The workers were searching the small rectangles that voters punch in marking the ballots.
That would include all 10,361 ballots that were not counted because the voters did not punch any hole at all for presidential candidates.
In a key punch system, the voter punches a hole in the ballot next to the candidate's name.
He and various experts will lay out options, and voters will punch in their choices.
There is no way of knowing how many voters are simply punching the wrong holes and mailing their ballots.
County officials found that all ballots in which voters punched a straight party ticket had gone uncounted.
Many voters punched yes for both sides.
The canvassing board took careful note of the "double votes" when voters punched their ballots for two or more presidential candidates.
Under Brazilian electoral procedures, political parties are assigned a two-digit code that voters punch into polling machines instead of a candidate's name.
Palm Beach threw out 4.1 percent of its ballots because voters punched holes beside the name of more than one candidate.