A southern New Jersey school reopens Monday, four months after it was closed because of mold.

More than 300 students will return to the Cecil S. Collins School in Barnegat Township.

The building never opened for the school year in September after tests showed mold concentration levels exceeded healthy levels.

The Press of Atlantic City reports the school is free of mold following a cleanup that’s expected to cost at least $300,000.

(Copyright 2012 by The Associated Press. All Rights Reserved.)