The 23-year-old former star of "The Hills" was charged Monday with misdemeanor driving under the influence and having a blood-alcohol level over the limit of .08 percent.
It could not be immediately determined if Wahler had a lawyer or spokesperson.
District attorney's spokeswoman Farrah Emami says Wahler could face up to six months in jail and a $1,000 fine if convicted.
Emami says Wahler had a blood alcohol level of .19 percent when he was stopped by Newport Beach police on March 19 after officers saw him make an abrupt turn and stop in a traffic lane.
Wahler told US Magazine he's ashamed of the latest arrest and has resumed attending Alcoholics Anonymous meetings.
