Minor Change Existing Approval 132008 478 02 {As Published}

                      a.      D15 (drainage layer) ≤ 5 × D85 (transition layer)
                      b.      D15 (transition layer) ≤ 5 × D85 (filter media)
                      Laboratory results and the hold point inspection document including photographs must be
                      provided for Council records.
               59.    Prior to the issue of the final Building Certification, Council must receive certification by the
                      supervising RPEQ confirming that the completed works of the biobasin are carried out in
                      accordance with the relevant standards and guidelines to achieve the design criteria and the
                      desired treatment outcome. Where necessary in-situ hydraulic conductivity testing should be
                      conducted in accordance with the instructions and recommendations of the certifying RPEQ
                      and the requirements of FAWB PRACTICE NOTE 1: In Situ Measurement of Hydraulic
                      Conductivity Belinda Hatt, Sebastien Le Coustumer April 2008 for the bioretention filter
                      media.
                      Fencing and Maintenance to the Biobasin device
               60.    Durable powder coated steel fencing or similar must be provided along the length of the top
                      of any retaining wall of the bioretention device that poses trip or fall hazard and in accordance
                      with the certified engineering design and/or the written instruction supervising engineer.
               An unobstructed maintenance access to the biobasin must be provided in accordance with the
               certified engineering design and/or the written instruction supervising engineer.
               NEW CONDITION 18 MAY 2021
                      Stormwater Management
               61.    Runoff from outlets of the downpipes of the shade sails must not exceed the available
                      capacity of the drainage systems the downpipes are directed towards. To achieve this, a
                      100% pervious roof must be installed or alternatively prior to the issue of a Development
                      Permit for Building Works provide to the satisfaction of Council:
                      a) Certification from a suitably qualified and experienced RPEQ engineer who is familiar
                         with the existing drainage system and approved Integrated Water Management Plan for
                         the site prepared by Callaghan and Toth for the Corporation of the Trustees of the Roman
                         Catholic Archdiocese of Brisbane, February 2020 (Ref 1923 IWMP.doc), that the
                         additional 265m2 of catchment directed to the western concrete lined spoon drain and
                         additional 380m2 directed to the outlet into the drain that receives flows from the eastern
                         catchment will not exceed the capacity of those respective existing drainage systems;
                         and

                      b) Design and certification by a suitably qualified and experienced RPEQ engineer (i.e.
                           including who is familiar with the existing drainage system and approved Integrated
                           Water Management Plan for the site prepared by Callaghan and Toth for the Corporation
                           of the Trustees of the Roman Catholic Archdiocese of Brisbane, February 2020 - Ref
                           1923 IWMP.doc) of any works necessary to increase the capacity of the drains that
                           receive discharges from downpipes, to facilitate their free drainage towards the bio
                           retention basin, and incorporation of appropriate scour protection in line with QUDM and
                           Noosa Plan PSP6 Engineering Design Standards where necessary to prevent scour.
               5.     REFERRAL AGENCY CONDITIONS

               Not Applicable
               6.     REFERENCE DOCUMENT

                      Plan No.               Rev.    Document Name                                 Date

                      Job No. 1923                   Integrated Water Management           Plan, February 2020
                                                     prepared by Callaghan & Toth



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Document Set ID: 21473277
Version: 5, Version Date: 18/05/2021