On Sunday, December 14, 2025, the EPA National Response Center passed a report to EPA Region 8 regarding a mercury spill in Littleton, Colorado. The spill occurred at
a single-family home where two people reside. It was contained to one residence and EPA concluded its cleanup on Friday, December 19, 2025.
A beaker with
approximately 100-125 milliliters of elemental, or liquid, mercury spilled onto a hardwood floor in the home's living room. The residents immediately evacuated and called 911, after which the South Metro Fire
Department arrived on-scene and began a cleanup. The department left a double-sealed
container of mercury that it collected inside the home overnight for EPA's assessment.
EPA mobilized to the site in the early morning of Monday,
December 15, to screen the home for mercury vapors with specialized equipment and conduct additional cleanup. EPA and its contractors cleaned and reassessed the site until the mercury was fully removed and the home was safe for occupancy. The residents returned to their home.
Elemental mercury vaporizes and breathing in mercury vapor is dangerous. If mercury spills, do not attempt to clean it yourself. Instead, call the EPA National Response Center: (800) 424-8802.
For more information about elemental mercury, please visit the EPA website.
