Merrimac Chemical Co. and its successor, Monsanto Co., take the blame for this toxic place. Just 12 miles from Boston, Industri-plex was a plant for manufacturing everything from insecticides and explosives, to acids and countless other chemicals. Overall, the site represents about 130 years of chemical manufacturing, and has been leaching these pollutants into the environment for at least that long.
To make matters worse, a pervasive "rotten egg" odor exudes from the site caused by hydrogen sulfide gas generated by the decay of the buried animal hides from glue manufacturing wastes.
Industri-plex was designated as a Superfund site in 1981, and cleanup efforts have been extensive. The site is now houses a regional transportation center (inset photo) and a Target store.