Settling chamber surface area Revision as of 17:40, 14 February 2013 by PLeegar (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Settling chamber surface area

This table shows settling chamber surface area.
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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