Aberdeen residents turned in their petition to put the 523-acre Wetlands Golf Course annexation to a popular vote Thursday, boasting they had gathered twice the required signatures.

If the Harford County Board of Elections finds that at least 1,500 of the signatures are valid ­? 20 percent of registered voters ? the annexation, which would open the way to an estimated 1,000 new houses, condos and townhomes, will be put on the ballot.