Any person who discharges any pollutant into the air of the YIR shall be liable for all costs associated with, or necessary to clean up, abate, and/or mitigate effects to the air of the YIR; and restore the quality of the air of the YIR to the condition of the air as it existed immediately prior to the discharge. [Ord. 12 § 6.9, adopted, 4/7/2005.]