Montrose Chemical Corp. Superfund Site in Torrance, CA

The Montrose property is approximately 13 acres in size and is located at 20201 South Normandie Avenue in Los Angeles, California. At this location, Montrose manufactured technical grade dichlorodiphenyltrichloroethane (DDT) from 1947 to 1982. Montrose terminated its production process in 1982, and the plant was fully demolished by 1983. The property was re-graded and capped with asphalt in 1985. EPA proposed the Site for the Superfund National Priorities List (NPL) in 1984, and the proposal was finalized in 1989. Additional details regarding the historical Montrose operations at the property are provided in EPA’s Final Remedial Investigation Report for the Montrose Superfund Site (EPA, 1998).

This website has been generated by Montrose Chemical Corporation of California to provide the public access to documents associated with the various Operable Units (OU) of the Montrose Torrance Site. This website is not an official government website and is not created or maintained by the US Environmental Protection Agency. The below link will send the user to the online document repository, where documents are organized by title, date, OU, and other qualifiers (and can be downloaded readily if desired). Documents will continue to be uploaded by Montrose on a routine basis.

For more information, including current site activities and contact information of EPA Project managers, please visit the official US Environmental Protection Agency – Montrose Chemical Corporation Superfund Site.