2015-12-08 Planning and Organisation Committee Agenda

PLANNING & ORGANISATION COMMITTEE MEETING AGENDA                              8 DECEMBER 2015


      Stormwater Drainage
28.   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 must include in particular:
      a.   Drainage structures generally as shown on the Approved Plans;
      b.   The provision of inter-allotment drainage for all proposed lots and the registration
           of appropriate drainage easements. All surface and roof stormwater runoffs from
           all lots, including lots with s street frontage, must be collected and drained into
           the inter-allotment drainage system. Also, overland flow paths must be provided
           and formalised over the inter-allotment drainage easements where required; and
      c.   A maintenance path to any proposed bioretention basin that is suitable for
           Council’s maintenance vehicles.
29.   The submission of the first application for operational works approval associated with
      the development must include a Stormwater Management Plan certified by an RPEQ
      and including relevant modelling and calculations to demonstrate that the development
      will be able to achieve 80% reduction in Total Suspended Solids, 60% reduction in
      Total Phosphorous and 45% reduction in Total Nitrogen and that the Peak 1-year ARI
      event discharge within the receiving waterway is equivalent to the pre-development
      peak 1-year ARI event discharge.
      Operational Works plans must be consistent with the approved Stormwater
      Management Plan.
30.   The design for any bioretention basins must be consistent with the Water by Design
      (2014) Bioretention Technical Design Guidelines (Version 1.1) Healthy Waterways
      Brisbane.
31.   The submission of the first application for operational works approval associated with
      the development must demonstrate that any runoff from the George street frontage
      must be treated through natural treatment strategies, including grass swales and bio-
      retention systems or vegetated filtration strips prior to discharge to receiving
      waterways.
32.   The submission of the first application for operational works approval associated with
      the development must include an Acid Sulfate Soil Assessment report prepared by
      suitably qualified specialist in accordance with Queensland Acid Sulfate Soil Technical
      Manual and supported by appropriate testing and documentation to demonstrate the
      full extent of potential and actual acid sulphate soil in areas where excavations below
      5m AHD are necessary. If acid sulfates are present, the applicant shall either relocate
      the bioretention basins to be wholly elevated outside potential or include an acid
      sulphate soil management plan to address any potential impacts.



REPORT
1.    PROPOSAL
The application seeks approval to subdivide an existing 3.5ha lot into 11 detached house
lots and a balance environmental lot adjoining Wooroi Creek. The site has a split zoning of
Detached Housing and Rural Settlement.

The 11 residential lots include 6 fronting George Street ranging in size from 601m 2 to 640m2,
and 5 battleaxe lots ranging in size from 804m2 to 904m2 overlooking the proposed 2.729ha
environmental reserve. The reserve area is to be rehabilitated by the developer and then
transferred to Council.


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