Reference Documents - 5 School Street, Pomona - MCU24/0165 & OPW24/0222

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                 5.6.1.7 Stabilise Disturbed Areas
                 Provide temporary stabilisation of disturbed soils whenever active construction is not occurring on a
                 portion of the site. Provide permanent stabilisation during finish grade and landscape the site.
                 5.6.1.8 Protect Slopes and Channels
                 Safely convey runoff from the top of the slope and stabilise temporary and permanent channel crossings
                 as quickly as possible and ensure that increases in runoff velocity caused by the project do not erode
                 the channel.
                 5.6.1.9 Diversions of Upslope Runoff
                 Upslope runoff should be diverted away from areas of exposed soil to prevent the contamination of
                 clean runoff. This may be achieved by installing tightly abutting sandbags, creating a 'sandbag
                 perimeter bank' to divert flow.
                 5.6.1.10 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 filter any contaminated runoff before entering the existing
                 piped stormwater network.
                 5.6.1.11 Retain Sediment
                 Retain sediment-laden waters from disturbed, active areas within the site.
                 5.6.1.12 Stabilised Vehicle Entry/Exit Point
                 A stabilised entry/exit point should be constructed to minimise the transport of sediment off-site. All
                 vehicles entering and leaving the site must use this designated entry/exit point.
                 5.6.1.13 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.
                 5.6.1.14 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 there is a large quantity of sediment being tracked
                 onto the surrounding streets, the stabilised entry/exit point may need to be raked or reinforced with rock
                 treatment to provide more effective sediment removal for vehicles.
                 5.6.1.15 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 stabilise
                 exposed areas before permanent stabilisation can be undertaken.
                 5.6.1.16 Monitoring
                 Monitoring and recording of the performance of the drainage control devices are to be undertaken in
                 accordance with local government requirements. It is further recommended that the proposed
                 construction works be undertaken during periods of dry weather to reduce the potential for sediment to
                 be transported off-site during construction.
                 5.6.2 Operational Phase
                 The State Planning Policy states that stormwater management design objectives do not apply for
                 developments smaller than 2500m2, with the site being smaller than this size.




                  15 November 2024                                                                                         Page 11
Document Set ID: 23679130
Version: 1, Version Date: 08/04/2025