Measuring rainwater retention spaces based on DWA-A 117 .
Performing cost-comparison calculations between infiltration and traditional drainage systems. Current Status and Downloads atv-a138.xls download
Designing decentralized and centralized infiltration systems according to DWA-A 138 . Measuring rainwater retention spaces based on DWA-A 117
Designing swales (Mulden), trenches (Rigolen), pipe infiltration systems, and seepage shafts. pipe infiltration systems
Assessing rainwater treatment needs under DWA-M 153 .
Originally developed by the itwh GmbH , this tool automates complex hydraulic calculations based on the German technical standard (formerly ATV-A 138). What is ATV-A138.XLS?
The file is a specialized Microsoft Excel-based calculation tool used by civil engineers, urban planners, and environmental consultants for the dimensioning of rainwater infiltration systems .