(a) Illegal waste disposal. A person commits an offense if:
(1) from a vehicle, portable tank, or other container used for transporting water, normal domestic wastewater, or industrial waste, the person discharges or causes the discharge of water, normal domestic wastewater, or industrial waste into the wastewater system or a private sewer facility directly or indirectly connected to the wastewater system;
(2) by any means, the person discharges or causes the discharge of water, normal domestic wastewater, or industrial waste into a part of the wastewater system generally used for maintenance or monitoring, including but not limited to manholes, cleanouts, or sampling chambers; or
(3) by means of a mechanical device or extraneous water, the person forces normal domestic wastewater or industrial waste collected in a grease trap/interceptor, sand trap/interceptor, or other waste collection device into the wastewater system or a private sewer facility directly or indirectly connected to the wastewater system.
(b) Defense. It is a defense to prosecution under Subsection (a) if the discharge of water, normal domestic wastewater, or industrial waste into the wastewater system, or into a private sewer facility directly or indirectly connected to the wastewater system, is from a motor vehicle:
(1) that is specially designed and adapted to treat water, normal domestic wastewater, or industrial waste to concentrations meeting the requirements of this article prior to discharge into the wastewater system; and
(2) the operator of which has written permission from the director to operate the vehicle within the city. (Ord. Nos. 19201; 26925; 28084)