06/1168 - Change a Development Approval [As Published] · 132006.1168.02

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Playing Fields

The playing fields are to be excavated or filled with bulk material as described in section 3.4.2 and 3.4.3
above to a level of 250mm below the finished surface levels. The final 250mm shall be made up from
the stockpiled topsoil. If insufficient topsoil is available, the thickness of the topsoil layer shall be
modified with agreement of the Superintendent.

The final trim for the playing fields is to be completed to ensure the grades shown on the plans are
achieved. In addition, the vertical tolerance of setout points shall shown on the plans be +/-15mm.
Conforming survey is to be provided to the Superintendent prior to commencement of the playing fields
amelioration.

The playing fields are to be free of any depressions or humps and shall be free draining.

The amelioration of the playing fields cannot commence until the Superintendent has approved the final
trim of the surface.

3.4.6 Unpaved Areas

Footpaths and other unpaved areas shall be left free from rubbish, stones, felled timber and brush, and
left smooth and clean, true to the grade and levels shown on the drawings.

The allowable variation on design level at any point shall be 50 mm provided that all areas are free
draining and no ponding of water occurs.

3.5 Quality Control Testing

The cost of all testing of materials to ensure quality control during construction shall be borne by the
Contractor. If processed samples are unsatisfactory, costs of additional necessary testing will also be
bome by the Contractor.

Testing of subgrade CBR shall be carried out a minimum of 10 working days prior to the placement of
sub-base pavement material. The frequency of testing to be carried out shall be the maximum of either
one (1) test per 1000 square metres of subgrade, or one (1) test per identifiable soil type with a minimum
number of three CBR tests to be carried out for any project. The cost of all subgrade CBR testing shall
be borne by the Contractor.

3.6 Utility Services

Where any valve, hydrant or other surface fitting of a utility service occurs in the area to be constructed,
the Contractor shall ensure it is not damaged by the Contractor's operations. The Contract provides for
the Contractor to adjust the levels of cast iron boxes and fittings to suit new footpath levels. Generally all
these items are to be left flush with the final footpath levels or 25 mm above non-paved areas at the
completion of the Project.

3.7 Erosion and Sediment Control

During construction and upon completion of earthworks the Contractor is to undertake erosion and

41/22382/11840 Girraween Sports Precinct 21
Earthworks Package