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ATTCH 3 - IR Response - Erosion, Coastal Processes and Stormwater (Dr Trevor Johnson)
Attached to the e-mail RAL17/0501 IR Response email 2 of 4.
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Kenlynn Pty Ltd Report Number 620.12166-R01 Castaways Beach 3 November 2017 Stormwater Management Plan Version v0.1 Page 11 4 CONCLUSION It is proposed to construct a six lot subdivision on the subject site at 2 David Low Way, Castaways Beach. It is proposed to regrade the developable area within each lot in one of the following ways: * Scenario 1 — high point at David Low Way, and lot falls to its eastern boundary; or e Scenario 2 — high point in the middle of the lot, and the lot falls both to its eastern and western boundaries. The basin(s) will capture and infiltrate the stormwater runoff from all events up to and including the 1% AEP flood event. Consequently: e the proposed development will meet the environmental objectives for water quality management as required by the SPP and The Noosa Plan; and e the proposed stormwater discharge strategy will not affect stability on landslip areas or cause erosion. SLR Consulting Australia Pty Ltd
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