Metropolitan St. Louis Sewer District

Sewer Discharge Requirements

Hazardous Waste Notices

  1. The Industrial User shall notify MSD, the EPA Regional Waste Management Division Director, and State hazardous waste authorities in writing of any discharge of a substance, which, if otherwise disposed of, would be a hazardous waste. Such notification must include the name of the hazardous waste, the EPA hazardous waste number, and the type of discharge (continuous, batch, or other). If the Industrial User discharges more than 100 kilograms of such waste per calendar month , the notification shall also contain the following information to the extent such information is known and readily available to the Industrial User: An identification of the hazardous constituents contained in the wastes, an estimation of the mass and concentration of such constituents in the wastestream discharged during that calendar month, and an estimation of the mass of constituents in the wastestream expected to be discharged during the following twelve months. All notifications must take place within 180 days of the effective date of this rule. Industrial users who commence discharging after the effective date of this rule shall provide the notification no later than 180 days after the discharge of the listed or characteristic hazardous waste. Any notification under this paragraph need be submitted only once for each hazardous waste discharged. However, notifications of changed discharges must be submitted The notification requirement in this section does not apply to pollutants already reported under self-monitoring requirements.
     
  2. Dischargers are exempt from the requirements of this section during a calendar month in which they discharge no more than fifteen kilograms of hazardous wastes, unless the wastes are acute hazardous wastes as specified. Discharge of more than fifteen kilograms of non-acute hazardous wastes in a calendar month, or of any quantity of acute hazardous wastes as specified requires a one-time notification.
     
    Subsequent months during which the Industrial User discharges more than such quantities of any hazardous waste do not require additional notification.
     

  3. In the case of any new regulations identifying additional characteristics of hazardous waste or listing any additional substance as a hazardous waste, the Industrial User must notify MSD, the EPA Regional Waste Management Waste Division Director, and State hazardous waste authorities of the discharge of such substance within 90 days of the effective date of such regulations.
     

  4. In the case of any notification made, the Industrial 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.