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 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
DOE's ETEC team will once again have a booth at the Simi Valley Street Fair on May 2.March 13, 2026
Josh Mengers, DOE's federal project director for ETEC, shares an update on building demolition work at SSFL during a community meeting in January 2026.March 13, 2026
Josh Mengers, DOE's federal project director for ETEC, highlights the new Community Outreach, Neighbor Notifications, Engagement, Collaboration and Training (CONNECT) series, a new ETEC team member and invites the community to visit us at the street fair.March 13, 2026
In-person engagement and direct conversations with those invested in cleanup at the Santa Susana Field Laboratory were core concepts of the new series launched last month by the U.S. Department of Energy’s Energy Technology Engineering Center team. February 10, 2026February 10, 2026
Use everyday household items to create an air pollution catcher to see if you can observe what kind of particles might be in the air around you.December 16, 2025

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