Mysterious white powder found at Post Office



A mysterious white powder, which was later identified to be Sodium Bicarbonate, or Baking Soda, temporarily closed the Barrigada Post Office

Around 11 am, Guam Fire Department units were dispatched to the Barrigada Post Office after employees reported a white powdery substance on the floor.

The building was then evacuated and GFD’s Hazardous Materials Team and CST were dispatched to assist.

GFD says that testing was conducted on-site to identify the substance.

Local and military agencies were able to identify the substance, which was sodium bicarbonate or baking soda.

An All-clear sign was given at 1:45.

The Guam Fire Department would like to remind the community to always notify the proper authorities when encountering a suspicious substance that may be dangerous or harmful.

Contact Jannette Samson | E-mail: | Phone: 671-689-2842

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Jannette Samson is a broadcast reporter for the Pacific News Center. Her beats are lifestyle, tourism, and crime, among others. Aside from being a reporter, she is also PNC's social media and web editor. You can sometimes hear her reporting the latest headlines for you on Sorensen Media Group's radio stations and on K57. Some of Jannette's passions include art, beauty, and blogging. She paints, creates prints, and dabbles in various art media in her free time. Jannette is also a self-taught makeup artist. In addition to that, she is a visual artist. Her artwork was featured in many art exhibitions and galleries in Guam such as Imbentibu Famalao'an I at the Castro Art Gallery; Imbentibu Famalao'an II and Body Beautiful at the Lees-Reyes Art Gallery; the 2020 University of Guam Undergraduate Exhibition; and the Annual Research Conference Art Exhibition at the Isla Center for the Arts.