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    • Greenfield runoff rate estimation
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    Here are our tools for the design and evaluation of SuDS

    • Tools
    • Greenfield runoff rate estimation
    • Surface water storage volume estimation
    • Infiltration volume estimation
    • SuDS performance evaluation tool
    • Water quality assessment for SuDS developments (SuDS manual)
    • Water quality assessment for SuDS developments (WaND)
  • Training & support

    We provide SuDS training courses and support for drainage consultants and local planning authorities.

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What is Long Term Storage?

  • Read more about What is Long Term Storage?

What is the FEH statistical method?

  • Read more about What is the FEH statistical method?

How can Interception storage be provided when infiltration rates are low or non-existent?

  • Read more about How can Interception storage be provided when infiltration rates are low or non-existent?

How can rainwater harvesting (RWH) be used for surface water management?

  • Read more about How can rainwater harvesting (RWH) be used for surface water management?

How is Interception depth calculated?

  • Read more about How is Interception depth calculated?

What is Interception?

  • Read more about What is Interception?

When can infiltration be used?

  • Read more about When can infiltration be used?

Why is a 1m separation depth required for infiltration design?

  • Read more about Why is a 1m separation depth required for infiltration design?

What is the ReFH 2 tool?

  • Read more about What is the ReFH 2 tool?

How valid are the greenfield equations for use at site development scale?

  • Read more about How valid are the greenfield equations for use at site development scale?

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