Listening session for draft Memo No. 22
On December 17, 2018, we held a listening session on draft Implementation Memo No. 22 regarding short-term trichloroethene (TCE) toxicity from vapor intrusion. The listening session provided participants an opportunity to ask questions and give feedback on this document. Read the December 2018 listening session summary and presentation slides.
This figure shows volatile chemicals migrating from contaminated soil and groundwater plumes into buildings. Chemicals are entering through cracks in the foundation and openings for utility lines. Atmospheric conditions and building ventilation are influencing vapor intrusion. Source: Environmental Protection Agency's vapor intrusion webpage, accessed October 2017.