Most of the lawsuits involved Mid-Ohio Valley residents who said they developed cancer and other ailments by drinking water contaminated with C8 â¦ C8 contamination is so widespread that, according to this article in the Intercept, 99 percent of Americans have the chemical in their blood. At the time, C8 was the subject of multiple lawsuits in West Virginia and Ohio, after regulators determined C8 from a DuPont plant had contaminated public water â¦ The ReSource generated a map using water testing data available from the U.S. EPA. DuPontâs own documentation specified that C8 was not to be flushed into surface waters, but the company did so for decades. Itâs also been found in the blood of people from all parts of the world. So where is it located? Because the chemical can persist in water, communities along the Ohio River -- and around the U.S. -- are still grappling with the environmental fallout of contamination from C-8 and similar chemicals. More than 190 sites were contaminated in Michigan â a reflection of the state's robust testing program â â¦ PFOA/PFOS have been found in as many as 194 U.S water suppliers across 33 states (including Puerto Rico). PFC contamination of drinking water first came to national attention in 2001, when attorney Robert A. Bilott filed a class-action suit on behalf of 50,000 people whose drinking water was polluted by PFOA from DuPont's Teflon plant in Parkersburg, W. Va. The map shows contamination at 117 military sites. The chemical seeped into the water supplies of the communities of Lubeck and Little Hocking, immediately west of Parkersburg, and the city of Belpre, Ohio, just across the river; and three other water systems.. What is C8 Chemical Contamination? C8 chemical contamination refers to the environmental presence of specific compounds within the family of perfluoroalkyl and polyfluoroalkyl substances (PFAS), specifically those with an 8-carbon chain (C8) structure.The two chemicals in this family are perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). The most widely studied are PFOA (also known as C8) â used for decades to make Teflon non-stick â and PFOS, used to make Scotchgard water repellent. When water flows out of the faucet and into a glass, it usually appears clean and healthy. And this past February, DuPont and Chemours doled out more than $670 million to settle a class-action lawsuit involving C8 water contamination in the Ohio River Valley. Contamination levels are the highest in the mid-Ohio River Valley, with 44 tons released into the air and the Ohio River, and in Michigan. Instead, they decided to establish a C8 Science Panel dedicated to studying the link between C8 in drinking water and human disease. A report released Wednesday, though, found harmful contaminants in the Tennessee water â¦ They donât break down.