About 400 Coquitlam school teachers are expected to get layoff notices sometime this month because of a $12.5 million budget shortfall, but it is not yet clear how many will actually be laid off.

All teachers in the district with less than six years' seniority are expected to get the notices according to Coquitlam Teachers' Association president Theresa Grandinetti.

In January, the district said it was facing a $7.5 million shortfall because officials over-estimated the number of students and international students it would have this past year.

Grandinetti blames bad bookkeeping and is calling for a forensic audit to investigate the board's massive shortfall, which is actually closer to $12.5 million.

"You don't make a $12 million mistake in one year. The sad part about this is that the teachers and CUPE as well had nothing at all to do with this fiasco at the board office and yet they're the ones and then ultimately the students that ultimately have to bear the brunt of it."

 For the last decade, all of the teachers in Coquitlam who have received layoff notices in the spring, have been hired back by September, but Grandinetti says this year some teachers will not return.