From Envirowiki

the Ashtabula is a severely contaminated river in Ohio, and a tributary of Lake Erie. a voluntary rehabilitation project is underway.

[edit] 1 Contaminants

contaminants include:

• polychlorinated biphenyls (PCBs)
• chlorinated benzenes
• chlorinated ethenes
• hexachlorobutadiene
• polycyclic aromatic hydrocarbons (PAHs)
• other organic chemicals, heavy metals and low-level radionuclides.

[edit] 2 Sources

• Ashtabula River and Harbor - Natural Resource Damage Assessment