Staffers from the nonprofit environmental group Heal the Bay are attempting to contact Encino resident Kristine Bradley and return her wallet.
Among the 44,000 pounds of trash collected as part of the 27th annual California Coastal Cleanup on Saturday, a water-damaged but fully intact wallet was picked up off the sea floor by scuba divers scouring the ocean floor near the Santa Monica Pier.
The black billfold apparently belonged to an Encino resident named Kristine Bradley. The wallet held six dollars in cash and contained some credit cards and a driver's license with 2004 expiration dates, according to City News Service.
California Coastal Cleanup Day is considered to be the state's biggest annual volunteer event. About 11,000 volunteers combed beaches, streams and storm channels in more than 60 locations in Los Angeles County as part of the cleanup event.
City News Service contributed to this report.