Sustainable Drainage Systems (SuDS) tools

Our tools help to estimate

• pre-development greenfield site runoff rates
• storage volumes required to meet site flow rate controls
• suitability of different SuDS for treating site runoff
• infiltration storage volumes

• Greenfield runoff rate estimation tool
  To estimate runoff rates based on basic site characteristics information.
• Surface water storage volume estimation
  For greenfield flow rate estimates as well as surface water storage attenuation volumes.
• Infiltration volume estimation 
  To calculates the depth of storage required and the drain-down time to half empty for soakaways based on information on their plan area dimensions, fill porosity and infiltration rate.