Translations:Versickerung und Retention/27/en

Construction of an infiltration system

1. Distance to MHGW (mean highest groundwater level) from the bottom of the system: > 1 m
2. Soil permeability > 1 x 10^-6 (with lower values see retention)
3. Soil permeability < 1 x 10^-3 (with higher permeability too little treatment)