Any person who shall intentionally destroy or damage any facility which is used to furnish oil, telegraph, telephone, electric, gas, sewer, wastewater or water service to the public, shall be guilty of a Class 4 felony, provided that in the event that the destruction or damage may be remedied or repaired for less than $1,000 such act shall constitute a Class 3 misdemeanor. On electric generating property marked with no trespassing signs, the security personnel of a utility may detain a trespasser for a period not to exceed one hour pending arrival of a law-enforcement officer. Notwithstanding any other provisions of this title, any person who shall intentionally destroy or damage, or attempt to destroy or damage, any such facility, equipment or material connected therewith, the destruction or damage of which might, in any manner, threaten the release of radioactive materials or ionizing radiation beyond the areas in which they are normally used or contained, shall be guilty of a Class 4 felony, provided that in the event the destruction or damage results in the death of another due to exposure to radioactive materials or ionizing radiation, such person shall be guilty of a Class 2 felony; provided further, that in the event the destruction or damage results in injury to another, such person shall be guilty of a Class 3 felony.