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Clear water waste disposal to sanitary

Disposal of wastewater into Calgary's wastewater system including a manhole or monitoring access point is prohibited without prior approval from the Director of Water Resources or Water Services

If you are disposing of water from sources other than wastewater streams, including the following:

  • Roof and foundation
  • Remediated groundwater
  • Accumulated storm drainage or groundwater
  • Non-contact cooling water
  • A disposal as directed by Alberta Environment

Use the Nuisance Water Disposal Flowchart to determine if you require disposal into the sanitary sewer.

If your project qualifies you for sanitary sewer disposal, first determine if it is foundation drainage connected to The City's wastewater system before 1973.

All wastewater must comply with substances listed in Schedules A, B, and C of the Wastewater Bylaw 14M2012.

Application checklist:

  • Have you completed the application form in full? Clear Water Waste Disposal Permit Application.
  • Have you included the justification to dispose to sanitary using the Nuisance Water Disposal Flowchart
  • Have you included a description of the project?
  • Have you included a description of the pre-treatment system?
  • If you wish to discharge at a rate greater than 150L/min, have you included the proposed rate?
  • Have you included water quality results? (Water quality results must be reported using the Analytical Results Reporting Form.)
  • If water quality results cannot be obtained at this time, have you included justification as to why they are being deferred, and when they will be available?

Please contact 311 if you have further questions/concerns. Let the operator know you are looking for information regarding the Industrial Monitoring Group's Clear Water Waste Disposal Program.