A.
The agency may require that any person discharging or proposing to discharge wastewater into a community sewer file a periodic discharge report. The discharge report may include but not be limited to the nature of the process, volume, rates of flow, mass emission rate or other information which relates to the generation of waste, including wastewater discharge. Such reports may also include the chemical constituents and quantity of liquid or gaseous materials stored on site, even though they are not normally discharged. In addition to the discharge reports, the agency may require information in the form of wastewater discharge permit applications and self-monitoring reports.
B.
Discharge of hazardous waste notification requirements. An industrial user shall notify the Administrator, the EPA Regional Waste Management Division Director and the State Hazardous Waste Authorities in writing of any discharge into the community sewer of a substance which, if otherwise disposed of, would be a hazardous waste under the Resource Conservation and Recovery Act (40 CFR Part 261). Such notification should include the name of the hazardous waste as set forth in the aforementioned regulation, the EPA hazardous waste number and the type of discharge (continuous, batch or other). If the IU discharges more than 100 kilograms per calendar month to the treatment plant, the notification shall also contain the following information to the extent such information is known and readily available to the user: an identification of the hazardous constituents in the waste, an estimation of the mass and concentration in the waste stream expected to be discharged during the calendar month and an estimation of the mass of constituents expected to be discharged during the following twelve months. All notifications must take place within 180 days after the discharge of the listed or characteristic waste. Any notification under this subsection need be submitted only once for each hazardous waste discharged. If notification of hazardous waste discharge is made under this subsection, the user shall certify that it has a program in place to reduce the volume and toxicity of hazardous wastes generated to the degree it has determined to be economically practical.