There's an explosion planned at [a] test site in the Central Valley, and residents fear it could launch radioactive material into their air. Now there's a fight to stop those planned tests at Site 300, just outside of Tracy near the Lawrence Livermore Lab. The Lawrence Livermore Lab has been setting off 60 to 80 blasts a year; most have been small, but next year two larger 300-pound explosions are planned using depleted uranium. For Tracy shoe shop owner Bob Sarvey, that means the potential of a radioactive release. Sarvey showed CBS13 the risk assessment from the local government and says someone must be worried to have added a cancer risk footnote, and that's before any review of potential radioactivity.