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Workshops And Conferences
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01 - EPA/AEHS, 23 March 2015 - Workshop Part I: Long-Term Evidence-Based Protection & Sustainability
  
00. AGENDA - Vapor Intrusion (VI) Exposures: Long-Term Evidence-Based Protection & Sustainability in Residential, Commercial, and Industrial Buildings: NOTE: These workshop presentations represent the speakers' perspectives and should not be construed to represent EPA determination or policy.  ... View Details
  
00a. Workshop Abstracts: in order of presentation 

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00b. Workshop Presenter Bios: View Details
  
01. Welcome, opening, and overview (slides only): Doug Grosse, DWG Consultants

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01a. Welcome, opening, and overview (webinar recording - slides and audio): Doug Grosse, DWG Consultants

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02. Long-Term Evidence-Based Protection & Sustainability Some Concepts for our 2015 VI Workshop (slides only): Henry Schuver, U.S. EPA ORCR

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02a. Long-Term Evidence-Based Protection & Sustainability Some Concepts for our 2015 VI Workshop (webinar recording - slides and audio): Henry Schuver, U.S. EPA ORCR

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03a. Introduction into Technical Updates (slides only): Robert Truesdale, RTI International

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03av. Introduction into Technical Updates (webinar recording - slides and audio): Robert Truesdale, RTI International

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03b. Passive Samplers for Investigations of Air Quality (slides only): Heidi Hayes, Eurofins Air Toxics

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03bv. Passive Samplers for Investigations of Air Quality (webinar recording - slides and audio): Heidi Hayes, Eurofins Air Toxics

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04. Vapor Intrusion Pathway Screening for Soil Excavation Remedies (slides only): Helen Dawson, Geosyntec Consultants

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04a. Vapor Intrusion Pathway Screening for Soil Excavation Remedies (webinar recording - slides and audio): Helen Dawson, Geosyntec Consultants

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05. Soil Vapor Extraction: Mitigation of Vapor Intrusion from Subsurface Sources over Large Areas (slides only): Lloyd "Bo" Stewart, Praxis Environmental

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05a. Soil Vapor Extraction: Mitigation of Vapor Intrusion from Subsurface Sources over Large Areas (webinar recording - slides and audio): Lloyd "Bo" Stewart, Praxis Environmental

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06. A Case for Profiling of Soil and Rock at VI Sites: Total Mass and Mass Flux as Metrics Supporting Protective Sustainable Decisions (slides only): Dan Carr and David Shea, Sanborn, Head & Associates; Helen Dawson, Geosyntec Consultants

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06a. A Case for Profiling of Soil and Rock at VI Sites: Total Mass and Mass Flux as Metrics Supporting Protective Sustainable Decisions (webinar recording - slides and audio): Dan Carr and David Shea, Sanborn, Head & Associates; Helen Dawson, Geosyntec Consultants

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07. Mass transfer concepts in predicting VI: Large Building Examples (slides only): David Shea, Brad Green, and Dan Carr, Sanborn, Head & Associates

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07a. Mass transfer concepts in predicting VI: Large Building Examples (webinar recording - slides and audio): David Shea, Brad Green, and Dan Carr, Sanborn, Head & Associates

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08. ORD VI-Research Duplex and Wheeler Building, Indianapolis- Summary of Evidence to Date: Temporal Variability in Long-term Mitigation Performance and Before Mitigation: What Causes It? (slides only): Chris Lutes, CH2MHill; Brian Schumacher, John Zimmerman, U.S. EPA ORD NERL; Robert Truesdale, RTI International

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08a. ORD VI-Research Duplex and Wheeler Building, Indianapolis- Summary of Evidence to Date: Temporal Variability in Long-term Mitigation Performance and Before Mitigation: What Causes It? (webinar recording - slides and audio): Chris Lutes, CH2MHill; Brian Schumacher, John Zimmerman, U.S. EPA ORD NERL; Robert Truesdale, RTI International

