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→Determine the required surface area of the storage reservoir
*d<sub>i</sub>' = Design infiltration water storage depth (m)
*d<sub>i</sub>' = Design infiltration water storage depth (m)
*n<sub>r</sub>' = Effective porosity of the storage reservoir fill material(s).<br>
*n<sub>r</sub>' = Effective porosity of the storage reservoir fill material(s).<br>
If the storage reservoir would need to be greater than 0.6 metres deep if filled with clear stone aggregate with porosity (n) of 0.4, consider installing a void-producing structure embedded in clear stone aggregate instead, which will provide a greater effective porosity (n'), allow for a shallower storage reservoir depth, and saves aggregate.
If the storage reservoir would need to be greater than 0.6 metres deep if filled with clear stone aggregate with porosity (n) of 0.4, consider installing a void-producing structure embedded in clear stone aggregate instead, which will provide a greater effective porosity (n'), allow for a shallower storage reservoir depth, and save aggregate.
==Calculate the total depth of the practice, d<sub>T</sub>==
==Calculate the total depth of the practice, d<sub>T</sub>==