Pemaco Maywood is a superfund site located at 5050 Slauson Boulevard, Maywood, CA 90270. The Environmental Protection Agency (EPA) identifies sites such as Pemaco Maywood 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. Pemaco Maywood is currently registered as an Active NPL superfund site by the EPA. Because it is on the NPL (National Priorities List), Pemaco Maywood is considered one of the worst hazardous waste sites identified by the EPA.