US v. Washington State Dept. of Transp., No. 08-5722RJB (W.D. Wash. June 7, 2010).

Washington State Department of Transportation (WSDOT) constructed a drainage system to protect a roadway from water damage. Coal tar migrated from the adjacent soil through the drainage system and into a nearby waterway. The Court held that WSDOT is strictly liable under CERCLA as an arranger for the contamination.