March 18, Webinar access to this workshop is sponsored by U.S. EPA

Transcription

1 Workshop: Vapor Intrusion (VI) Exposures The Challenges of, Need for, and Benefits of Long Term Stewardship The 24th Annual AEHS International West Coast Conference on Soils, Water, Energy and Air March 18, 2014 Marriott Mission Valley, San Diego, California USEPA Office of Solid Waste and Emergency Response USEPA Office of Research and Development Contract Support: RTI International Meeting Support: The AEHS Foundation Webinar access to this workshop is sponsored by U.S. EPA Hosts: Doug Grosse, NRMRL, ORD, U.S. EPA Brian Schumacher, NERL, ORD, U.S. EPA Office of Research and Development National Risk Management Research Laboratory March 15, 2014

2 1 Acknowledgements: Henry Schuver, U.S. EPA, ORCR Doug Grosse, U.S. EPA, ORD Brian Schumacher, U.S. EPA, ORD Robert Truesdale, RTI International Alana Lee, U.S. EPA Region 9; Marcia Bailey, Region 10 Lenny Siegel, Center for Public Environmental Oversight Chris Lutes, ARCADIS Paul Johnson, Arizona State University Todd McAlary, Dave Folkes, Jeff Kurtz, Geosyntec Consultants Kyle Hoylman, Tom Hatton, Tony McDonald, AARST Jim DiLorenzo, U.S. EPA Region1 Paul Locke, MassDEP Daniel Steck, Minnesota Radon Project Bill Angell, University of Minnesota John Zimmerman, U.S. EPA, ORD Ian Hers, Golder Associates Brenna Lockwood, AEHS Foundation Jennifer Richkus, RTI International

3 ORD Technical Support: Five Major Technical Support Centers: ETSC Cincinnati GWTSC Ada SCMTSC Atlanta STSC Cincinnati ERASC Cincinnati Regional Technical Assistance & Field Studies OSWER Guidance Document Development Technology Transfer 2

4 Indoor Air Vapor Intrusion Technology Transfer Activities Vapor Intrusion Seminars: San Francisco - December 3-4; 2002, Dallas - January 14-15, 2003; and Atlanta , Workshop: Vapor Intrusion Attenuation, AEHS 14th Annual West Coast Conference on Soils, Sediments and Water, March 15-18, 2004, San Diego. Modeling Vapor Attenuation Workshop: The Annual International Conference on Soils, Sediments and Water, University of Massachusetts at Amherst, October 18-19, Workshop: Integrating Observed & Modeled Vapor Attenuation, AEHS 15th Annual West Coast Conference on Soils, Sediments and Water, March 14th, 2005, San Diego. Workshop: Development, Review and Use of US EPA s Updated J&E Model Spreadsheet, The 16th Annual West Coast Conference on Soils, Sediments and Water, March 21-22, 2006, San Diego. Specialty Workshop and Field Demonstration of Soil Gas Sampling Methodology, 2006 Midwestern States Risk Assessment Symposium, August 21-24, 2006, Indianapolis, IN. 3

5 Indoor Air Vapor Intrusion Technology Transfer Activities (cont.) Workshop: Soil-gas Sample Collection and Analysis, The 17th Annual West Coast Conference on Soils, Sediments and Water, March 16, 2007, San Diego. 4 Seminar: Technical Updates to USEPA & ITRC Vapor Intrusion Guidance and National Stakeholder Forum on Vapor Intrusion, March 13, 2008, San Diego. EPA National Stakeholder Forum on Vapor Intrusion, January 12-13, 2009, Philadelphia. Workshop: Update on Vapor Intrusion at U.S. EPA with Public Input, The 20th Annual AEHS International Conference on Soils, Sediments, Water, and Energy, March 16, 2010, San Diego. Workshop: Addressing Regulatory Challenges in Vapor Intrusion: A State-ofthe-Science Update Focusing on Chlorinated VOCs - The 21st Annual AEHS International Conference on Soils, Sediments, Water, and Energy, March 15, 2011, San Diego. Workshop: Recent Advances to VI Application & Implementation: A State-ofthe-Science Update - The 22nd Annual AEHS International Conference on Soils, Sediments, Water, and Energy, March 20, 2012, San Diego. Workshop: Looking Beyond Natural Variation in Vapor Intrusion: Understanding, Controlling, and Addressing Site Variables, The 23rd Annual AEHS International Conference on Soils, Sediments, Water, and Energy, March 19, 2013, San Diego.

6 Technology Transfer Products CDROM: U.S.EPA Seminars on Indoor Air Vapor Intrusion, EPA/625/C-03/004, 2004 EIP: Indoor Air Vapor Intrusion Mitigation Approaches, U.S.EPA NSCEP, EPA/600/R , 2008 EIP: Passive Indoor Air Samplers in VI Investigations, 2014 EIP: Defining Soil Excavation Limits at VI Sites, 2014 EIP: Soil Vapor Extraction (SVE),

7 6 Distribution of Attendees by Category All Workshops

8 Workshop Webinar Attendees

9 Topics Presented at Previous Workshops The EPA OSWER guidance document development and rollout (3 Seminar Series); Vapor intrusion attenuation - observed and modeled; Updates on and evolution of EPA s use of the J&E Model and spreadsheets; Soil gas sampling, collection, analysis and interpretation; Mitigation decisions and monitoring; Lessons from radon studies; Conceptual Model Scenarios; Understanding, Controlling, and Addressing Site Variables for Improved Practices; and Perspectives of community stakeholders, regulators, and practitioners 8

10 This Workshop 9 Overview of Long Term Stewardship (LTS) U.S. EPA and States Update Update on Continuous Monitoring of Natural Attenuation Update on the Indianapolis Field Study: Natural and Controlled Conditions Update on the Sun Devil Manor Field Study: Implications of Natural Temporal Variability Legal and Institutional Controls for Ongoing Protection and LTS: Case Studies Physical and Engineering Controls for Ongoing Protection and LTS: Case Studies Informational Devices for Improved Awareness and Enhanced Protection (LTS) Conceptual Discussions on the Costs and Benefits of LTS Controls Panel Discussion for Selecting LTS Controls (Balancing Criteria)

11 All presentations provided in these featured VI workshops can be found at: Webinar access to this workshop is sponsored by U.S. EPA 10