EXECUTIVE SUMMARY

A review has been conducted of the adequacy of the BFI/CECOS Aber Road hazardous waste landfill facility Closure and Post-Closure Plans that have been approved by the Ohio EPA. It has been found that the BFI/CECOS hazardous waste landfill facility contains large amounts of hazardous and deleterious chemicals that are a threat to public health, ground and surface water quality, domestic water supplies, and the environment. This threat will exist effectively forever. Clermont County’s domestic water supply for approximately 30,000 people, which depends on the East Fork of the Little Miami River and Harsha Lake, as well as the environmental resources along Pleasant Run Creek and the East Fork of the Little Miami River, including Harsha Lake, are significantly threatened by the inadequacies in the Ohio EPA-approved BFI/CECOS Aber Road hazardous waste landfill facility Closure and Post-Closure Plans. A significant error was made in the development of the landfilling approach used by BFI/ CECOS where large amounts of caustic/alkali chemicals were added to some of the waste subcells for the purpose of immobilizing some metals. This caustic material has caused the p