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 Ilana R. Morady and Craig B. Simonsen

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) empowers the U.S. Environmental Protection Agency (EPA) to issue an order “as may be necessary to protect public health and welfare and the environment.”  A party receiving such an order when not liable under CERCLA for response costs

By Andrew H. Perellis

Superfund Sites with Dense Non-Aqueous Phase Liquids (DNAPLs) may require additional groundwater treatment under a recent guidance document issued by the U.S. Environmental Protection Agency (EPA) on September 19, 2011. The OSWER directive, Clarification of OSWER’s 1995 Technical Impracticability Waiver Policy, #5355.5-32, instructs Regions to discard the 1995 guidance document

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.