Revised Stormwater Mangement Plan

65-67 Elanda Street, Sunshine Beach
Site Based Stormwater Management Plan
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4. Conclusions & Recommendations

4.1 Proposed Stormwater Management Plan
Through the hydrological analyses, it is identified that the proposed development will cause
flow increase, which might result in actionable nuisances to the existing environment.
Therefore, two 7kL roof water detention tank are proposed to mitigate the flow from the roof
area. Eventually, Stormwater runoff from the site will be discharged to the proposed soakage
trenches located at the rear of the property, as shown in Appendix E.

Building applications for future impervious area on the allotment shall address their impacts
on stormwater quality on an individual basis. The internal stormwater drainage system up to
property boundary must be maintained by body corporate arrangement in perpetuity.

4.2 Recommendations

4.2.1 Construction Phase
Prior to commencement of construction, an Erosion and Sediment Control Plan (ESCP) will
be implemented to minimise the impacts on stormwater quality. The plan will address site
and catchment specific erosion control measures, generally adhering to the following control
measures.

4.2.2 Pre-Construction
Before construction the following measures will be established and maintained for any to be
disturbed:

    •       Sediment fences to be erected;
    •       Stockpile areas to be designated to minimise impacts on site runoff; and
    •       Provision of shakedown pit for any entry/exit points to the site.

4.2.3 During Construction

        •     Construction related activities will be contained within the subject site where
              possible to minimise areas of disturbance.
        •     Topsoil retention for site rehabilitation.
        •     Regular inspection of sediment control measures; and
        •     Contractor’s Construction Management Plan to include day to day management
              requirements.




File Name:            WCD-22936 – 65-67 Elanda_SWMP.docx
Revision:             E                                                                  20