A bus driver caught urinating in the parking lot of H.E. McCracken Middle School was arrested for indecent exposure at about 1:15 p.m. Friday.
A school staff member spotted the woman squatting behind a bus and called police to investigate.
The investigation concluded that the bus driver "pulled her pants down, squatted down exposing her buttocks and urinated on the ground," a press release from the Bluffton Police Department said.
According to the report, no children were in the area at the time.
The suspect is being held in the Beaufort County Detention Center awaiting a bond hearing.