Stormwater Management Plan 12_05_26

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Appendix B – Construction Phase Stormwater
Quality Management
General
Best practice measures shall be utilised during the construction phase to minimise the potential impacts of the
pollutants mentioned above. Detailed Erosion and Sediment Control Management Plans should be developed
in conjunction with the Operational Works design prior to construction works commencing in accordance with
the International Erosion Control Association (IECA) - "Best Practice Erosion and Sediment Control (BPESC)
document" and overseen by a Certified Professional in Erosion and Sediment Control (CPESC) or Registered
Professional Engineer Queensland (RPEQ).
Through their principal contractor, the developer shall be responsible for ensuring that temporary sediment
and erosion controls are installed and maintained correctly.

Pollutants
The pollutants that would typically be generated during the construction of the proposed development are
outlined in Table 9.
TABLE 9: TYPICAL CONSTRUCTION PHASE POLLUTANTS

 Pollutant                 Source
 Litter                    Paper, construction packaging, food packaging, cement bags, offcuts
 Sediment                  Unprotected exposed soils and stockpiles during earthworks and building
 Hydrocarbons              Fuel and oil spills, leaks from construction equipment
 Toxic Materials           Cement slurry, asphalt prime, solvents, cleaning agents, wash waters 9e.g. from
                           tile works)
 Ph Altering               Acid sulphate soils, cement slurry
 Substances

Potential Impacts
Construction activities can have a potential impact on water quality. Removal of vegetation, earthworks and
changes to drainage patterns can result in erosion and sediment being washed into waterways. This can
impact the physical-chemical parameters of the receiving water, the decline in the health of aquatic
ecosystems, and overall aesthetics. The potential impacts on the development site's surrounding receiving
waters will be minimised during the construction phase with typical measures outlined below. These measures
should be adequately detailed on erosion and sediment control plans as part of the development's Operational
Works application.

Performance Objectives
The amount of runoff traversing and discharging from the site while under construction should be kept to a
minimum. This will restrict soil erosion and mobilisation of sediments and pollutants through and off the site.
During the construction phase, stormwater runoff at discharge points shall comply with the objectives detailed
in QLD SPP (July 2017).

Control Measures
The following are typical treatment measures that should be implemented before the commencement of any
construction works. Detailed erosion and sediment control procedures shall be based on the erosion and
sediment control plans lodged at the Operational Works phase.



12 May 2026