Raul Ibarra, 45, was tentatively identified by his passport, wallet, cellphone and personal papers. That was confirmed by the Alameda County Coroner's Office.
"He appeared to be a transient because of the property that was with him and because of the clothing -- he had multiple layers on," said Pleasanton police Sgt. Kurt Schlehuber.
While the coroner's office hasn't released Ibarra's cause of death, Schlehuber said, "It appears at this point the death was accidental and not anything criminal."
His body was discovered at about 11:45 a.m. Feb. 26 by a city employee working at the transfer station, 3110 Busch Road.
Schlehuber said the Ibarra's body came in to the recycling area on a truck that was picking up commercial cardboard in Dublin.
"From the position of the body and the cardboard surrounding him, it was apparent he was in the back of the garbage truck," Schlehuber said. "What we suppose was that he was in the dumpster camping out and he got dumped into the truck. There was actually a picture of him on his cellphone in a Dumpster."
Schlehuber said it is unlikely that Ibarra was killed by the compacter in the truck.
"It doesn't compress all the way back. This was a light load, there wasn't that much to compact," he said. "There were some injuries but nothing that was so black and white that you could say he was crushed."