Overview

• Yolo County Coroner’s Division teams accessed the Devastating Pyrotechnics warehouse on July 4–5 and recovered the remains of the seven workers missing since the July 1 explosion.
• CAL FIRE arson and bomb investigators are leading a search for causes, managing lingering hotspots and undetonated fireworks at the Esparto site.
• Local officials have maintained a controlled one-mile perimeter, conducting gradual recovery operations to prevent accidental detonation of remaining pyrotechnics.
• County reviews found the rural warehouse lacked required conditional use permits, signage and zoning clearance for fireworks storage, revealing regulatory failures.
• This week’s blasts—including deadly residential explosions in Simi Valley, Hayward and Pacoima—have killed four people, critically injured others and prompted renewed warnings against private fireworks use across California.