A. No contractor or other person shall wash, sweep, brush or place any paint, paint thinner, cement, cement residue, sand or sand and gravel onto the public streets, roadways or gutters, or into the storm drainage system.

B. All such materials shall be disposed of in such a manner that they will not enter the storm drainage system. (Ord. 177 NS § 1, 1972; prior code § 19-7.)