Construction at the future home of the license bureau/title office continues to be delayed after human remains were unearthed at the site Aug. 8.
Workers were excavating at the Shady Lane Drive job site that day when femur and rib bones, along with a skull were discovered.
Huron County Sheriff Dane Howard responded to the scene and sectioned off the area, sending workers home.
County officials have been considering options since the discovery.
The new license bureau/title office is a $1.1 million project.
Officials had originally hoped to have the facility open by November, but with recent delays due to the weather and the discovery of bones, a new opening date has not been established.
Local historian Henry Timman has said that area was used as a cemetery from 1848 to 1917.
County officials said they had attempted to place the new facility far enough away from what they thought could potentially be a burial ground, but the discovery of bones has left the actual cemetery boundary lines in question.
Local architect Dan Frederick is overseeing the project. He updated the county commissioners via email recently.
"The architect said he has a company coming in, and this is technology we never knew existed, that can use sonar in the ground to figure out the true boundaries of the cemetery," Dunlap said. "I believe they'll be doing that in the next couple days."
Dunlap was asked what the cost would be for this sonar procedure.
"My attitude is, that's the architect's problem," he said. "He's the professional. I mean no disrespect and I like Dan, but that's his job."
Dunlap said work will remain delayed at the site until at least the commissioners receive the results of the sonar.
"Maybe this will help us get some of these issues cleaned up," he said.