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

Schedule A — Response or Change to Conditions

Py Sta)

No

27

Description

To ensure that polluted run-off does not enter Burgess Creek,
stormwater shall be treated generally in accordance with the
Stormwater Quality Management and Assessment Report dated
September 2006 and prepared by Callaghan & Toth. The system shall
ensure that stormwater run-off from the carparking areas and the
driveways shall have the first flush (the first 12 mm of rainfall or hose-
down) collected in grease/oil arrestors prior to entering the proposed
GPT’s and bioretention zones. The proposed GPT’s may be designed
with grease/oil arrestor capacity.

All other clean stormwater, such as roof water, can be collected on
site and discharged through a single underground drain line directly
into the existing drainage system, bypassing the grease/oil arrestor.

To this end, a detailed management plan shall be prepared for the
proposed stormwater treatment system, which shall be submitted to
the Council for approval prior to obtaining a Development Permit for
Operational Works.

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.

Response

Stormwater bioretention and
infiltration system included in design
as per “Girraween Stormwater
Management Plan” by Ecological
Engineering.

Stormwater calculations provided
detailing sizing of pipes and pits as
well as bioretention pond.

Reference

For details refer
GHD drawings
C001 to C012

Action By

 

 

All site stormwater drainage shall be by means of a gravity system.

Yes

 

29

 

 

—t.

All stormwater drainage lines including inter-allotment drainage shall
be inspected by closed circuit television (CCTV) prior to
commencement of the approved Use.

CCTV inspection will be carried out by Council's CCTV contractor and
arranged by Council following satisfactory completion of construction
works. The developer will be responsible for the full cost of CCTV
inspection, including any additional inspection necessary following

To be included in construction
documentation