Marines and their families living and working at Camp LeJeune, N.C. for three decades have been exposed to toxic contaminated drinking water. As many as one million people may have been exposed.The groundwater contamination was caused from two sources:
The first source was a dry-cleaning facility that during the time period studied was located directly adjacent to Camp Lejeune that released its wastewater (which contained tetrachloroethylene, a dry cleaning solvent, also known as perchloroethylene or PCE) into a septic tank located behind the business. Over a period of time, the chemical moved through the sand and into the groundwater under Camp Lejeune, polluting some drinking water wells providing water to the Tarawa Terrace Family Housing Area.
The other source was a combination of the effects of industrial operations, past waste-disposal standards and practices, and leaking underground storage tanks.
This toxic cocktail is linked to leukemia, non-Hodgkin's lymphoma, birth defects, and several other cancers. Upon hearing about the investigation numerous Marines contacted governmental sources wanting to know if their cancer was associated with the toxic drinking water issues.
http://www.atsdr.cdc.gov/sites/lejeune/faq_water.html