Orange County, California water districts are considering a massive lawsuit over PFAS contamination of the water supply, although they’re not likely to target the largest polluter – the US military. Instead, they’ll probably go after 3M and DuPont and a handful of other companies that manufacture PFAS products. The municipal water folks, who have been serving PFAS-tainted water to the public for years, are now faced with a $1 billion clean-up bill and they are looking for someone to pay for it.