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09. Diagnosing Vapor Intrusion Occurrence, Impact, and Contributing Pathways (slides only): Paul Johnson, Arizona State University

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09a. Diagnosing Vapor Intrusion Occurrence, Impact, and Contributing Pathways (webinar recording - slides and audio): Paul Johnson, Arizona State University

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10. Part I (01-09) question and answer period (webinar recording): Part I speakers address audience questions (slide not pertinent to discussions) 

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11 - Poster Presentations: Posters presented Monday March 23rd

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11b. Summary of posters available for review and open discussion on breaks and in evening session. Poster mini-presentations by Hatton, Lutes, Lund, Truesdale, and Stewart (webinar recording - slides and audio): see agenda for poster titles

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12b. A Database of Vapor Intrusion Characteristics of Industrial Buildings: Are They Different than Single Family Residences?: Christopher Lutes, Keri Hallberg, Loren Lund and Mike Novak CH2MHILL; Patricia Venable and Tanwir Chaudhry, NAVFAC EXWC; Ignacio Rivera-Duarte, SSC-Pa  ... View Details
  
12c. A Life Cycle and Cost Analysis of Preemptive Mitigation, Site Characterization, and Vapor Source Reduction Strategies at Industrial VI Sites with Multiple Buildings: Loren Lund, Chris Lutes, and John Lowe, CH2MHill

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12d. A Real-Time VOC Sensor for Vapor Intrusion Investigations: Li Han and Robert Truesdale, RTI International; Chris Lutes, CH2MHill

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12e. - Estimating Mass Flux to Groundwater & Vapor Intrusion from SVE Data and High Resolution Measures of Permeability and Concentration: Dr. Lloyd 'Bo' Stewart, Praxis Environmental Technologies, Inc.

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12e. Remote Monitoring and Dynamic Controls of a Sub Slab Depressurization System: Thomas Hatton and Daniel Nuzzetti, Clean Vapor, LLC

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02 - EPA/AEHS, 23 March 2015 - Vapor Intrusion Panel Discussion
  
01. Vapor Intrusion Panel Discussion (webinar recording - slides and audio): Informal panel discussion including questions collected online and in-person

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03 - EPA/AEHS, 24 March 2015 - Workshop Part II: Long-Term Evidence-Based Protection & Sustainability
  
01. Welcome, opening, and overview (slides only): Doug Grosse, DWG Consultants; Dr. Henry Schuver, U.S. EPA ORCR

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02. Diagnostics Commercial & Residential (slides only): Tony McDonald, A-Z Systems

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03. Soil Vapor Extraction and Subslab Depressurization Work Together for Successful Mitigation of a Series of Commercial Buildings (slides only): Loren Lund, CH2MHill

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04. ESTCP Research on Optimization of Vapor Intrusion Mitigation Systems in Large Military Buildings (slides only): Todd McAlary, Geosyntec Consultants

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05. Vapor Intrusion Exposure: Long-Term Evidence-Based Protection & Sustainability: Long-Term Stewardship  Survey of LTS Programs (slides only): David Gillay, Barnes and Thornburg LLP

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06. Example Application of Long Term Stewardship for the Chlorinated Vapor Intrusion Pathway (and VOC sources) (slides only): Megan Hamilton, EnviroForensics

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07. Residential Building Lifecycle Cost Evaluation for natural and controlled conditions (slides only): Ian Hers, Golder Associates

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08. Nonresidential Building: Vapor Intrusion Lifecycle Cost Analysis (slides only): Chris Lutes, CH2MHill

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09. Communities and Vapor Intrusion Risk Management (slides only): Lenny Siegel, Center for Public Environmental Oversight

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10. Update on RMS-SF: Soil Gas Mitigation Standards for Existing Homes (slides only): Tony McDonald, A-Z Solutions

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04 - EnviroForensics & Barnes and Thornburg Webinar, 19 Nov 2014
  
