Overview
- Roberts Road Elementary was evacuated Friday morning and students were initially transported to Waller High School before returning for normal dismissal.
- Harris County Emergency Services District 3 said crews ventilated the building and brought the incident under control with no hazards remaining.
- Officials identified the source of the odor as mercaptan, a foul‑smelling additive, linked to a nearby environmental company.
- Two students were taken to a hospital as a precaution for respiratory complaints and were later released, according to the district.
- Shelter-in-place precautions were taken at nearby campuses, and multiple agencies including Spring Creek Fire, Cy‑Fair Fire, CenterPoint and Harris County HazMat responded.