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RAL210017
*(Refer Advisory Note)
25. A clause must be included in the contract of sale for lot 10 which requires any future dwelling
to be constructed within the building envelope shown on the Approved Plans and in
accordance with Bushfire Hazard Assessment v2 report listed within this Decision Notice.
Flooding
26. The surface levels of all lots (excluding drainage reserves) must be constructed to provide
flood immunity. The works must be undertaken in accordance with an Operational Works
approval and must include in particular surface levels that are higher than each of the
following:
a. the local 1%AEP flood level at year 2100 (plus freeboard)
b. the regional 1%AEP flood level at year 2100 (plus freeboard)
27. An easement for drainage purposes must be registered against the title of proposed Lot 10
in favour of Council over the land area identified for easement South of the building envelope
on proposed Lot 10 on Plan 13010-PRO-10G, prepared by LSD, dated 17th December 2021
28. All works, including filling and compensatory excavation for floodplain storage, are to be
carried out generally in accordance with Section 2.2 of the Stormwater Management Report
prepared by Peak Urban dated 28 October 2021
Stormwater Drainage
29. The site must be provided with a stormwater drainage system connecting to a lawful point of
discharge. The works must be undertaken in accordance with an Operational Works approval
and the Queensland Urban Drainage Manual, and must include in particular:
a. extension of the site stormwater system to accommodate stormwater from Pavilion
Street;
b. cut off drains at the eastern interface of Lots 1 and 9 to intercept runoff from external
properties, including registration of drainage easements over these drains in favour
of the upslope properties;
c. collection and discharge of stormwater to the proposed detention basin, including
the provision of Level II inter-allotment drainage for lots which do not fall to the street
and provision of kerb adapters for all new lots which do fall to the street
d. the use of gravity stormwater drainage and not surcharge pits.
e. Stormwater runoff from the development must be disposed of on-site without
causing scour or damage to the subject site or any adjoining property.
Stormwater Quality
30. A stormwater quality treatment system must be provided for the development. The works
must be undertaken in accordance with an Operational Works approval and the latest version
of the Water Sensitive Urban Design Technical Design Guidelines for South East
Queensland, and must include in particular:
a. stormwater quality treatment devices of a size and location generally in accordance
with those shown in Stormwater Management Report prepared by Peak Urban
dated 28 October 2021
b. bioretention devices which:
i. are designed generally in accordance with the Bioretention Technical Design
Guidelines (Water by Design, 2012)
ii. are designed generally in accordance with IPWEQA Standard Drawing No. DS-
073, DS-075, DS-076, and DS-078
iii. are provided with a free-draining outlet from the sub-soil drainage system
Page 6 of 13
Document Set ID: 21808186
Version: 3, Version Date: 04/02/2022
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