October 15, 2026
Dear SRJC Community, 

I wanted to follow up and clarify the chemical incident that occurred on Tuesday, October 13, 2026. 

Two chemicals, ammonium chloride and potassium chlorate, were inadvertently mixed in preparation for a chemistry class demonstration in SRJC’s Lindley Center for STEM Education on the Santa Rosa campus. The intended demonstration called for barium hydroxide and ammonium chloride, a common combination used to demonstrate an endothermic reaction. This mixture prompted SRJC's Hazardous Materials Specialist to contact SRJC District Police, who contacted the Sonoma County Sheriff’s Office Bomb Unit to assist with the safe removal and neutralization of the mixed chemicals.   

Out of an abundance of caution and at the recommendation of the Sheriff’s Office, the building was evacuated as a precaution while the materials were removed to provide a safe path of travel.  There was never a risk to the building or any individuals during this incident. The Sheriff’s Office used a robot to move the chemicals to a safe location outside for neutralization.  The chemicals themselves did not cause an explosion. The Sheriff's Office determined a safe and effective way to resolve the chemical solution, which created a loud bang.  

The process and response were timely and appropriate, informed by experts, with a focus on the health and safety of our community at the center of every decision.  

I appreciate the response of our teams and collaboration with the Sheriff's Office. 

In community,    

Dr. Angélica Garcia, Ed.D.
Superintendent/President
707-527-4431, angelicagarcia@santarosa.edu