| This report documents a USEPA workshop in September 2015 in Arlington, VA, and included subject-matter experts from academia. The workshop purpose was to exchange information concerning how to evaluate or predict the potential for leaching of semi- or non-volatile organic constituents at contaminated sites where in place treatment has been used to control migration, and from waste that is disposed or re-used. Workshop discussions focused on identifying technical issues for further consideration to support the development of tools that may be used in making determinations of protectiveness and regulatory compliance. |