The Summerdale town well was shut down in January after standard tests found high levels of the chemical ethylene dibromide, according to a town report. Tests found ethylene dibromide levels of ...

Shell Oil Co. plant explosion in Belpre, Ohio, in May 1994, spilling ethylene dibromide into the Ohio River. • Massey Coal coal-waste impoundment failure in October 2000 on the Big Sandy River.