01. What is the Evidence for Long Term Stewardship (LTS) (vs. Stopping All Monitoring (SAM)) for the Vapor Intrusion Pathway?: Dr. Henry Schuver, U.S. EPA, ORCR

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05 - A&WMA Specialty Conference, 10-11 Sept 2014, Cherry Hill, NJ
  
01. What is the Evidence for Stopping All Monitoring? of the Vapor Intrusion Pathway: Dr. Henry Schuver, U.S. EPA, ORCR

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06 - EPA/AEHS, 17 March 2014 - Vapor Intrusion Stakeholder Forum
  
Summary: March 2014 Vapor Intrusion Stakeholder Forum: Lenny Siegel, Center for Public Environmental Oversight

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Video Recording: March 2014 Vapor Intrusion Stakeholder Forum: Lenny Siegel, Henry Schuver, et al.

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07 - EPA/AEHS, 18 March 2014 - Workshop: Long Term Stewardship of Vapor Intrusion Exposures
  
00. AGENDA - Vapor Intrusion (VI) Exposures: The Challenges of, Need for, and Benefits of Long Term Stewardship: NOTE: These workshop presentations represent the speakers' perspectives and should not be construed to represent EPA determination or policy. View Details
  
00a. Workshop Presenter Bios: View Details
  
01. Welcome and history of EPA's VI workshops (slides only): Doug Grosse, Brian Schumacher, U.S. EPA ORD

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01a. Welcome and history of EPA's VI workshops (webinar recording - slides and audio): Doug Grosse, Brian Schumacher, U.S. EPA ORD

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02a. Dealing with TCE (a state perspective) (slides only): Paul Locke, MassDEP Bureau of Waste Site Cleanup

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02aa. Dealing with TCE (a state perspective) (webinar recording - slides and audio): Paul Locke, MassDEP Bureau of Waste Site Cleanup

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02b. TCE and vapor intrusion guidance - Region 9 update (slides only): Alana Lee, U.S. EPA Region 9

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02ba. TCE and vapor intrusion guidance - Region 9 update (webinar recording - slides and audio): Alana Lee, U.S. EPA Region 9

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02c. Memorandum: OEA recommendations regarding trichloroethylene toxicity in human health risk assessments (memo only): Marcia Bailey, U.S. EPA Region 10

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03. Overview of long term stewardship - a perspective for today's workshop (slides only): Henry Schuver, U.S. EPA ORCR

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03a. Overview of long term stewardship - a perspective for today's workshop (webinar recording - slides and audio): Henry Schuver, U.S. EPA ORCR

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04. Four winters of continuous vapor intrusion monitoring in Indianapolis - Temporal variability in indoor air (slides only): Chris Lutes, Brian Cosky, ARCADIS Inc.; Brian Schumacher, John Zimmerman, U.S. EPA NERL; Robert Truesdale, Robert Norberg, RTI International

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04a. Four winters of continuous vapor intrusion monitoring in Indianapolis - Temporal variability in indoor air (webinar recording - slides and audio): Chris Lutes, Brian Cosky, ARCADIS Inc.; Brian Schumacher, John Zimmerman, U.S. EPA NERL; Robert Truesdale, Robert Norberg, RTI International

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05. Lessons-learned from four years of intensive monitoring of a house over a dilute chlorinated hydrocarbon plume (slides only): Paul Johnson, Chase Holton, Yuanming Guo, Paul Dahlen, Emma Luo, Arizona State University; Kyle Gorder, Erik Dettenmaier, Hill AFB (Chevron)

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05a. Lessons-learned from four years of intensive monitoring of a house over a dilute chlorinated hydrocarbon plume (webinar recording - slides and audio): Paul Johnson, Chase Holton, Yuanming Guo, Paul Dahlen, Emma Luo, Arizona State University; Kyle Gorder, Erik Dettenmaier, Hill AFB (Chevron)

