Secrets, denials and toxic water: C8 in the Ohio River Valley

In many ways, DuPont’s environmental crisis in the Ohio River Valley is now playing out in southeastern North Carolina, where the company made C8 at its Fayetteville Works plant before switching to a compound called GenX.

Thirty-four years ago, an employee from a DuPont plant near Parkersburg, West Virginia, filled a jug with tap water from a little general store just across the Ohio River called Mason’s Village Market.

An internal DuPont document shows that the company was secretly testing the water for ammonium perfluorooctanoate — better known as C8. DuPont employees also took samples from stores in eight other unsuspecting communities in the Ohio River Valley.