Translations:Versickerung und Retention/113/en

This resulting larger volume is relevant for the calculations for flood verification and the inlet limitation. The relevant size of the retention space is calculated from Equation 18 as 48.9 m³. With this based on the flood verification, the required retention volume is increased by 7.1 m³ (17%). At the latest when the flood volume cannot be represented on the surface then the underground storage volumes must be constructed larger.