2022-02-17 Ordinary Meeting Minutes

ORDINARY MEETING MINUTES                                                     17 FEBRUARY 2022


        33.   Certification must be submitted to Council from a qualified person* which certifies
              that the development has been constructed in accordance with the
              recommendations contained in geotechnical investigation report 18151-001-Rev0,
              titled: “Proposed Commercial & Residential Development 30-32 Doonella St
              Tewantin”, dated 22 June 2018 and prepared by Tectonic Geotechnical and
              Environmental Engineers, and that the 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

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