Authorities have made progress in the investigation surrounding a woman's body found inside a trash can in an upscale Pleasanton neighborhood, but have yet to identify the woman, police said.

"Fingerprints and facial recognition technologies were inconclusive," Lt. Jeff Bretzing said. "We are working with forensic dentists to find a match through moldings of her teeth."

It is unknown how long it will take to gather results from dental testing, Bretzing said.

According to Bretzing, while the forensic pathologist concluded that the woman was between ages 18 and 40, it is likely that her age can be narrowed to her 20s.

About 11:30 a.m. on May 24, police responded to a report of a trash can in some shrubbery on Dublin Canyon Road near Laurel Creek Drive. The container was found in the foliage adjacent to the roadway on the north side of the 11000 block of Dublin Canyon Road. The area is an upscale development called The Preserve and not far from Interstate 580.

"Someone called this in because (having a trash can in that spot) wasn't normal, and it shouldn't have been in that location," Bretzing said at the time. "When officers arrived, they opened it up and found what looked like human remains."

The can did not resemble other garbage service cans in the neighborhood.

Bretzing didn't know how long the trash can had been on the street, but one woman said she thought she first saw it there a few days prior.

Anyone

Contact Erin Ivie at 925-847-2122. Follow her at Twitter.com/erin_ivie.