Stormwater Reporting · RAL22/0021

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                  Figure 1 – Existing Site Aerial (sourced from Nearmap)


The existing site drains from south to north as overland sheet flow which is directed towards
the Noosa Drive road reserve. This road reserve consists of a two way road with densely
planted vegetation within the verge on either side of the road. The site ultimately drains to
Noosa River which is located to the north of the site. In the pre-development case no
stormwater from the site discharges to Picture Point Crescent.

Proposed Land Use (Post-development case)

The development proposes a residential subdivision of 1 lot into 2 lots. It is proposed that in
the future a single dwelling will be built on each of the lots. Refer to Appendix A for the proposed
lot reconfiguration layout and indicative building layouts based on the allowable building
footprint.

It is proposed to discharge all future roof areas from each lot to the Picture Point Crescent kerb
and channel. The remaining proposed ground areas will be connected to an infiltration trench
which allows a portion of the stormwater to infiltrate into the natural ground with any excess
flow discharging over the northern boundary as sheet flow, as it does in the pre-development
case.

Stormwater Quantity

Stormwater Discharge to Picture Point Crescent

It is proposed to discharge stormwater from all roof areas to the Picture Point Crescent kerb
and channel via a charged downpipe system. Details of the design are provided in Appendix
A. This stormwater will then flow into the existing grated pit located in Picture Point Crescent.