Contra Costa County election 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.
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 the City Council seat in Pleasant Hill between Planning Commissioners Tim Flaherty and Jim Bonato. Flaherty has 49 more votes than Bonano as of the close of precinct counts on Tuesday, but the race can't be officially called until all the votes are counted.
It's not known how many uncounted ballots are from Pleasant Hill.
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.