March 21, 2017 - AEHS Morning Session: EPA Vapor Intrusion Technical Workshop
EPA will convene a technical workshop on vapor intrusion entitled, Finding Practical Solutions for the Chlorinated Vapor Intrusion Pathway: Helping RCRA Facilities Meet Significant Challenges. If you can attend the AEHS West Coast Conference, please join in person. If you cannot be at the Conference, you can observe and listen to the workshop session below via webinar.
Webinar: EPA Vapor Intrusion Technical Workshop - Finding Practical Solutions for the Chlorinated Vapor Intrusion Pathway: Helping RCRA Facilities Meet Significant Challenges
Tuesday, March 21, 2017, 8:30 am – 12:00 pm Pacific time.
Workshop Abstract:
This half-day workshop will be focused on finding practical evidence-based solutions to help RCRA facilities meet their near- and long-term obligations under USEPA’s RCRA cleanup program. The Chlorinated Vapor Intrusion (CVI) pathway has been identified as a ‘barrier’ to meeting RCRA cleanup goals, such as enduring Final Remedy Decisions, for numerous reasons. These reasons include the limited resources/oversight for initial and long-term monitoring. To address this ‘barrier’, we are focusing on practical means to help validate expectations and improve the long-term reliability of proposed CVI decisions with the minimum amount of costly sampling, e.g., through the increased use of Hypothesis Testing. The following are some examples of Hypothesis Testing this workshop will address to help minimize the number of costly indoor air samples needed:
· Testing sample representativeness - Using existing statistical methods adapted for CVI samples (indoor air, soil gas and vapor sources) – Presentation and panel discussion of an outlined draft:
o Statistical Toolbox for RCRA CVI Decisions
· Statistical testing of the relationship between target (CVOC) compounds and indicators/ tracers/surrogates, including new results from a ‘data-rich’ study in UT
· Improving the odds of sample representativeness (across space and time.) Presentation and panel discussion of an outlined draft:
o Indicators, Tracers & Surrogates Toolbox for RCRA CVI Decisions
· Validation testing of vapor control technologies – Review of indoor air treatment units & new ORD research on area-wide mitigation via soil vapor extraction (SVE)
· Update on matching the nature of the risk, the mitigation method effectiveness needed, and the rigor and duration of follow-up monitoring (including consideration of surrogates)
Webinar Details:
There is no cost to attend this webinar. Attendees may choose to listen using their computer speakers*. Participants will have the opportunity to submit questions online during the webinar through the webinar software.
When you register, please be sure to answer the survey question on the number of people attending per line so that we can get an accurate attendance count. After registering you will receive a confirmation email containing information about joining the Webinar. You also will receive a link to the final agenda for the workshop in a separate email.
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* Although computer speakers are the preferred option, a non-toll free number will be provided in case webinar participants want to use their phones. The toll-based phone number can be dialed by all meeting participants. Participants are then charged their standard long-distance rate for calling this toll-based number, just as if they made a regular long-distance call.