Rockwell Intl Rocketdyne Div Nasa is a superfund site located at Woolsey Canyon Road, Simi Valley, CA 93063. The Environmental Protection Agency (EPA) identifies sites such as Rockwell Intl Rocketdyne Div Nasa 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. Rockwell Intl Rocketdyne Div Nasa 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.