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06. Long term radon predicted from shorter term measurements - Implications for long term stewardship of contaminated sites (slides only): Dan Steck, St. John's University

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06a. Long term radon predicted from shorter term measurements - Implications for long term stewardship of contaminated sites (webinar recording - slides and audio): Dan Steck, St. John's University

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07. Evidence from large multi-family and commercial buildings (slides only): Chris Lutes, Robert Uppencamp, Brian Cosky, Nadine Weinberg, Chris Engler, Rachel Saari, ARCADIS Inc.; Kyle Hoylman, Protect Environmental

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07a. Evidence from large multi-family and commercial buildings (webinar recording - slides and audio): Chris Lutes, Robert Uppencamp, Brian Cosky, Nadine Weinberg, Chris Engler, Rachel Saari, ARCADIS Inc.; Kyle Hoylman, Protect Environmental

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08. Summary of evidence from "data-rich" studies and the challenges of using low-density monitoring data for vapor intrusion control (slides only): Chris Lutes, ARCADIS Inc.; Paul Johnson, Arizona State University; Robert Truesdale, RTI International

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08a. Summary of evidence from "data-rich" studies and the challenges of using low-density monitoring data for vapor intrusion control (webinar recording - slides and audio): Chris Lutes, ARCADIS Inc.; Paul Johnson, Arizona State University; Robert Truesdale, RTI International

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09. Layering institutional controls - Region 9 example (slides only): Alana Lee, U.S. EPA Region 9

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09a. Layering institutional controls - Region 9 example (webinar recording - slides and audio): Alana Lee, U.S. EPA Region 9

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10. MassDEP regulatory requirements for LTS at vapor intrusion sites (slides only): Paul Locke, MassDEP Bureau of Waste Site Cleanup

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10a. MassDEP regulatory requirements for LTS at vapor intrusion sites (webinar recording - slides and audio): Paul Locke, MassDEP Bureau of Waste Site Cleanup

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11. Legal and institutional controls: requirements for long term O&M and monitoring (slides only): David Gillay, Barnes & Thornburg LLP

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11a. Legal and institutional controls: requirements for long term O&M and monitoring (webinar recording - slides and audio): David Gillay, Barnes & Thornburg LLP

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12. Sub-slab depressurization (SSD): highlights and hurdles in EPA New England (slides only): Jim DiLorenzo, U.S. EPA Region 1

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12a. Sub-slab depressurization (SSD): highlights and hurdles in EPA New England (webinar recording - slides and audio): Jim DiLorenzo, U.S. EPA Region 1

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13. Long term stewardship through engineering controls: 16 year case history (slides only): Dave Folkes, Jeff Kurtz, Geosyntec Consultants, Inc.

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13a. Long term stewardship through engineering controls: 16 year case history (webinar recording - slides and audio): Dave Folkes, Jeff Kurtz, Geosyntec Consultants, Inc.

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14. AARST vapor intrusion mitigation credential and standards (slides only): Tony McDonald, A-Z Solutions, Inc.; Kyle Hoylman, Protect Environmental

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14a. AARST vapor intrusion mitigation credential and standards (webinar recording - slides and audio): Tony McDonald, A-Z Solutions, Inc.; Kyle Hoylman, Protect Environmental

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15. ESTCP research for improving the effectiveness, efficiency and sustainability of mitigation (slides only): Todd McAlary, Geosyntec Consultants, Inc.

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15a. ESTCP research for improving the effectiveness, efficiency and sustainability of mitigation (webinar recording - slides and audio): Todd McAlary, Geosyntec Consultants, Inc.

