RFI - Attachment 5 - Amended Stormwater Management Plan · MCU22/0094

 31 March 2023


demand of 1018L/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

                                                                              96 children
                          People
                                                                               17 adults

                                                                        12L/single flush (adult)
                         Flush (L)
                                                                      3.5L/flush (children’s toilet)

                   Frequency of Use                               2 flushes per person, per day
                                          Table 4 - Rainwater Tank Calculations

A grass lined swale will capture stormwater runoff along the southern lot boundary, in which
landscaped areas slope away from the proposed building and carpark. Pit and pipe network will
convey runoff into the bioretention basin for treatment.

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




                                                  Figure 3 – Treatment Plan


5.4.3.7 MUSIC Results




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