Whoever violates this Act or any of the rules and regulations adopted pursuant to the provisions of this Act is guilty of a petty offense, and upon conviction thereof shall be punishable by a fine of not less than $100 nor more than $500 for the first offense and not less than $500 nor more than $1,000 for a second or subsequent offense. Each day of violation of this Act or the rules and regulations adopted pursuant to it shall constitute a separate offense.
430 ILCS 5/4