hazmat_018_db.jpg  Contra Costa County Hazardous Materials Responce Unit personnel and Walnut Creek bomb squad police investigate a garage at 2781 Ross Place in Walnut Creek.  Event on 4/12/05 in Walnut Creek.  Darryl Bush / The Chronicle MANDATORY CREDIT FOR PHOTOG AND SF CHRONICLE/ -MAGS OUT Photo: Darryl Bush
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