More than 130,000 former residents of Camp Lejeune, a military base for marines in North Carolina, have registered complaints that blame the military for exposing them to contaminated water.
Some of those allegedly affected by the contamination have accused the US Marine Corps of covering up the problem and failing to inform residents of the health risk.
A spokesman for the corps denied the allegations in an email to Al Jazeera.
Even so, environmental officials have reported that the military allegedly owns 129 of the most-contaminated sites, indicating that it may be one of the largest polluters in the US.
Kimberly Halkett reports from Camp Lejeune, North Carolina.
At Al Jazeera English, we focus on people and events that affect people's lives. We bring topics to light that often go under-reported, listening to all sides of the story and giving a 'voice to the voiceless.' Reaching more than 270 million households in over 140 countries across the globe, our viewers trust Al Jazeera English to keep them informed, inspired, and entertained. Our impartial, fact-based reporting wins worldwide praise and respect. It is our unique brand of journalism that the world has come to rely on. We are reshaping global media and constantly working to strengthen our reputation as one of the world's most respected news and current affairs channels.