SUPERSEDEDNegotiated Decision Notice - Advice Agency - DNRW [As Published] · 132007.2399

                                                                                            2007/2399



61.   Registered easements are to be provided on the Plan of Survey over all sewerage mains
      within private property. Easements are to be equivalent in width to twice the depth to invert
      level of the sewer at the deepest point within the allotment. Easements are to be provided
      parallel to and centred over the sewer line, with a minimum width of 3.0 metres.
62.   No building or other structure shall be constructed or encroach over an easement.
63.   Any building or structure within proximity of an easement or any other public utility’s
      underground services must have its foundations designed so that no surcharge loads are
      imposed upon such underground infrastructure. Foundations must be taken down a minimum
      of 1.0m below a line of influence measured 1.0m in the direction of the foundation from the
      centreline of the closest underground service and along the natural angle of repose of the
      foundation soil type(s).
      Plans, and supportive documents, detailing these proposed foundations shall be designed by
      a registered practicing Geotechnical Engineer and submitted with the application for a
      Development Permit for Operational Works.

Earthworks
64.   A registered practicing Geotechnical Engineer shall test the existing ground conditions for
      suitability of placing additional fill, prior to such fill being placed.
      Filling works shall be restricted to the subject site itself, and the finished fill levels are to taper
      to the level of the adjoining property prior to the rear boundary of the property. Batters shall be
      at a maximum grade of 1:4 unless retained by a wall.

      Any existing fill or natural materials on the site or with the extent of approved works external to
      the site which do not satisfy the Manager - Land Development's or a Geotechnical Engineer's
      requirements shall be removed and replaced with suitable material.
65.   Following completion of the filling works and prior to endorsement of the Plan of Survey for
      Stage 2, the registered practicing Geotechnical Engineer supervising the works shall submit
      compaction tests across the entire filled areas and a site classification report for each lot
      subject to filling. The extent of fill and each lot site classification shall be shown on a metes
      and bounds survey plan.
      An appropriate property notation shall be placed on Council's rates records to advise
      prospective purchasers of lots that have been filled that special foundations requirements will
      apply.

Acid Sulfate Soils
                                                                                                 3
66.   As the site is located below the 5m AHD, any excavation works consisting of 100m or greater
                                                   3
      and/or any filling works consisting of 500m or greater and with an average depth of 0.5m or
      greater will need to be carried out in accordance with State Planning Policy 2/02 Planning and
      Managing Development Involving Acid Sulfate Soils. In this regard appropriate testing and
      supporting documentation prepared by a suitably qualified specialist shall be submitted to
      Council for approval prior to obtaining a Development Permit for Operational Works.
67.   As the subject site is likely to contain Acid Sulfate Soils, Council wishes to make the applicant
      aware of their obligations in terms of good environmental practice, which requires that Acid
      Sulfate Soils:-
         should not be removed from the site,
         should not be disturbed, if possible, and
         should be treated and neutralized on site where required.
      In the event that Acid Sulfate Soils are removed from site and forwarded for disposal at one of
      Council’s landfill sites, Council may:-

                                                                                              11 of 26