Attachment 1 - Op Works Negotiated Decision Notice · OPW11/0335

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[OCR of page images]
OPW 11/0335

 

Bioretention Basin Vegetation

33. Trees and shrubs must not be planted in the bioretention swale treatment area to prevent
loss of treatment area, damage to related components (eg subsurface drainage) and
ongoing maintenance issues unless otherwise directed by a representative of Councils’
Hydraulics and Water Quality Unit.

34. Where landscaping/garden beds are proposed adjacent to the bioretention basin, a
900mm deep root barrier must be installed between the landscape/garden area and the
bioretention basin/swale.

ASS Management

35. Where ASS is disturbed, adopt and implement the measures of the acid sulphate soil
management plan (Simmonds and Bristow Pty Ltd, Essence of Peregian SWMP, S&ECP,
March 2012, Appendix G - ASS Management Plan). The management plan must be
updated as required to reflect current standards, best practices, development and works
modifications, however, any modifications with the potential to result in increased
environmental impacts must be approved.

36. Any ASS disturbance must be managed to ensure that all waters including leachate from
the disturbance and subsequent treatment, to be discharged to the conservation area,
stormwater or waterways achieves prior to release, a pH range of 6.5-8.5 pH units,
Suspended Solids:- 50mg/L maximum, Total Iron:- 0.3mg/L maximum, Total Aluminium;-
0.2mg/L and Visual Amenity :- No visible plume

37. All waters including surficial and groundwater seepage from excavations to be discharged
to stormwater or waterways must achieve, prior to release, a pH range of 6.5-8.5 pH units,
Suspended Solids:- 50mg/L maximum, Total Iron:- 0.3mg/L maximum, Total Aluminium;-
0.2mg/L and Visual Amenity :- No visible plume

Erosion and Sedimentation

38.A Erosion and Sediment Control Plan (E&SCP) and a completed Design Certificate for
Erosion and Sediment Control must be provided to Council’s Delegate prior to the on-site
pre-start meeting and prior to works commencing. The Design Certificate for Erosion and
Sediment Control (E&SC) is to be completed using the form provided as Attachment 1.
The information provided in the Design Certificate must not be false or misleading. The
E&SCP must:

e be prepared by a suitably qualified and experienced professional;

e relate to each phase of the works (including clearing, earthworks, civil construction,
services installation and landscaping) and detail the type, location, sequence and
timing of measures and actions to effectively minimise erosion, manage flows and
capture sediment;

e be consistent with current best practice standards (refer E&SC Advice Note 1) to
the extent that the standards are not inconsistent with the conditions of approval
and taking into account all environmental constraints including erosion hazard,
season, climate, soil, and proximity to waterways;

e provide sufficient detail regarding the manner in which compliance with all
conditions of this permit relating to E&SC is to be achieved; and

e include the results of all soil investigations undertaken for the site and on which the
E&SCP is based

39. The name and contact details of the nominated Proponent, Land Owner, Superintendent
and Principal Contractor, for the purposes of compliance with the conditions of this
approval, must be provided to Council’s Delegate in writing prior to the on-site pre-start
meeting and prior to works commencing.. The details must include the details of the
corporation (including ACN) or natural person undertaking each role. Any changes to

FM1509s/2-13/04/2011 Page 6 of 24