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SWMP change reps
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• High Flow Orifice = 75mm diameter
• Required Volume = 23m3
• Provided Volume = 28m3
Detention Tank for Building 6 & 7 roof water:
• Base Area = 24m2
• Internal Depth = 1.9m
• Low Flow Orifice = 95mm diameter
• High Flow Orifice = 110mm diameter
• Required Volume = 45m3
• Provided Volume = 48m3
the proposed BR-A will have the following properties: -
• Base Area = 32m2
• Internal Depth = 0.35m
• Low Flow Orifice = 250mm diameter
• Overflow Wier Elevation From Base = 0.35m
• Required Volume = 11.7m3
• Provided Volume = 12.8m3
Figure 6.1 illustrates the DRAINS Model layout for the site.
SCG Consulting Engineers Page 20 SCG Ref: 33132(SWMP).RevC
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