On March 15, 2004, a fire broke out at the Thermo Fluids oil recycling
Portland, Oregon. The fire resulted in the release of
approximately 1,000 gallons
of used motor oil, 700 gallons of sulfuric
acid and 100 gallons of sodium hydroxide
into Johnson Creek, a tributary
to the Willamette River. The release of oil and acid
extensive injury to fish and other aquatic resources.
Survey crews recovered 1,873 dead fish, including 57 lampreys and 5 steelhead.
Several species of waterfowl and semi-aquatic mammals that inhabit
Johnson Creek also may have been directly or indirectly impacted by the spill.