-
Plutonium
Rocky Flats workers begin using plutonium to build nuclear weapons triggers. -
Period: to
Used Plutonium to build nuclear weapons
-
Rocky Flats Fire
A fire at Dow Chemical Co. releases a small amount of radioactive plutonium contamination. The public becomes aware of contaminant releases from Rocky Flats. -
Investigation Begins
Agents from FBII, Justice Department, and EPA raid Rocky Flats to investigate allegations of environmental crimes. -
Agreement in Principle
Colorado Governor Roy Romer signs an Agreement in Princiiple with the Department of Engergy to fund state oversight of various Rocky Flats health and environmental studies. -
Cleanup Begins
Cleanup of contamination at Rocky Flats begins.