SCG 31131(SWM).RevA

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).RevA