Settling chamber surface area Revision as of 19:40, 18 March 2013 by Mtrojan (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Settling chamber surface area

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