No. Discharge of any materials or substances that is capable of causing an obstruction to the flow of the stormwater system or interfere with its proper operation or pollute the natural creeks or waterways is prohibited from being forced into the street. This would include any waste materials, liquids, vapor, fat, gasoline, benzene, naphtha, oil or petroleum products, mud, straw, lawn clippings, tree limbs or branches, metal or plastic objects, rags, garbage or any other such substance.