Only nonflammable or high flashpoint (100 degrees Fahrenheit or greater) solvents shall be used during any cleaning process, including cleaning aircraft parts. The disposal of gasoline, oil, solvent, or other flammable waste products into any drain, manhole, open ditch, or other airport area not designated for such purpose shall be strictly prohibited. Drip and collecting pans shall be used during any cleaning process and shall be emptied daily. (§ 1, Ord. 773, eff. April 14, 1977)