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16. Telemetric management and monitoring of vapor intrusion mitigation systems (slides only): Thomas Hatton, Clean Vapor LLC

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16a. Telemetric management and monitoring of vapor intrusion mitigation systems (webinar recording - slides and audio): Thomas Hatton, Clean Vapor LLC

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17 - Applying information technology for stewardship of groundwater contamination plumes (link to youtube video only): Bob Wenzlau, Terradex

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17a. Applying information technology for stewardship of groundwater contamination plumes (webinar recording - slides and audio): Bob Wenzlau, Terradex

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18. Report from vapor intrusion stakeholder forum: stakeholders and long-term management (slides only): Lenny Siegel, Center for Public Environment Oversight

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18a. Report from vapor intrusion stakeholder forum: stakeholders and long-term management (webinar recording - slides and audio): Lenny Siegel, Center for Public Environment Oversight

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19. Documenting the benefits of [regulatory-PRP-community] efforts to control VI (slides only): Henry Schuver, U.S. EPA ORCR; Robert Truesdale, RTI International

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19a. Documenting the benefits of [regulatory-PRP-community] efforts to control VI (webinar recording - audio only): Henry Schuver, U.S. EPA ORCR; Robert Truesdale, RTI International. Note: The audio is for presentation 19 while the video shows the title slide for pr  ... View Details
  
20. Collateral benefits of active soil depressurization for VI mitigation (slides only): William Angell, University of Minnesota

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20a. Collateral benefits of active soil depressurization for VI mitigation (webinar recording - slides and audio): William Angell, University of Minnesota

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21. Panel discussion starter: balancing criteria for selecting long term stewardship controls for VI - How can we verify that we are 95% confident of protectiveness? (slides only): Chris Lutes, ARCADIS Inc.

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21a. Panel discussion starter: balancing criteria for selecting long term stewardship controls for VI - How can we verify that we are 95% confident of protectiveness? (webinar recording - slides and audio): Chris Lutes, ARCADIS Inc.

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22. Life-cycle cost analysis for LTS under natural and controlled conditions - panel discussion starter (slides only): Dr. Ian Hers, Golder Associates Ltd.

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22a. Life-cycle cost analysis for LTS under natural and controlled conditions - panel discussion starter (webinar recording - slides and audio): Dr. Ian Hers, Golder Associates Ltd.

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23. Panel discussion - What does the evidence suggest is needed to provide long-term stewardship that is: long-lasting/sustainable/optimized? (slides only): Dave Folkes, Jeff Kurtz, Todd McAlary, Geosyntec Consultants

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23a. Panel discussion - What does the evidence suggest is needed to provide long-term stewardship that is: long-lasting/sustainable/optimized?: Dave Folkes, Jeff Kurtz, Todd McAlary, Geosyntec Consultants

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24. Least disruptive/most beneficial for occupants, owners, and communities (audio only): Lenny Siegel, Center for Public Environmental Oversight (CPEO)

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25. "Promptly" implementable and continuous (audio only): Alana Lee, U.S. EPA Region 9

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26. Panel Discussion Questions and Answers (audio only): View Details

07a - AEHS, 19 March 2014, San Diego - API PVI Workshop: Recent Developments in the Evaluation of PVI
  
00. Agenda - Recent Developments in the Evaluation of Vapor Intrusion at Petroleum Release Sites: agenda, presenters, contacts

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01. Methods for developing and applying screening criteria for the petroleum vapor intrusion pathway: Robin Davis, Utah Department of Environmental Quality

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02. Vapor intrusion risk pathway: latest regulatory updates: Blayne Hartman, Hartman Environmental Geochemistry

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03. PVI risk pathway: sampling and analytical issues: Blayne Hartman, Hartman Environmental Geochemistry

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04. PVI conceptual model: G. Todd Ririe, BP

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07b - AEHS, 19 March 2014, San Diego - Petroleum Hydrocarbon Vapor Intrusion I & II (main conf., slides only)
  
01. Evaluation of VI data relative to separation distance - a Michigan case study: Chris Mulry, GES, Inc.

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02. Ensuring occupational worker safety at vapor intrusion sites: Shukla Roy-Semmen, Department of Toxic Substances Control, California Environmental Protection Agency

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03. Recent regulatory issues & results from several EPA sites: ramifications on soil gas and IA sampling: Blayne Hartman, Hartman Environmental Geoscience

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04. Unexpected sources of petroleum hydrocarbons and chlorinated solvents in indoor air: Suzie Nawikas, H&P, Inc.

