Delegated Report - Code - Planning OPW22 0303 [As published] · OPW22/0303

                      a.      Been duly designed by an RPEQ or CPESC and constructed in accordance with "best
                              practise" methods,
                      b.      Been revised by an RPEQ or CPESC to address the issues raised by changes in the
                              projected construction schedule and/or methods,
                      c.      Been revised to address predicted rainfall events, and
                      d.      Achieve the desired environmental outcomes.
               35.    Earthworks and the implementation of erosion and sediment controls are undertaken in ways
                      which ensure flooding characteristics (including stormwater quantity characteristics) external
                      to the development site are not worsened during construction for all events up to and
                      including the 1% AEP (1 in 100 year ARI) event.
               36.    Drainage paths must be regularly inspected to ensure the sediment fences/measures are not
                      being bypassed as a result of sediment build up. Sediment laden runoff must be prevented
                      from leaving the subject site and entering neighbouring properties and/or stormwater
                      systems.
               37.    Soil exposure must be limited on the site to a distance of no more than 2m beyond the extent
                      of earthworks shown on the approved plans except where the exposed soil is effectively
                      stabilised without delay and prior to rainfall occurring.
               38.    A log book for the Erosion and Sediment Control measures and inspections must be
                      maintained by the site manager and made readily available to Council when requested. The
                      supervising engineer must verify and endorsed the E&SC measures upon their installation,
                      and periodically check these measures and the log book during construction and the
                      stabilisation stages. Any defects in erosion and sediment control devices, such as sediment
                      fences, are to be inspected and documented. Upon Inspection, the contractor is to determine
                      whether the device should be replaced or repaired. Documentation is to include how the
                      damage was caused and what measures can be implemented to reduce the possibility of
                      repeat occurrences. Any damage to either permanent or temporary water quality control
                      structures or devices is to be immediately rectified at the contractor’s expense.
                      The effectiveness of the erosion and sediment control devices must be monitored. All ESC
                      measures are to be inspected:
                      a.      at least daily (when work is occurring on site) or weekly (when work is not occurring on
                              site); or
                      b.      within 24 hours of expected rain; or
                      c.      within 18 hours of a rainfall event (i.e. an event of sufficient intensity and duration to
                              mobilise sediment on site).
                      Retention of Existing Trees and Vegetation
               39.    All trees and vegetation identified for retention must be protected in accordance with AS
                      4970, Protection of trees on development sites.
               40.    A qualified person * must be engaged for the duration of the works to:
                      a.      Ensure works are carried out in accordance with the approved Arborist Report
                      b.      Oversee installation of all tree protection fencing prior to commencement of any works
                              onsite (including any clearing).
                      c.      Supervise tree protection within the development site and frontages, prior to, during
                              and following construction in accordance with AS 4970, Protection of trees on
                              development sites.
                      d.      Oversee approved tree removal in proximity to retained trees.
                      e.      Undertake a risk assessment of all trees within striking distance of the development
                              works and site and carry out hazard removal and amenity pruning in accordance with
                              AS 4373, Pruning of amenity trees.

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Document Set ID: 22338918
Version: 6, Version Date: 21/04/2023