The sizing of Bioretention is based on the Sustainable Technologies Evaluation Program (STEP) recommendations.

Default parameters from VO are used except the followings:

  • Surface Ponding Layer: Depth – Area Curve:
  • Mulch Layer: Depth is 0.075 m.
  • Engineering Soil Layer: Width is 20 m and Length is 100 m.
  • Native Soil: Soil Texture is Sandy Loam, Infiltration rate is 0.0114 m/hr.

The final look of the Properties tab:

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