MIDS Calculator stormwater pond design level criteria related to pond volume MIDS Calculator stormwater pond design level criteria related to pond volume

MIDS Calculator stormwater pond design level criteria related to pond volume
Link to this table

MIDS Stormwater Pond Design Level1	Permanent Pool Volume (Vpp), ft3	Water Quality Volume (Vwq), ft3	Pollutant reduction (%)2
			TSS	TP	PP	DP
Design Level 1	≥ 1,800 ft3 per acre of tributary area	<= 1 inch from impervious area	60	34	62	0
Design Level 2		<= 1 inch from impervious area	84	50	84	8
Design Level 3		<= 1.5 inch from impervious area	90	60	90	23

¹From MIDS Calculator documentation for stormwater ponds. Note: the table summarizes design-level criteria related to permanent pool volume and water quality volume. The complete list of criteria for each design level is summarized on the MIDS calculator website linked above.
² TSS = total suspended solids; TP = total phosphorus; PP = particulate phosphorus; and DP = dissolved phosphorus. Pollutant reduction values cited assume no upstream treatment within tributary area to pond (i.e., untreated urban runoff).