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

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7. Soil Erosion and Sediment Control

7.1 Objectives

» To comply with relevant environmental legislation (e.g. Environmental Protection Act 1994 and the
associated EPP (Water)).

» To minimise erosion and effectively contain any sediment or other pollutants in run-off generated by
the construction activities.

7.2 Requirements

7.2.1 Erosion & Sediment Control
» The Contractor will be responsible for sediment and erosion control on-site.

» Controls shall be installed in accordance with the project's erosion and sediment control plan (to be
attached to this document as Appendix D) and undertaken in accordance with SCRC, 2008 (and
IECA guidelines, 2008, where applicable)..

» Ensure vegetation clearing is staged and controls are installed progressively and as soon as possible
(silt fences before site disturbance and other measures immediately following exposure of soils).

» Sediment basins and/or sediment fences to be installed downstream of the work area (but outside of
exclusion zones) where stormwater concentration or sedimentation is expected to be high.

» Sediment build up against barriers and within sediment traps is to be cleaned out on an ‘as-needs’
basis.

» Stockpiles shall be appropriately managed and protected, shall be a maximum of three (3) metres
high and shall be set back at least 20 metres from drainage pathways.

» Kerb and channel drain pit protection is required where applicable.
» Monitor forecasts and install additional measures where heavy rainfall or storm events are predicted.

» Monitoring of erosion and sediment control devices/measures is to be conducted on at least a weekly
basis (daily during earthworks) (weekly inspection checklists are included in Appendix C) and
immediately following heavy rainfall events.

» Where controls appear to be ineffective, modifications are to be made on-site and the erosion and
sediment control plan is to be updated.

7.2.2 Oust Suppression

‘Site watering (including stockpiles) will be undertaken when considered necessary by the Site
Foreman, or in the event that three or more complaints relating to air quality conditions (dust
entrainment) are received within a 24-hour period. Prior to commencing any watering down of the
construction site for dust suppression purposes, it is recommended that contact is made with SCRC
to confirm the exact requirements applying to this site and the implications of the current water
restrictions.

41/22382/12 186 Girraween Sports Precinct 18
Environmentat Management Plan (Construction)