Type of water to be discharged
Sewerage of agglomerations - General principles and Effluents present

In addition to meteoric water collected directly on the surface concerned, rainwater likely to be received in a sewer system includes water which, due to topography or anthropological activities, transits through this surface, either as runoff over the land, or as it is brought there by other underground pipes.

Indeed, when we talk about stormwater and runoff management in the context of urban planning and sanitation, we are referring to a set of water flows originating from different sources.

• Meteoric water (rainwater)

  This refers to water falling directly in the form of atmospheric precipitation, such as rain, hail and snow, which can accumulate on roofs,...