Appeal judgement 30-32 Doonella St Tewantin - MCU21-0013 OPW21-0013

      a.   Water quality treatment features that achieve the following pollutant reduction
           targets as measured by a MUSIC model developed in accordance with the Water
           by Design MUSIC modelling guidelines;
      b.   the use of gravity stormwater drainage and not surcharge pits;
      c.   A stormwater quality treatment system must be provided for the development that
           achieved 80% reduction in Total Suspended Solids, 60% reduction in Total
           Phosphorous, 45% reduction in Total Nitrogen compared to an unmitigated
           scenario. The works must be undertaken in accordance with an Operational Works
           approval and the Water by Design Guidelines.
40.   All stormwater quality treatment devices must be maintained in accordance with the
      Water by Design (2009) - Maintaining Vegetated Stormwater Assets (Version 1). A copy
      of this document must be retained on the site together with the approved Operational
      Works drawings for the stormwater quality treatment system and a detailed life cycle
      costing of the system attached as an addendum. Records of all maintenance activities
      undertaken must be kept and made available to Council upon request.
41.   Any proposed Community Management Statement required for the development must
      include the Water by Design (2009) – Maintaining Vegetated Stormwater Assets
      (Version 1) document and must include the full cost of maintaining the system in
      accordance with that document.
42.   Operating rainwater collection and stormwater harvesting tanks must be provided as
      shown identified in section 6.2 of the Engineering Report & Stormwater Management
      Plan report For Proposed Residential and Commercial Tenancies at 30-32 Doonella St
      (A6035/21/ENG/RevB). The tanks must be provided in accordance with an Operational
      Works approval.
43.   Certification must be submitted to Council from a qualified person* which certifies that
      the rainwater collection tank/s and associated reticulation has/have been installed in
      accordance with the requirements of this Decision Notice.
      *(Refer to Advisory Note)
      Acid Sulfate Soils
44.   All waters, including stormwater runoff, groundwater seepage and leachate must
      achieve the following quality prior to release from the site at all times:
      a.   a pH range of 6.5-8.5 pH units;
      b.   50mg/L maximum total suspended solids concentration;
      c.   0.3mg/L maximum total iron concentration;
      d.   0.2mg/L maximum total aluminium concentration; and
      e.   no visible plume at either the point of release from the site or within a waterway.
      ENVIRONMENTAL HEALTH
      Waste Storage
45.   The developer must provide waste storage and disposal facilities in accordance with
      Planning Scheme Policy 9, Waste Management, including an external imperviously
      paved area correctly sized for all refuse and recycling containers and suitably screened
      from public places and neighbouring properties.




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