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6.5.22 - Flooding Report 5 may
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25. Provide additional detail to demonstrate that the development (access and all lots)
achieves compliance with The Flood Hazard Overlay Code – Performance Outcome PO4.
Response: The Planning Scheme requires a minimum floor level of dwellings to be 0.3m
above the 1% (2100) AEP event. An assessment of the PMF event found that flood levels in
the PMF event are approximately 0.4m to 1.0m higher that the 1% (2100) AEP flood levels.
The recommended minimum building envelope / finished floor level (FFL) for each lot has
been taken as the greater of the DFE + freeboard (0.3m) or the PMF, as summarised in Table
4-5, so as to provide a refuge for residents in this event.
21-0288-FS001-V5 | Flood Investigation | 60 Glenridge Drive, Cooroibah |5
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