A chemical spill forced employees to evacuate a business in York County, Pennsylvania, fire officials said. Wrightsville Volunteer Fire Department got the call to Guardian CSC on Susquehanna Drive in Hellam Township, PA, October 15 at 9:20 a.m. for a HazMat incident. Fire officials said it was a chemical spill involving bleach. A vapor cloud inside the building, caused by the spill, set off the fire alarm.