On Friday, July 5, fire officials from the City of Waukesha released details related to two fireworks-related incidents that occurred on the Fourth of July. Three fireworks contractors were injured during the first incident, and a residential garage started on fire during the second incident.
Around 9:55 p.m., the Waukesha Fire Department was standing by at the City of Waukesha fireworks show at the Waukesha County Fairgrounds. Midway through the show, before the finale, a shell unintentionally detonated on the ground in its launching vessel. This detonation caused several other surrounding shells to detonate.
A total of three individuals were injured by the unintentional detonation. All people that were injured were employees of Speilbauer Fireworks Inc., who the City of Waukesha contracted for the show. The three injured employees received minor injures, and all were treated on scene by the fire department.