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Latest revision as of 16:21, 4 August 2022

Settling chamber surface area for sand filters and perimeter sand filters.
Link to this table

Sand Filter
Maximum Ponding Depth (feet)
< 4
4 to 10
Impervious ≥ 75% (0.25 Vwq) / Dmax (0.25 Vwq) / Dmax
< 75% (0.25 Vwq) / Dmax 0.066 Vwq
Perimeter Sand Filter Maximum Ponding Depth (feet)
<7.5 8 to 10
Impervious ≥ 75% (0.5 Vwq) / Dmax (0.5 Vwq) / Dmax
< 75% (0.25 Vwq) / Dmax 0.066 Vwq

This page was last edited on 4 August 2022, at 16:21.