SCG 31131(SWM).RevB - REceived 3.3.22.pdf

Potential Causes



         •      Leaks from parked vehicles within the completed development.
         •      Washing of vehicles within the completed development.



Mitigating Measures



         •      Fall driveways and parking areas towards adjacent landscaped strips, vegetated swales
                and the bioretention bed.



Nutrient Runoff:



Nutrients such as Nitrogen and Phosphorus can be mobilised and transported in Stormwater runoff from
the site. This can compromise Water Quality Objectives.



Potential Causes



         •      Runoff from hard surfaces within the site.
         •      Detergents used in car washing and similar activities.
         •      Fertilisers used in propagation of landscaped areas.
         •      Embodied nutrients contained in silt (topsoil) runoff.
         •      Embodied nutrients contained in runoff.



Mitigating Measures



         •      Fall vehicles pavement areas towards landscaping areas and the bioretention bed.




SCG Consulting Engineers                    Page 12                         SCG Ref: 31131(SWMP).RevB