Information Request MCU23 0109

5.   Alternatively, provided a full suite of amended plans demonstrating that all stormwater
     structures (headwall) are contained entirely within the subject site. The amended plans
     must be prepared by a suitably qualified person (RPEQ – Registered Professional
     Engineer of Queensland) and include the necessary drainage easements.

Issue – Sustainable Building Design Code
The proposed stormwater management plan does not include 3,000 litres of rainwater storage
per dwelling as required by Performance Outcome PO2 of the Sustainable Building Design
Code.
Information Required
6.   Provide sufficient detail to demonstrate that the development achieves compliance with
     Performance Outcome PO2 of the Sustainable Building Design Code. The detail must
     be prepared by a suitably qualified person (RPEQ – Registered Professional Engineer
     of Queensland).


Issue – Service Connections to Units 8-10
The proposed Reconfiguring a Lot application proposes to subdivide by Community Title
Scheme as shown in Black Wood’s Property Plan (DA.05, Rev. A). Insufficient information has
been provided demonstrating that proposed Units 8-10 are capable of being serviced by
reticulated sewer due to the gradient of the site as required by Performance Outcome PO12(e)
of the Reconfiguring a Lot Code.
Information Required
7.   Provide additional detail demonstrating how proposed Units 8-10 will be serviced by
     reticulated sewerage. The additional detail must be prepared by a suitably qualified
     person (RPEQ – Registered Professional Engineer of Queensland).


Issue – Stormwater Quality Treatment
The subject site is approximately 2,028m2 in area and proposes to increase the total
impervious area from ~5% to ~70%. While the area does not trigger assessment with the
stormwater quality design objectives (>2,500m2), the site drains into a High Ecological Value
site. Council is concerned that stormwater runoff may not be adequately treated to maximise
the removal of nutrients as required by Performance Outcome PO6 of the Water Quality and
Drainage Code.
Section 4.6 of Pivotal Perspective’s Planning Report proposes a bioretention basin in the
south-western corner of the site. A bioretention basin has not been proposed as part of SCG
Consulting’s Stormwater Management Plan (33114-SW1.1, Rev. A).
Information Required
8.   Provide additional information demonstrating that the proposed development has been
     designed to protect receiving waters by means of ensuring stormwater runoff is treated
     to achieve maximum removal of nutrients. The additional information must be prepared
     by a suitably qualified person (RPEQ – Registered Professional Engineer of
     Queensland) and include, but not be limited to:
     8.1. demonstrate compliance with Performance Outcome PO6 of the Water Quality
          and Drainage Code; and
     8.2. demonstrate stormwater runoff is suitably treated to achieve a:
           •   60% reduction in total phosphorous; and




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