Stormwater Management Plan · MCU15/0122

                                                                                 15099 - SBSMP/3
                                                                                          Page 13




Source node parameters used in the post-development mitigated model are as per the post-
development un-mitigated model documented in Table 5.3.

5.6.4 On-Site Detention
In order for the post-development stormwater discharge conditions to match the pre-
development conditions it is proposed to provide on-site detention in an underground detention
basin to be located within the southern portion of the site. Refer to Appendix C for the
Concept Drainage Plans.

The proposed basin will have the following dimensions:

       Basin base area = 38m2;
       Maximum basin depth = 2.0m;
       Maximum basin volume = 76m3
       Discharge orifice 1 diameter = 0.14m;
       Discharge orifice 1 centre height = 0.07m
       Discharge orifice 2 diameter = 0.15m;
       Discharge orifice 2 centre height = 1.1m




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville