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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>
To minimize the total depth of the practice, d<sub>T</sub>, and save aggregate, consider installing void-producing structures (e.g. Permavoid, D-Raintank, low profile stormwater chamber, perforated pipes etc.), embedded in clear stone aggregate, in the storage reservoir instead of just aggregate, which will provide a greater effective porosity (n').
To minimize the total depth of the practice, d<sub>T</sub>, and save aggregate, consider installing void-forming structures (e.g. Permavoid, D-Raintank, low profile stormwater chamber, large diameter perforated pipes etc.) embedded in clear stone aggregate in the storage reservoir instead of aggregate alone, which will provide a greater effective porosity (n').
==Calculate the total depth of the practice, d<sub>T</sub>==
==Calculate the total depth of the practice, d<sub>T</sub>==