Decision Letter - Change to an Existing Approval [As Published] · 132005.1148.02

                                                                                        2005/1148



Stormwater Drainage
24.   Roof runoff from any new dwelling shall be directed to a rainwater storage system or tank
      (minimum storage 3000 litres per dwelling) that is plumbed to service the toilets in the new
      dwelling and landscaping areas. The design of the rainwater storage system shall be part of a
      Plumbing Application.
25.   All stormwater drainage permitted to drain from the site including overflows from the
      stormwater storage and runoff from paved areas shall be collected on site be discharged into
      Council’s existing stormwater system in Park Crescent where possible or into stormwater
      infiltration system/soakage pits with an adequate capacity for the 1 in 20 year storm event as
      minimum, and be designed by RPEQ.
26.   The proposed infiltration soakage pit/s shall be located as far as practicable away from the
      side and rear boundaries. A Development Permit for Operational Works shall be required.
27.   All site stormwater drainage shall be by means of a gravity system.
Sewer Mains
28.   Reticulated water supply and sewerage must be provided to the development site. The site
      shall be connected to the Council reticulated sewerage system via a separate, privately
      owned, sewage pumping station and rising main system. The system shall be installed at the
      time of building construction and shall:
      (a)     Be constructed to current industry standards;
      (b)     Include both duty and standby pumps;
      (c)     Include a septic tank on the upstream side;
      (d)     Provide a minimum 24 hours emergency sewage storage;
      (e)     Include a high level audible alarm and flashing light warning system;
      (f)     Deliver a maximum flow of 2.0 l/s to Council’s sewerage system;
      (g)     Be designed to ensure any potential noise and odour problems are prevented;
      (h)     Include rising mains constructed from minimum class PN 16 pipe work.
29.   Buildings and structures must maintain a minimum 1.0 metre clearance from the connection
      point of the private rising main to the Council main located within the site.
30.   Construction works undertaken in the vicinity of Council water supply or sewerage
      infrastructure must not adversely affect the integrity of the infrastructure. All costs associated
      with repair, replacement or alteration of infrastructure must be met by the applicant.
Earthworks and Site Stability

31.   All civil works on the site shall take into consideration the findings and the recommendations of
      the geotechnical investigation report dated 23 August 2005 prepared by SCG Consulting
      Engineers, Reference 15255(S).
32.   Cut and fill works required on site shall be undertaken without the use of vibratory equipment
      and in a manner does compromise the stability of the site or adversely impact on the
      stormwater drainage pattern and be in accordance with the geotechnical investigation report
      dated 23 August 2005 prepared by SCG Consulting Engineers.
33.   All excavations both temporary and permanent must be adequately retained to prevent the
      occurrence of landslip and the retention works shall be carried under direct guidance and
      supervision of a geotechnical engineer.
34.   Earthworks carried out on site shall not affect the structural integrity of any of the existing
      fences, services, road stability or structures that border the development site. Fences that are
      affected shall be replaced prior to plan endorsement. In this regard any fences to be replaced
      shall be clearly shown on the plans submitted for Operational Works approval.
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