Welcome to the U.S. Department of Energy (DOE) website for cleanup at the Santa Susana Field Laboratory (SSFL). Our agency mission is to make sure that the land that held the former Energy Technology Engineering Center (ETEC) in Area IV at SSFL is cleaned up so that it is safe for future use.
This site includes resources about the history of the site, the extensive analysis conducted by multiple agencies, and the current state of remediation.
Quick Links
- CONNECT Series
- Final Environmental Impact Statement
- Supplemental Environmental Impact Statement
- CleanUpdate Newsletters
- Document Library
- 2024 Programmatic Agreement Annual Report
- Characterization & Cleanup
- Annual Site Environmental Reports
- Study Evaluating Soil Treatment Options
- Study Evaluating Chemical Contamination
- Groundwater activities at SSFL
- EPA Study on Radioactivity
- Community

SSFL is located in eastern Ventura County, California, close to the cities of Simi Valley, Chatsworth, West Hills, and Woodland Hills. The site is comprised of four distinct operational areas with two adjacent undeveloped properties.

DOE recognizes that there is contamination onsite that needs to be addressed and removed. Through comprehensive analyses and studies, DOE has mapped where the contamination is located and is working with the state to finalize cleanup plans.

DOE is committed to an open and transparent cleanup process of Area IV and public participation is a crucial part to this process. DOE has worked extensively with the community to review onsite conditions through a series of programs and events in addition to quarterly newsletters.

SSFL neighbors several local communities and serves as a habitat for native plants and animals. While extensive analysis by federal and state agencies shows communities near Area IV are safe, there is contamination onsite that needs to be addressed. Learn about environmental monitoring, cultural and biological studies, engagement with local communities, and former worker health and safety.
Learn how to build a pool noodle rocket at home for some summer fun.June 19, 2026
Learn about the mule deer, the only species of deer at SSFL.June 19, 2026
ETEC team boosts engagement efforts with presentations to local volunteer groups, participation in local events and hosting site tours at SSFL for interested community members.June 19, 2026
At the second CONNECT Series meeting in May 2026, ETEC staff shared about past operations and cleanup at the Sodium Reactor Experiment and Former Sodium Disposal Facility. along with ongoing remediation efforts.June 19, 2026
Learn about DOE's response during the Sandy Fire in May 2026, including air monitoring efforts conducted during the blaze that burned near SSFL but did not cross onto the site.June 19, 2026
Josh Mengers, ETEC's federal project director, thanks fire crews for protecting the community during the Sandy Fire incident in May 2026 and preventing the blaze from crossing onto SSFL. He also shares about DOE's role in the response during the fire.June 19, 2026
Learn the science behind why yellow is the color for safety and also see some fun ways to create your own rainbow.March 13, 2026
Learn about the beautiful yet deadly jimsonweed, one of the many unique plant species that flourish at SSFL.March 13, 2026

ETEC Office
980 Enchanted Way, Suite 108
Simi Valley, CA 93065
For directions, click here.
Email
etec@emcbc.doe.gov