1. Recent Developments in the Evaluation of Vapor Intrusion at Petroleum Release Sites 25 th Annual International Conference on Soil, Water, Energy, and Air Mission Valley, San Diego, California March 23-26, 2015 Workshop 7 March 24, 2015 6:30pm – 9:30pm  Robin Davis, Utah Department of Environmental Quality, Salt Lake City, UT  George DeVaull, Shell Global Solutions, Houston, TX  Blayne Hartman, Hartman Environmental Geoscience, Solana Beach, CA  Todd Ririe, BP, La Palma, CA

2. Robin V. Davis, P.G., Environmental Scientist, Project Manager, Utah Department of Environmental Quality, Division of Environmental Response and Remediation, Leaking Underground Storage Tank Program, 195 North 1950 West, 1st Floor, Salt Lake City, Utah 84116, Phone (801) 536-4177, e-mail: rvdavis@utah.govrvdavis@utah.gov Contact Information G. Todd Ririe, PhD., P.G., Remediation & Engineering Technology, BP, 4 Centerpointe Drive, La Palma, CA 90623, Phone: (714) 670-3062, Email: todd.ririe@bp.com todd.ririe@bp.com George DeVaull, PhD., Shell Global Solutions US Inc., 3333 Highway Six South, Houston, TX 77042., Phone: (281) 544–7430, E-mail: george.devaull@shell.comgeorge.devaull@shell.com Blayne Hartman, PhD., Hartman Environmental Geoscience, 717 Seabright Lane, Solana Beach, CA 92075, Phone: (858) 204-6170, Email: blayne@hartmaneg.comblayne@hartmaneg.com

3. 6:30 –6:35Welcome, Introductions, Safety Issues: Todd Ririe, BP 6:35-6:45Update on ITRC PVI : Todd Ririe 6:50-7:00Regulatory Overview, EPA OUST / OSWER: Blayne Hartman, Hartman Environmental Geosciences 7:00-7:30 Biovapor Model; Models and Exclusion Criteria: George DeVaull, Shell Global Solutions 7:30 – 8:00 Methods for Developing and Applying Screening Criteria for the Petroleum Vapor Intrusion Pathway : Robin Davis, Utah Department of Environmental Quality 8:00 - 8:30 Updates on Sampling and Analysis: Blayne Hartman 8:30 – 9:00Case Studies and Lessons Learned: Todd Ririe 9:00-9:30Summary: All Workshop Agenda

4. Information USEPA OUST: http://epa.gov/OUST/cat/pvi/index.htmhttp://epa.gov/OUST/cat/pvi/index.htm Contact: Hal White at: white.hal@epa.govwhite.hal@epa.gov USEPA OSWER http://www.epa.gov/oswer/vaporintrusion/http://www.epa.gov/oswer/vaporintrusion/ Contact: Rich Kapuscinski Kapuscinski.Rich@epamail.epa.govKapuscinski.Rich@epamail.epa.gov ITRC www.itrcweb.orgwww.itrcweb.org Workshop Slides: http://www.api.org/environment-health-and- safety/clean-water/ground-water/vapor-intrusion BioVapor Software: http://www.api.org Search: “BioVapor”http://www.api.org Questions: Roger Claff, claff@api.org;claff@api.org Bruce Bauman, Bauman@api.orgBauman@api.org