Posted: Saturday, August 21, 2010 --- 3:11 p.m.

GILLETT, Wis. (AP) -- An elementary school in eastern Wisconsin will have its start date pushed back after mold was found throughout the building.

School was scheduled to start Sept. 1 for the Gillett School District in Oconto County. But mold has taken hold in nearly every room.

The district says it was apparently caused by the humid summer. It's mainly on the carpeting and isn't believed to be airborne.

It was discovered last week just before summer school ended. There haven't been any reports of illnesses.

Secondary school principal Jeremy Pach tells WLUK-TV the district is working with the Department of Public Instruction to determine a start date.

The adjacent middle and high schools weren't affected. They'll start on time.

The elementary school has 300 students.