2022-02-17 Ordinary Meeting Agenda

ORDINARY MEETING AGENDA                                                       17 FEBRUARY 2022


          development has a minimum factor of safety against landslip of 1.5 in the long term.
          *(Refer to advisory Note)
    Earthworks and Retaining Walls
    34.   All fill and associated batters must be undertaken in accordance with the conditions of
          this Decision notice, and must be contained entirely within the subject site unless written
          permission from the respective landowner(s) is provided to Council. All earthworks must
          be undertaken in accordance with the provisions of Australian Standard AS3798:
          Guidelines on Earthworks for Commercial and Residential Developments.
    35.   Where the development involves excavation or filling over, or adjacent to, drainage,
          water supply or sewerage infrastructure, all access chamber surface levels must be
          adjusted to provide a freeboard of 100mm above the finished ground surface level.
    36.   All retaining walls must be designed and constructed in accordance with the planning
          scheme and must be certified by an RPEQ where exceeding 1.0m in height. All retaining
          walls that are publicly accessible and exceed 1.0m in height must be fitted with a
          commercial grade safety fence.
    37.   The retaining wall located to the north of the bio basin (shown on section D of
          A6035/21/D1, E with a TOW of RL8.4) must be amended to not exceed 0.8m above the
          NGL. The area between this retaining wall and the footpath further north can either be
          tiered (retaining walls no greater than 0.8m above NGL) or battered (1:4) to the footpath
          to the north.
    Damage to Services and Assets
    38.   Any damage caused to existing services and assets as a result of the development works
          must be repaired at no cost to the asset owner at the following times:
          a.    where the damage would cause a hazard to pedestrian or vehicle safety,
                immediately; or
          b.    where otherwise, upon completion of the works associated with the development.
    Any repair work which proposes to alter the alignment or level of existing services and assets
    must first be referred to the relevant service authority for approval.
    Water quality
    39.   The site must be provided with a stormwater drainage system connecting to a lawful
          point of discharge. The works must include in particular:
          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

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