Woodbridge Mercury Spill Er is a superfund site located at 4015 Woodbridge Avenue, Cleveland, OH 44109. The Environmental Protection Agency (EPA) identifies sites such as Woodbridge Mercury Spill Er because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Woodbridge Mercury Spill Er is currently registered as an Active superfund site by the EPA. However, it is not on the NPL (National Priorities List), which means the EPA does not consider it one of the nation's most hazardous waste sites.