Though the overall result stands, the numbers in the library override election changed after a hand recount Monday night because the human counters interpreted some ballots differently than the machines, Town Clerk Ron Fucile said.
Also, nine additional ballots were included in the recount.
The $6.2 million Proposition 2 1/2 debt exclusion to partially finance construction of the library passed 2,775-2,767.
Before the recount, the debt exclusion passed 2,774-2,764.
Planned for the corner of Stone and School streets, the new library will cost $11.2 million, with a $4 million state grant and $1 million worth of private donations in addition to the money paid by taxpayers through the debt exclusion to pay off a 20-year bond.
Fucile said the recount confirmed the effectiveness of the 11-year-old voting machines.
"The accuracy is very, very high," he said. "It's a very, very reliable machine."
The reason the vote was different, Fucile said, was because human counters were responsible for determining the "intent of the voter" - so some changes would be made based on ballots that were not marked clearly.
Town Counsel Lauren Goldberg, who coordinated the recount, told workers to make a judgment based upon "reasonable certainty" of the will of the voter.
Fucile said he would investigate the nine uncounted ballots, which were likely write-in ballots that were supposed to be counted but were not.
"It's not something, certainly, that was Earth-shattering," the town clerk said, especially since the missing ballots were found in time for the recount.
Five tables were set up at the senior center at Town Hall with two workers at each one. One read the vote, and one marked down the vote.
The teams worked with bundles of 50 ballots, doing one precinct at a time.
There were also four observers at each table who were allowed to object to the judgment made by the vote counters.
"The process worked," said Paul Cesary, chairman of the library trustees, following the announcement of the results. "The democratic process worked."
The eight-vote library victory was called shortly after 11 p.m. on Monday. The recount of the 5,735 ballots had begun just before 7 p.m. Cesary said the ordeal took longer than expected, but noted, "that's the price of democracy."
Library opponent Susan Maguire, a Precinct 1 Town Meeting member and signer of a petition to force a recount, agreed.