Students at Windsor Middle School who were removed from their science classroom due to potential mold issues, will be able to return, after an air quality test came back in the normal range. The Greeley Tribune reports those students have been in a modular classroom since the issue surfaced. An investigation determined the surface mold in the areas of concern came from an active water leak, not from issues in the classroom greenhouse. In addition to fixing the water leak, a restoration company will mitigate and clean the damage caused by the leak. Officials anticipate students can return to their original classroom in the coming month once repairs and mitigation are completed.