Alaska Department of Environmental Conservation Division of Spill Prevention and Response Contaminated Sites Remediation Program

The science of evaluating the complex indoor air pathway is evolving. The following Ecology and Environment, Inc memo summarizes the different and sometime divergent approaches taken by the federal and state governments to evaluate the pathway. Alaska Department of Environmental Conservation is presently developing a policy for the evaluation of the indoor air pathway that is appropriate for conditions in Alaska. In the absence of such guidance and for consistency within the Contaminated Sites program, project managers should consult with their supervisors on when and how to evaluate the pathway.