12. Written, technical evidence from a qualified engineer(s) acceptable to the fire
12. Written, technical evidence from a qualified engineer(s) acceptable to the fire chief and the building commissioner that the proposed site of the tower or telecommunications facilities does not pose a risk of explosion, fire, or other danger to life or property due to its proximity to volatile, flammable, explosive, or hazardous materials such as LP gas, propane, gasoline, natural gas, or corrosive or other dangerous chemicals.