23616 DA - Change a Development Approval [As Published] · 132003.221132.4

135. Fill imported to the site may only be from a site licences with The Environmental
Protection Agency or from a site for which a Development Permit for Operational Works
has been issued approving the export of fill.

136. A registered practising 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 development area itself, and the finished fill levels
are to taper to the existing levels prior to the rear boundary of the development area.
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 to
the site which do not satisfy the manager — Land Developments or a geotechnical
Engineer's requirements shall be removed and replaced with suitable material.

137. Fill shall be compacted to 95% relative dry density as per Main Roads Department Test
No. Q8A. A registered practising Geotechnical Engineer shall supervise all the
placement of fill and shall certify that all lots have been compacted to the required
standard.

Any existing fill on the site that does not comply with Council's requirements shall be
removed at the direction of the Manager — Land Development prior to additional filling
works commencing.

138. Following completion of the filling works and prior to endorsement of the Plan of
Survey, the registered practicing Geotechnical Engineer supervising the works shall
submit compaction tests across the entire filled areas and a site classification shail 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.

139. Stormwater is to be disposed of on site so as to cause no scour or damage to adjoining
properties to the reasonable satisfaction of the Manager —- Land Development. A
Development Permit for Building Works shall not be granted until a Development
Permit for Operational Works has been issued in regard to the drainage scheme.

140. The stormwater discharge from the site shall be designed such that there is no net
increase in the rate of discharge as a result of the development for storm events up to
100 year ARI.

141. Tabulated hydrologic and hydraulic calculations that demonstrate the adequacy or
otherwise of the existing site stormwater drainage system shall be submitted in
conjunction with a Development Permit for Operational Works. Such calculations shail
include any remedial measures necessary to rectify defects in the existing system.
Where proposed site damage is to be connected to the existing system the calculations
shall clearly demonstrate the adequacy of the existing drainage network to accept the
additional stormwater flows.

142. Stormwater drainage shall include measures to protect proposed allotments from run-
off from or to surrounding land. The design shall also address controls for gross
pollutants, nutrient runoff, oil and grease, and salt and sediment.

Underground stormwater shall be designed in accordable with Noosa Council
Engineering Design Standards, and shall be connected, where possible to Council's
existing drainage systems.

An easement of minimum width 4.0 metres shail be granted in favour of Council over
any stormwater pipes that traverse private property.

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