The Federal Circuit held that the U.S. government must reimburse four oil companies for CERCLA costs they incurred cleaning up contamination stemming from the production of high-octane aviation gas (avgas) during World War II.

A district court held that a coal company violated the CWA and SMCRA by discharging excessive amounts of selenium into the waters of West Virginia.

The Second Circuit upheld a lower court decision dismissing a developer's CERCLA indemnity claim for remediation costs it incurred as the owner of a building contaminated by toxic dust from the September 11, 2001, attack on the World Trade Center.