The determination was made at about 11:30 p.m., and suspended train service was cleared to be resumed, spokeswoman Brandi Childress said. As VTA service was over for the night, trains were expected to resume regular service this morning.
The package was reported at the station at about 7:15 p.m., Childress said. The Santa Clara County Sheriff's Office responded to the station and made the determination that the package was safe.
A bus bridge was set up to take passengers between the Mountain View and Whisman stations.
Caltrain service through the area, stalled by the suspicious package, was also cleared to resume regular service this morning, spokeswoman Christine Dunn said.
Earlier Monday, a bomb threat halted Caltrain service between San Francisco and Millbrae for several hours.
The bomb threat was made at about 2:45 p.m. by a person who called Caltrain and claimed there was a bomb on one of the southbound trains leaving San Francisco, Dunn said.
Trains at the San Francisco terminal were inspected and cleared, and transit police closed the South San Francisco station as they inspected train No. 158, according to Dunn.
All 150 passengers and crew onboard that train were evacuated and transported by bus to their final destinations. The train was then found to be safe and departed at about 5:20 p.m., Dunn said.