Mold will delay school opening in Lodi, Calif.

Toxic mold growing in every classroom building at Tokay High School in Lodi, Calif., has forced the start of school to be delayed for several weeks and may cost millions to clean up. Lodi Unified School District officials expect that removing the mold will add millions of dollars to a planned $8-million modernization project that had just begun. Officials believe that a flaw in the buildings' design allowed moisture to leak into the walls.

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