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06. Mitigation - What are the differences between PVI and VI?: Bill Morris, Vapor Mitigation Services, LLC

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07. Screening tools for assessing the petroleum vapor intrusion pathway: vertical screening distance can be applied in lateral direction: Robin Davis, Utah Department of Environmental Quality

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09. A rational approach to methane hazard assessment: John Sepich, Brownfield Subslab; Stephen Marsh, McKenna Long & Aldridge

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10. Vapor intrusion of methane - the challenge of low-risk sites: George DeVaull, Shell Global Solutions US, Inc.

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11. CO2 flux measurements to estimate natural source zone depletion - state of the practice and method validation using modeling: Ian Hers, Golder Associates Ltd.

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12. Use of temperature to determine relative rate of biodegradation in the vadose zone: G. Todd Ririe, BP

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13. Using temperature measurements in conjunction with aerobic biodegradation models: Robert E. Sweeney, Environmental & Petroleum Geochemistry

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09 - EPA/AEHS, 18 March 2013 - Vapor Intrusion Stakeholder-Involvement Forum
  
00 - Agenda: NOTE: These forum presentations represent the speakers' perspectives and should not be construed to represent EPA determination or policy.  ... View Details
  
00a - !Webinar recording (slides and audio): This is a movie that combines the audio and slides for the entire Stakeholders' Forum.            View Details
  
01. Welcome and introduction: Henry Schuver, U.S. EPA OSWER                    View Details
  
02. Pompton Lakes, NJ: Lisa Riggiola                         ... View Details
  
03. Dracut, MA: Rich Cowan                          ... View Details
  
04. San Antonio, TX: Robert Alvarado                         ... View Details
  
05. Ithaca, NY: Ken Deschere                         ... View Details
  
06. Asheville, NC: Lisa Baldwin;                       View Details
  
07. Mountain View, CA: Jane Horton                          ... View Details
  
08. Watertown, NY: Andy Williams                      View Details
  
09. Palo Alto, CA: Bob Moss                         ... View Details
  
10. Asheville, NC: Dave Ogren                       View Details
  
10a. Harlem, NY: Albert Elkerson                         ... View Details
  
11. Notification principles for vapor intrusion investigations: Lenny Siegel, Center for Public Environmental Oversight (CPEO)               View Details
  
12. The need for continuous indoor air monitoring: Lenny Siegel, CPEO                        ... View Details

10 - EPA/AEHS, 19 March 2013, San Diego - Workshop: Looking Beyond Natural Variation in Vapor Intrusion
  
0 - Workshop Agenda - Looking Beyond Natural Variation in Vapor Intrusion: NOTE: These workshop presentations represent the speakers' perspectives and should not be construed to represent EPA determination or policy. View Details
  
00a - Workshop Abstracts: View Details
  
00b - Workshop Presenter Bios: View Details
  
01. Welcome and history of EPA's VI workshops (slides only): Doug Grosse, Brian Schumacher, U.S. EPA ORD

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01a. Welcome and history of EPA's VI workshops (webinar recording - slides and audio): Doug Grosse, Brian Schumacher, U.S. EPA ORD

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02. U.S. EPA update: VI guidance status and other updates (slides only): Rich Kapusinski and Helen Dawson, U.S. EPA OSWER

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02a. U.S. EPA update: VI guidance status and other updates (webinar recording - slides and audio): Rich Kapusinski and Helen Dawson, U.S. EPA OSWER

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03. Setting the stage - our challenge: effective protection strategies, and a perspective on evaluating VI evidence (slides only): Henry Schuver, U.S. EPA OSWER

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03a. Setting the stage - our challenge: effective protection strategies, and a perspective on evaluating VI evidence (webinar recording - slides and audio): Henry Schuver, U.S. EPA OSWER

