Livingston Parish voters rejected a renewal of the parish’s health unit tax Tuesday, with more than 56 percent voting against the proposal, according to complete but unofficial returns posted by the Secretary of State’s Office.

With all 78 precincts reporting, 21,010 voters rejected the call to renew the 10-year, 5-mill tax that supports the health unit, while 15,953 voted for the measure.

The proposition appeared doomed before the first results rolled in, though, after Parish Council Chairman Ricky Goff on Thursday called for a nullification of the vote results because of a multimillion-dollar error in the proposition’s wording.

The language voters saw on the ballot Tuesday indicated the tax would generate an estimated $763,000 each year of its lifespan, but the Assessor’s Office said Wednesday the tax actually would generate three times that amount — about $2.3 million annually.

Goff said Thursday he will ask his fellow council members to set aside the vote and send the issue back up to voters next year because of the discrepancy.

Follow Heidi R. Kinchen on Twitter @HeidiRKinchen.