Havre De Grace Plt is a superfund site located at 200 Block Juniata Street, Havre De Grace, MD 21078. The Environmental Protection Agency (EPA) identifies sites such as Havre De Grace Plt 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. Havre De Grace Plt 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.