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Response to oustanding issues Animal Husbandry MCU12/0184
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Callaghan & Toth
APPENDIX 8 SEDIMENT BASIN CALCULATION
V=10 x Cv x A X Rx-day. y-%ile
Where:
10 = a unit conversion factor
Cv = the volumetric runoff coefficient defined as that portion of rainfall that runs off as
stormwater over the x-day period
Rx-day. y-%ile = is the x-day total rainfall depth (mm)that is not exceeded in y percent of rainfall
events.
A = total catchment area (Ha)
Sediment storage zone design parameters used here:
. 50% of setting zone capacity
AREA OF SITE Cv RX-day.y- TOTAL SETTING SEDIMENT TOTAL
TREATMENT %ile CMT ZONE STORAGE BASIN
(Ha) VOLUME VOLUME VOLUME
(m3) (m3) (m3)
150x21 A 0.3 43.4 0.315 41.0 20.5 61.50
70x21 B 0.3 43.4 0.147 19.1 9.55 28.65
Basin A: 13.7m x 3m x 1.5m D, setting depth 1m, storage 0.5m
Basin B: 9.55m x 2m x 1.5m D, setting depth 1 m, storage 0.5m
1209 Animal Husbandry -
Top Forestry Rd. Ridgewood SWQMP_REV_3
SEPTEMBER 2013
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