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→Calculate the total depth of the practice, dT
* Step 8: Adjust component depths to maintain a separation of 1.0 metre between base of the practice and seasonally high water table or top of bedrock elevation, or a lesser or greater value based on groundwater mounding analysis. See below and [[Groundwater]] for more information.<br>
* Step 8: Adjust component depths to maintain a separation of 1.0 metre between base of the practice and seasonally high water table or top of bedrock elevation, or a lesser or greater value based on groundwater mounding analysis. See below and [[Groundwater]] for more information.<br>
For practices without an underdrain in locations constrained in the vertical dimension, consider decreasing filter media depth (and plant types) and/or catchment area.<br>
For practices without an underdrain in locations constrained in the vertical dimension, consider decreasing filter media depth (and plant types) and/or catchment area.<br>
For practices with an underdrain in locations constrained in the vertical dimension, consider decreasing filter media depth (and plant types), ponding depth and/or catchment area.
For practices with an underdrain in locations constrained in the vertical dimension, consider installing perforated pipe on the bottom of the storage reservoir and including a riser (saves the depth of aggregate needed to embed the pipe), and/or decreasing filter media depth (and plant types), ponding depth and/or catchment area.
==Determine the required surface area of the practice==
==Determine the required surface area of the practice==