Representatives
Operations Manager
M a y 2 2 , 2 0 1 9
T o p i c a l W o r k g r o u p s
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MPART Response
• Protect public health• Standardize sampling and analytical• Study occurrence• Identify sources and source
pathways• Study environmental transport and
fate• Study ecological effects• Seek input and educate• Prevent future contamination• Develop standards
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MI Standards
Surface water quality ü 11/12 ppt PFOSü 420/12,000 ppt PFOA
Groundwater cleanupü 70 ppt PFOA/PFOSü GSI per surface water quality
standardsDrinking water ü 70 ppt PFOA/PFOS lifetime health
advisory recommendationqMCLs
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Sites Being Investigated
Sources of groundwater contamination over 70 ppt PFOS+PFOA
Multiple other investigations with no known source yet
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Mobility
• Highly mobile• Unconventional • Affected by organic
carbon, pH, clay content
• Current models lacking
• More studies needed
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Surface Water Investigations
• Ambient• Fish• Foam• Wastewater
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Integrating Technology
• Thermal imaging with drones
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Environmental Studies and Research
• Biosolids• Landfill leachate• Soil• Treatment technologies
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MI Public Water Supply Testing
• All community water supplies
• All NTNCWS schools and day cares
• May – December 2018
• Informs next phase of testing
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PFOA
70 ppt
78 ppt
35 ppt
21 ppt
14 ppt
9 ppt
38 ppt
ATSDR Environmental Media Evaluation Guide for adults only (2018)
• Adult drinking water intake• ATSDR MRL• Daily exposure• No Relative Source Contribution
NH Dept of Environmental Services proposed MCL• Water intake for a woman who is breast-
feeding• NH RfD• Daily exposure• 40% Relative Source Contribution
ATSDR Environmental Media Evaluation Guide for children (2018)
• Water intake for children less than 1 year old• ATSDR MRL• Daily exposure• No Relative Source Contribution
MDHHS screening level, MDH toxicokinetic model• Water intake varies by age• ATSDR MRL• Daily exposure• 50% Relative Source Contribution
New Jersey Dept Environmental Protection (2017)
• Adult drinking water intake• NJ RfD• Daily exposure• 20% Relative Source Contribution
NY Proposed MCL: 10 ppt (not all details are available yet)
Minnesota Dept. of Health, protective of breast-feeding infants, both from exposure they may receive prenatally and while breast-feeding (2018)
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Water intake varies by ageUSEPA RfDDaily exposure50% Relative Source Contribution
USEPA Lifetime Health Advisory, for PFOA individually or in combination with PFOS (2016)
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Water intake for a woman who is breast-feedingUSEPA RfDDaily exposure20% Relative Source Contribution
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BEGIN MCL
MPART MPART MPART
Final Rule Adopted
HBV’s Developed(Health Based Values)
Draft Rules Developed
SAWG Develops HBV’s
Rules Development with Stakeholder
InputPublic
Participation
ORR / ERRC
4/46/27 9/26
Overview of MCL Process
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Public Health Advisories
• Fish and deer consumption• 9 – 300 ppb PFOS
• Surface water foam
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Exposure and Health Assessments
• North Kent County• Parchment• Wurtsmith• Camp Grayling
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Fire Fighting Foam
• State Fire Marshal survey of fire departments
• MDOT survey of airports• Special equipment for required
training• PEAS Hotline after use• Collection and disposal program
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Michigan Department of Environment, Great Lakes, and EnergyMichigan.gov/EGLEMichigan.gov/PFASResponse