States/EPA Meeting on PFAS: Poly- & Perfluoroalkyl Substances

9:00     Check-in & Continental Breakfast

9:30     Welcome & Introductions

9:45     Introduction to PFAS – Uses, Chemistry, & Terminology
             Speaker: Dr. Jennifer Guelfo, Brown University

10:15   PFAS Subsurface Fate & Transport
             Speaker: Dr. Jennifer Guelfo, Brown University

10:45   Break

11:00   PFAS Toxicology
             Speaker: Dr. Angela Slitt, Associate Professor, University of Rhode Island 

11:30   State/EPA Standards, Their Basis, & Potential Changes
             States & EPA Roundtable

• Does your state have published limits for PFAS?
  • If so, what are they for drinking water? Groundwater? Surface water? Soil?
    • Which PFAS do you have standards for? PFOA/PFOS only? Others?
    • Are you considering regulating additional PFAS in the future. If so, which ones?
  • If not, what limits would you use and why?
•  If you have limits, what are they based on?
  • What is the toxicological endpoint?
    • What study was used and why?
  • If noncancer, what is the hazard index used in your state (e.g. 1 or 0.1)?
  • If cancer, what is the risk level used in your state (e.g. 10^-5 or 10^-6)?
  • What is the assumed duration of exposure?
  • Other factors?
• Is your state considering changes and if so, what’s likely?

12:15   Lunch (provided)

1:00     PFAS Sampling/Analysis
             Speaker: Robert Lim, EPA Region 1

1:30    Introduction to Treatment & Remediation Issues
             Speaker: Dr. Jennifer Guelfo, Brown University

1:45    Recent State Experience & Lessons Learned 

William Ottaway & George Heitzman, NYS Dept. of Env. Cons. (NYSDEC)
Chuck Schwer, VT Department of Environmental Conservation (VTDEC)
Micheal Wimsatt, NH Department of Environmental Services (NHDES) 

2:15     Break

2:30     Recent State Experience & Lessons Learned (continued)

Micheal Wimsatt, NHDES
William Ottaway & George Heitzman, NYSDEC
Chuck Schwer, VTDEC

3:30    Roundtable on State & EPA Treatment & Remediation Experience at Other PFAS Sites

• Experience with using or piloting treatment with anything other than granulated activated carbon (GAC)?

• Experience with treating drinking water wells at homes and/or municipal drinking water wells with GAC

• • What compounds are measured in the effluent?
  • What are the removal efficiencies?
  • Any issues with longevity of the GAC?
  • How is spent GAC disposed?
• Experience with remediation of soil &/or the groundwater plume

3:45     Key Questions to Inform Regulatory Guidance & Management & Concluding Remarks
             Speaker: Dr. Jennifer Guelfo, Brown University

4:00     Adjourn