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Skip Navigation LinksEPCOR / About EPCOR / Who We Are and What We Do / About Our Company / Where We Operate / Edmonton, AB / Drainage

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Our responsibility for sewer servicing begins where your property ends. Your household plumbing is only the start of a massive sewer network.

This sewer network consist of 3 systems:

  • Combined Sewer - A system of sewers designed to collect and convey wastewater AND runoff from urban areas to the receiving stream or to a treatment plant if one is available.

  • Storm Sewer - A system of sewers designed to collect, store and convey runoff from urban areas to a receiving waterbody.

  • Sanitary Sewer - A system of sewers designed to collect and convey household and industrial wastewater from urban areas to a wastewater treatment plant (Gold Bar Wastewater Treatment Plant).

The following diagram illustrates the examples of these systems:

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