Camp Lejeune is a large Marine Corps base and military training facility that covers nearly 250 square miles in Onslow County, North Carolina. It was opened in 1942. Camp Lejeune has been used as both a base of operations for the Marine Corps and as a military operations and training facility used by various branches of the armed forces.

In 1982, the Camp Lejeune water supply underground storage tanks were found to be contaminated with the volatile organic compounds trichloroethylene (TCE) and perchloroethylene (PCE), Benzene, Toluene, Vinyl Chloride and over 70 other contaminants.