Site Based Stormwater Management Plan

Sediment Fences and Inlet Protection

Delineate site perimeter to prevent disturbing areas outside the project limits. Sediment
fences should be installed around the perimeter of works to ensure contaminated runoff is
filtered and sediment is trapped before leaving the site. Sandbags or geofabric should also
be placed around/over existing stormwater inlets/grates throughout the site to ensure that
any contaminated runoff is filtered before it enters the existing piped stormwater network.

Retain Sediment

Retain sediment-laden waters from disturbed, active areas within the site.

Stabilised Vehicle Entry/Exit Point

To minimise the transport of sediment off site, a stabilised entry/exit point should be
constructed. All vehicles entering / leaving the site must use this designated entry/exit point.

Stockpiles

Stockpile locations should be identified before the commencement of works. Ideally, they
should be located in a flat area at least 15m from any water body or stormwater inlet.
Sediment fences should be installed downslope of all erodible stockpiles, and upslope
protection measures should be used (i.e. sandbags or sediment fence) to divert runoff in
the event of rain. At the end of each working day stockpiles should be covered with geofabric
if rain or high winds are forecast.

Street Sweeping

Ensure that local roads are swept as required. This will minimise the potential for sediment
tracked onto the road to be washed into the stormwater system. If a large quantity of
sediment is being tracked onto the surrounding streets the stabilised entry/exit point may
need to be raked or reinforced with rock to provide more effective sediment removal for
vehicles.

Erosion Control Matting and Permanent Stabilisation

Exposed areas onsite should be permanently stabilised (i.e. with turf) as the construction
works progress. Erosion control matting or mulching should be used as a temporary
measure to stabilize exposed areas before permanent stabilisation can be undertaken.

Monitoring

Monitoring and recording of the performance of the drainage control devices including are
to be undertaken in accordance with local government requirements. It is further
recommended that the proposed construction works are undertaken during periods of dry
weather to reduce the potential for sediment to be transported off site during construction.
Site Based Stormwater Management Plan                                               Page 13 of 19
2123-SBSMP-01_Version 1.0 (October 2021)