"We're going to see more and more of this," Markellis observed ruefully.The cyanide crystals were removed, but the trichloroethylene had soaked into the ground and contaminated at least two nearby wells, producing a noticeable smell and solvent properties.

The Lehigh Valley Railroad began supplying affected homes with drinking water beginning in 1971, and later provided filter systems for contaminated wells.

Beginning in August 2011, 14 students (13 girls and 1 boy) from the LeRoy Junior-Senior High School began reporting myriad perplexing medical symptoms including verbal outbursts, tics, seizure activity, and speech difficulty.

The next day, Dr. Laszlo Mechtler, a neurologist treating most of the girls, was given permission to share the diagnosis of conversion disorder and mass psychogenic illness.

Unsatisfied with the results of the investigation, the girls and their parents spoke out publicly against their diagnosis, stating that they believed the situation warranted further scrutiny from outside sources.