By Rebecca A. Davis and Jeryl L. Olson

Seyfarth Synopsis:  Under the Trump Administration, the U.S. Environmental Protection Agency (EPA) has fully or partially deleted 22 sites from the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) National Priorities List (NPL).  This is the largest number of deletions in one year since 2005. 

However,

By Andrew H. Perellis, Kay R. Bonza, and Craig B. Simonsen

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Seyfarth Synopsis: With the EPA adding the consideration of vapor intrusion in its Superfund site investigations, hundreds of sites that previously would not rank high enough to qualify for listing on the National Priorities List of contaminated sites would now likely

By Andrew H. Perellis and Craig B. Simonsen

EPA SignThe U.S. Environmental Protection Agency (EPA) has just announced a proposed rule to add a subsurface intrusion (SsI) component to the Superfund Hazard Ranking System (HRS).  Addition of a Subsurface Intrusion Component to the Hazard Ranking System, RIN 2050-AG67 (February 3, 2016).

By adding the consideration

By Jeryl L. Olson and Craig B. Simonsen

Power Lines and Pulp Mill PollutionIn a busy day for vapor intrusion, last week the U. S. Environmental Protection Agency made several announcements about vapor intrusion.

First, it announced it had submitted a draft rule to the White House OMB seeking to add vapor intrusion to the pathways evaluated under the Hazard

By Andrew H. Perellis, Philip L. Comella, and Craig B. Simonsen

Speaking of the U.S. EPA’s draft guidance addressing vapor intrusion at contaminated sites, Mathy Stanislaus, the Agency’s Assistant Administrator for Solid Waste and Emergency Response, recently told BNA Bloomberg that “my plan is to get this out this year.”

The Agency published its

By Andrew H. Perellis and Jeryl L. Olson

Properties in Illinois that are currently contemplating or pending sale, and properties with existing No Further Remediation (NFR) letters, may encounter difficulties and issues arising under the recent indoor inhalation rules adopted in Illinois. In the Matter of: Tiered Approach to Corrective Action Objectives (TACO) (Indoor Inhalation):

By Andrew H. Perellis and Craig B. Simonsen

The environmental community continues to focus on the vapor intrusion pathway — guidance has been issued by ASTM, ITRC and more than 25 States. Most recently, the U.S. Environmental Protection Agency’s (EPA or Agency) Office of Underground Storage Tanks (OUST) just published an information paper entitled, “

By Philip L. Comella and Craig B. Simonsen

The U.S. Environmental Protection Agency (EPA or Agency) just released its Toxicological Review of Trichloroethylene (EPA/635/R-09/011F, September 28, 2011) (Toxicological Review). This publication represents the first time that EPA has classified trichloroethylene (TCE) (CASRN 79-01-6) as a human carcinogen regardless of the route of exposure.