It appears Contra Costa County officials will have to sift through more than 100,000 uncounted ballots before they can certify Tuesday's election.
County Clerk Steve Weir reported late Thursday that his election office had received 82,271 vote-by-mail ballots since Saturday afternoon as well as 23,692 provisional ballots. That's 105,963 ballots that were not counted as of Tuesday night.
Weir said there were more vote-by-mail ballots turned in at the polls than they expected. This is also the highest total ever for provisional ballots in Contra Costa County.
The ballots may not all be counted until the middle of next week.
That could leave several elections in doubt until then.
One of them is Measure D, the $260 million school bond in the San Ramon Valley. Right now, the measure has 55.19 percent of the vote with 55 percent needed for passage.
It's not known how many uncounted ballots are from Alamo, Danville and San Ramon.
The voter turnout right now for Contra Costa County is 60 percent. The late ballots are expected to raise that to 80 percent.
The county has until Dec. 4 under state law to certify the election.