Placer County sheriff’s investigators seek to determine the origin of a suspicious substance that led to evacuation of Granite Bay law offices this morning.
Deputies responded at 10:51 a.m. to the law offices of Herrig & Vogt on Douglas Boulevard after an employee at the firm opened an envelope containing a white, powdery substance, according to a Sheriff’s Office news release. The office suite was evacuated, and the Roseville Fire Department’s hazardous materials team sampled the substance.
It was determined that the powder was calcium carbonate, a non-hazardous substance used as a binder in many everyday items, such as toothpaste, cleanser and cement, authorities said.
Employees were allowed back into the building after about two hours.
Premium content for only $0.99
For the most comprehensive local coverage, subscribe today.
Investigators took the envelope as evidence and will try to trace its origin, sheriff’s officials said.