Spill Reporting Requirements & Procedures
Metropolitan Council Environmental Services (MCES) has been granted the authority to enforce its "Waste Discharge Rules" and the EPA pretreatment regulations in the Metropolitan Area.
The following spill reporting requirements apply to spills that have entered any sanitary sewer serviced by the Metropolitan Disposal System (MDS).
For additional information, please contact Tim Rothstein at 651.602.4724 or 651.602.4700.
This is a 24-hour one-call system for all state reporting requirements, established by the Minnesota Department of Public Safety, Emergency Management Unit. The Duty Officer records all pertinent information and then makes the appropriate notifications to other state and local agencies, including MCES.
Industries holding an MCES Industrial Discharge Permit are required to post this Spill Reporting Poster in an area visible to employees.
For more information about Spill Reporting Requirements, check out the Minnesota Pollution Control Agency (MPCA) Emergency Response Facts.
Who should make the call
Any person that has knowledge of a spill to the public sewers shall immediately notify the Minnesota Duty Officer.
Any person responsible for a spill or release to the public sanitary sewers, shall take immediate action as is reasonably possible to stop the discharge. The responsible person shall perform any control and cleanup actions necessary to prevent additional accidental or prohibited discharge into the public sanitary sewers
When to call - spills of concern
Call if any of the following are spilled into the public sewer system:
- Toxic, flammable, corrosive, and otherwise dangerous industrial chemicals.
- Slug discharges of milk, sugar and other food products, since they can significantly impact or damage the operation of MCES’s biological wastewater treatment plants.
- Any slug or batch discharge of wastewater in such volume or strength that is likely to cause interference, pass-through or operational problems in the sewer system.
A "slug" discharge is any waste discharge in concentration or quantity of flow exceeding four times the average concentration or flow rate of a normal operating day.
Note – The Minnesota Pollution Control Agency has a 5-gallon minimum quantity for reporting petroleum spills. However, less than five gallons of a flammable material in the sewer system could cause a significant explosion hazard and should be reported. If in doubt, report the spill.
When and what to report to MCES
A written report that describes the spill shall be submitted to MCES by the responsible person within five calendar days after occurrence of the discharge. The report shall include the following information:
- Time, duration and location of the discharge
- Description and quantity of the material or waste discharged including constituents and concentrations
- Cause of the accidental or prohibited slug discharge
- Actions taken to abate and clean up the accidental or prohibited slug discharge
- A schedule of corrective measures to prevent further occurrences
This MCES Spill Report Form should be used to complete the required written report.