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04. Indoor air and soil gas temporal variability effects on sampling strategies: evidence from controlled and uncontrolled conditions in an Indianapolis duplex (slides only): Brian Schumacher, John Zimmerman, U.S. EPA ORD; Chris Lutes, ARCADIS; Robert Truesdale, RTI International

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04a. Indoor air and soil gas temporal variability effects on sampling strategies: evidence from controlled and uncontrolled conditions in an Indianapolis duplex (webinar recording - slides and audio): Brian Schumacher, John Zimmerman, U.S. EPA ORD; Chris Lutes, ARCADIS; Robert Truesdale, RTI International

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05. Multi-Year monitoring of a house over a dilute CHC plume: implications for pathway assessment using indoor air sampling and forced under-pressurization tests (slides only): Paul Johnson, Arizona State University

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05a. Multi-Year monitoring of a house over a dilute CHC plume: implications for pathway assessment using indoor air sampling and forced under-pressurization tests (webinar recording - slides and audio): Paul Johnson, Arizona State University

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06. Comparison of Sun Devil and Indianapolis studies (slides only): Robert Truesdale, RTI International; Chris Lutes, ARCADIS; Paul Johnson, Arizona State University

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06a. Comparison of Sun Devil and Indianapolis studies (webinar recording - slides and audio): Robert Truesdale, RTI International; Chris Lutes, ARCADIS; Paul Johnson, ASU; also open discussion from morning sessions

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07. Focus on spatial variability: building-to-building differences in indoor air concentrations from several sites with a large number of buildings (slides only): Todd McAlary, Geosyntec Consultants

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07a. Focus on spatial variability: building-to-building differences in indoor air concentrations from several sites with a large number of buildings (webinar recording - slides and audio): Todd McAlary, Geosyntec Consultants

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08. Vapor intrusion across space and time: a pilot community study in San Antonio (slides only): Jill Johnston, University of North Carolina

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08a. Vapor Intrusion across space and time: a pilot community study in San Antonio (webinar recording - slides and audio): Jill Johnston, University of North Carolina

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09. Focus on temporal variability: analysis of long-term unmitigated data from apartment buildings at CDOT MTL site and single family homes at the Redfield site (slides only): Jeff Kurtz, Dave Folkes, EnviroGroup Limited

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09a. Focus on temporal variability: analysis of long-term unmitigated data from apartment buildings at CDOT MTL site and single family homes at the Redfield site (webinar recording - slides and audio): Jeff Kurtz, Dave Folks, EnviroGroup Limited

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10. Characterizing variability in indoor air concentrations at vapor intrusion sites (slides only): Helen Dawson, Office of Superfund Remediation and Technology Innovation, OSWER

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10a. Temporal measures of variability in indoor air concentrations arising from VI in multiple buildings at multiple sites (webinar recording - slides and audio): Helen Dawson, U.S. EPA OSWER; Also open discussion of afternoon sessions

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11. Related evidence from radon VI studies from buildings across the U.S and the world (slides only): Dan Steck, Schaefer Environmental Radiation Laboratory at St. John's University

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11a. Related evidence from radon VI studies from buildings across the U.S and the world (webinar recording - slides and audio): Dan Steck, Schaefer Environmental Radiation Laboratory at St. John's University

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12. Report out from the Stakeholders' Forum - held 3/18/13 (slides only): Lenny Siegel, Center for Public Environmental Oversight (CPEO)

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12a. Report out from the Stakeholders' Forum - held 3/18/13 (webinar recording - slides and audio): Lenny Siegel, Center for Public Environmental Oversight (CPEO)

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13. Panel Discussion: Three questions posed to the expert panel.

