The user shall provide adequate containment, including secondary containment where necessary, of all persistent deleterious waste products. The user shall be responsible for protecting the city sewer inlets from intentional or unintentional discharges of nonapproved incompatible wastes. All points of entry to the sanitary sewer are subject to review and approval by the city.

Potential points of entry of incompatible pollutants must be clearly labeled to warn against accidental discharge. Every permitted user shall submit with the semiannual compliance monitoring report a statement to the city declaring whether there have or have not been discharges in violation of these regulations during the previous six months. If there have been discharges in violation, an explanation of the circumstances and corrective action taken is required for each incident. (Ord. 2282 NCS §3 (part), 2007.)