Ltr - 20241112 - Information Request Response - 100 Hilton Terrace, Noosaville · MCU24/0112

Response:
In response to Item 3 of the Information Request, Westera Partners has prepared an Earthworks Plan
and Response to Item 3 (refer to Attachment D), which outlines the excavation and filling works
required for the proposed development.
The Earthworks Plan includes the following summary of proposed earthworks:
▪   Total volume of cut – 89.0m3;
▪   Total volume of fill – 1,229.0m3.
The extent of filling changes the level of the site by less than 1m to create a pad for construction. The
Earthworks Plan prepared by Westera Partners included in Attachment D demonstrates the filling
proposed.
In direct response to Item 3(2), the proposal will trigger a future Operational Works application due to
the site being located in Area 1 of the Acid Sulfate Soils overlay and filling exceeds 500m3. For
Council’s assistance, we have prepared an initial assessment against the Acid Sulfate Soils Overlay
Code (refer to Attachment F). It is common and reasonable for the impacts associated with soil
disturbance to be managed through the preparation of appropriate management plans as a part of the
subsequent Operational Works application.
Council may wish to include a relevant and reasonable condition of approval for this material change
of use development application requiring the Applicant to prepare an Acid Sulfate Soils Investigation
Report, and an Acid Sulfate Soils Management Plan where the Investigation Report identifies that a
Management Plan is required. A suitable condition may be as follows (or similar):
     “Acid Sulfate Soils – Management Plan
     Submit an Acid Sulfate Soils (ASS) Investigation Report and Management Plan for approval by
     Noosa Council. The Investigation Report and Management Plan are to detail management
     measures of possible impacts of soil disturbance if disturbance (e.g. filling, excavation, drainage
     works, stripping of topsoil) is greater than 500m3. The ASS Management Plan must be in
     accordance with the Acid Sulfate Soil Overlay Code.
     The Investigation Report and Management Plan are to be prepared by a suitably qualified and
     experienced professional, with the following qualifications:

         •   qualifications in agricultural or environmental soils science with specialisation in soil
             chemistry and hydrology;
         •   at least 2 years’ experience in acid sulfate soil management; and
         •   accreditation by a professional organisation such as the Australian Society of Soil
             Science.
     (a) Implement Management Plan
     Implement and maintain the provisions of the approved 'Acid Sulfate Soil Management Plan'.
     (b) Submit Certification to Council
     Submit Certification to Council, by a suitably qualified Engineer certifying that the acid sulfate soil
     management measures as detailed in the approved report above, have been implemented.”
Alternatively, the Acid Sulfate Soils Investigation Report and Management Plan can be required to be
prepared and provided to Council for approval as part of the future Operational Works application.


Ltr - 20241002 - Information Request Response - 100 Hilton Terrace, Noosaville                              9