Almaden Quicksilver Park is a superfund site located at Almaden & Mine Hill Rds, San Jose, CA 95112. The Environmental Protection Agency (EPA) identifies sites such as Almaden Quicksilver Park 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. Almaden Quicksilver Park 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.