LATE RFI - SCG 33114 - CD Issue 3 07.03 (2)

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).

Response
All sewer reticulation is under the authority of Unitywater. The proposed lower units will be pumped to a new
sewer connection in accordance with a Unitywater Connection Application.

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).




SCG Consulting Engineers                            Page 3 of 4                                  SCG Ref:33114(L1)