Judgment - Stockwell v Noosa Council - PEC Appeal 1998 of 2024 - 26.06.25 · MCU22/0094

Stormwater collected from the roof will be harvested within the proposed 3kL slimline rainwater tank. This
volume will have the capacity for year-round toilet flushing reuse, meeting the water demand of
1070L/day. This approximation of water demand has been calculated using the information within Table
4 below.
                                                        Rainwater Tank Assumptions
                                   Time                                                          8 hours a day, 5 days a week
                                                                                                              98 children
                                  People
                                                                                                                17 adults
                                 Flush (L)                                                            12L/single flush (adult)
                                                  Table 4 - Rainwater Tank Calculations

Pits and pipes will collect stormwater runoff within the childcare play areas, where the play areas slope
away from the proposed building and carpark. Pit and pipe network will convey runoff into the
bioretention basin and Jellyfish filters for treatment.

Treated water will discharge off site via two proposed stormwater connections. The treatment plan for
the proposed development is depicted on MPN Plan 9307-CP.1.01 attached in Appendix C, with MUSIC
excerpt in Figure 3.




                                                            Figure 3 – Treatment Plan




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Inspired engineering

10 April 2025
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https://mpncnetau.sharepoint.com/sites/Administration/Shared Documents/9000-9999/9300-9399/9307/Reports/10-04-25 Stormwater Management Plan_Issue G.docx