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TCE Vapor Intrusion: State of the Science, Regulations, & Technical Options Workshop

April 13, 2015 @ 9:00 am - 4:00 pm

9:00      Registration & continental breakfast

9:30      Welcome & Introductions
              Jennifer Griffith, NEWMOA & Eric Suuberg, Brown University

9:45      TCE Basics
              Professor Kim Boekelheide, Brown University
                 –  Why do we care so much about this chemical?
Widespread use
* Current & historic uses
* Industries/site uses where TCE contamination should be suspected
Breakdown products
–  How the view of TCE impact has changed over time
Reference concentration changes
Fetal cardiac acute short term exposure impacts

10:30     TCE Fate & Transport
                Professor Eric Suuberg, Brown University
                   –  DNAPL behavior in the subsurface
–  Vapor intrusion basics
–   Effect of preferential pathways for DNAPL & VI movement
–   VI movement into buildings
–  Evaluating soil gas, sub-slab & indoor air data

11:15     Break

11:30     Practical Aspects of VI Assessment for TCE
               David Shea, Sanborn, Head & Associates
                   –  VI investigation methods & sampling tools
–  Distinguishing background from VI
–  Addressing spatial & temporal variations
–  Confounding factors: VI pathways, HVAC systems, & in-structure mixing

12:15     Lunch (provided)

1:00      Approaches to Managing TCE Risks
              Gary Ginsberg, CT DPH
              Paul Locke, MassDEP
                    –  Why standards vary:
OSHA vs. cleanup
State vs. state
Chronic vs. acute
–  Overview of TCE standards & guidance in the NEWMOA states
–  Making decisions under regulatory uncertainty

1:45      VI Mitigation Methods Overview
              Robin Mongeon, NH DES
                      –  Site remediation
–  Institutional controls
–  Building controls

2:15      Break

2:30      State Case Studies:  Addressing TCE Vapor Intrusion
CT:  Carl Gruszczak, CT DEEP & Phil Warner, HGC Environmental Consulting
ME: Troy Smith, ME DEP
MA: Gerard Martin, MassDEP
NH: Robin Mongeon, NH DES
RI:   Ashley Blauvelt, RI DEM
VT:  Richard Spiese, VT DEC

4:00      Adjourn


April 13, 2015
9:00 am - 4:00 pm
Event Category:


Brown University – Barus and Holley Building
182 Hope Street
Providence, RI United States
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