PBB Crisis: In the 1970's Michigan dairy cattle were accidently poisoned with toxic flame retardant. Their products were consumed by millions of Michigan residents.
Poisoning Michigan: Author revisits PBB crisis 30 years later, Great Lakes Echo (Michigan State
Woburn Water Contamination: 10 miles from the Fenway, Woburn, MA was the center of a water contamination disaster in the 1960's and 70's, caused by industrial waste.
Did Water Kill Children in Woburn?In Bellwether Case, Massachusetts Families Link Contamination With Leukemia, Washington Post
Superfund Sites: Places where industrial chemicals have been known to have contaminated the water and soil, and cleanup is needed. For many sites, cleanup is expensive and nearby residents live with unknown exposures every day.
The Ugly Truth: Mass. Superfund Sites Still Toxic Nearly 30 Years And More Than $1B Later, WBUR
Environmental Protection Agency (EPA)'s page on Superfund sites, including a search where you can find these sites near you.
Lead in the water in MA schools
High lead levels found in water at hundreds of schools, Boston Globe
Assistance Program for Lead in School Drinking Water, MA.gov