Site 300 is a high explosive testing range at the edge of Tracy. Livermore Lab conducts explosions, some inside a building and some in the open-air. 

The Environmental Protection Agency has placed Site 300 on its Superfund list of the most contaminated sites in America. 

The site’s open-air tests have released large volumes of hazardous material. These activities threaten our community. Our families in San Joaquin County are downwind. Livermore Lab’s parent agency, the National Nuclear Security Administration, will release to the public a new Site-Wide Environmental Impact Statement (SWEIS) in October. 

The release of the SWEIS will be followed by a public comment period and a public hearing. This is our opportunity to make sure that our families’ health becomes a priority – and that the pollution that has already escaped at Site 300 gets cleaned up. 

To help community members prepare for the public release of the SWEIS, Tri-Valley CAREs (Communities Against a Radioactive Environment) will host a virtual town hall at 7:30 p.m., Thursday, Sept. 29. 

The link will be available at and all interested members of the public are welcome. Tri-Valley CAREs bilingual outreach expert will provide translation and answer questions in Spanish. 

This is the time for community involvement. I hope you will join me. 

Gail Reiger,


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