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Attachment 5B - Technicial memorandum RRA Flood Assessment extra 2100
PO Box 120 Coolum Beach Qld 4573
Mob 0405 194 639
Email [email protected]
Web www.hydrologyandwater.com.au
ABN 25 153 466 981 ACN 153 466 981
Technical Memorandum
Date: 16/6/2022
Subject: Peak flood levels at RRA site for rare events at Year 2100
Document Ref: J00352M1V1
Prepared By: Rob Stewart (Director, RPEQ 13272)
Signature:
Prepared For: Noosa Council
Attention: Cody Johnston
1. INT RO D UC T IO N
This Technical Memorandum is provided as supplementary information to our April 2022 report
describing the flood assessment for the Noosa Landfill RRA Flood Assessment (J00352R1V2). The
information provided in this document should be interpreted in conjunction with the assumptions /
limitations described in the original report.
The Proposed Case TUFLOW model has been re-run with rare events simulated based on climate
change conditions for the Year 2100. The following events have now been run with Year 2100
climate change conditions: 0.5% AEP, 0.2% AEP and 0.1% AEP. Updated tables of results
showing peak flood levels around the proposed RRA expansion site are provided in Attachment 1.
2. L I ST O F AT T AC H M EN T S
Attachment 1 Attachment 1 - Peak Flood Levels.pdf
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Peak Flood Levels (mAHD)
A B C D
0.1% AEP (Q1000) Year 2100
D 0.2% AEP (Q500) Year 2100
0.5% AEP (Q200) Year 2100
1% AEP Year 2100
1% AEP (Q100)
10% AEP (Q10)
C
50% AEP (Q2)
63% AEP (Q1)
B
A
Attachment 1