Hydrite Chemical Avganics is a superfund site located at 114 North Main Street, Cottage Grove, WI 53527. The Environmental Protection Agency (EPA) identifies sites such as Hydrite Chemical Avganics 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. Hydrite Chemical Avganics 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.