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13a. Panel Discussion - Part I - Effective Sampling Strategies: Paul Johnson, ASU; Helen Dawson, U.S. EPA; Dan Carr, Sanborn | Head

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13b. Panel Discussion - Part II - Effective Protection Strategies: Henry Schuver, Alana Lee, U.S. EPA; Dave Folkes, EnviroGroup; Lenny Siegel, CPEO

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13c. Panel Discussion - Part III - Research Needs: Todd McAlary, Geosyntec; Chris Lutes, ARCADIS; Jeff Kurtz, EnviroGroup

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13w. Panel Discussion Webinar Recording (slides and audio): Slides and audio for the entire panel discussion.

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11 - AEHS, 20 March 2013, San Diego - Petroleum Hydrocarbon Vapor Intrusion I & II (main conf., slides only)
  
01. The myth behind the use of helium as a tracer gas for leak detection on soil gas sample collection projects: Steve Jones, Jones Environmental, Inc.

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02. Soil gas sampling: evaluation of leak check procedures: Suzie Nawikas, Dave Balkenbush, H&P Mobile Geochemistry, Inc.

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03. Innovative Continuous Soil Gas/Vapour Measurement and Improved Risk Assessment: Peter Morris and Geoff Hewitt, Ion Science

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04. Use of crawl space sampling data and other lines of evidence for evaluating vapor intrusion: C.Y. Jeng and William Bosan, Human and Ecological Risk Office, California EPA DTSC

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05. Analysis and interpretation of time-variable vapor intrusion data: pressure driven flow across building foundations: George DeVaull, Shell Global Solutions

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06. TPH methods and measurements in U.S. EPA's petroleum vapor intrusion (PVI) database: Robert Truesdale, RTI International; Heidi Hayes, Eurofins Air Toxics; Ian Hers, Golder Associates

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07. Documenting an aerobic transition layer to delineate vapor intrusion risk at a petroleum hydrocarbon release site: Robert O'Laskey, James W. Babcock, Elisabeth Hawley, Jennifer Hilario, ARCADIS

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08. The role of methanogenesis in PVI evaluation at sites with large LNAPL plumes: Shankar Subramanian, URS Corporation; Robert Sweeney, EPG; David Tsao, BP America

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09. Effect of ethanol biodegradation on soil gas advection and oxygen demand: modeled results for aerobic and methanogenic conditions: Ian Hers, Parisa Jourabachi, Golder Associates; George DeVaull, Shell Global Solutions

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10. Screening distances for petroleum vapor intrusion risk assessment: Matthew Lahvis, Shell Oil Company

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11. Australian PVI Guidance: Jackie Wright, EnRiskS

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13. Empirical data to evaluate the occurrence of sub-slab O2 depletion shadow at petroleum hydrocarbon-impacted vapor intrusion sites: Ravi Kolhatkar, Emma Hong Luo, Tom Peargin, Chevron Energy Technology Company

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14. Comparison between biodegradation model predictions and field data from PVI databases: Robert E. Sweeney, EPG; Jackie Wright, EnRiskS

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12 - AEHS, 21 March 2013, San Diego - Vapor Intrusion (main conference, slides only)
  
01. Evaluation of selected environmental factors at a vapor intrusion study site: Chase Holton, Hong Luo, Yuanming Guo, Paul Dahlen, Kyle Gorder, Erik Dettenmaier, Paul C. Johnson; Arizona State University

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02. Determination of polychlorinated biphenyls in soil vapor using EPA Method TO-17: Heidi Hayes, Jason Arnold, and Diane Benton; Eurofins Air Toxics

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03. Fan longevity and performance for long-term VOC reduction at the Redfield site: Jeff Kurtz, EnviroGroup Limited

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04. Addressing action decisions for long and short term chlorinated vapor intrusion exposures: Rod Thompson; Risk Options, LLC

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05. New techniques for assessing the age, location and VI potential of VOC source areas beneath buildings: Craig Cox, Cox-Colvin & Associates, Inc.

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06. A summary of recent vapor intrusion projects by EPA-ORD/NERL: Blayne Hartman, Hartman Environmental Geoscience

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