SBSMR 20004 Revision C - Op Works Application

The specific stormwater quality management objectives are met when comparing the mitigated
and unmitigated post-development site.

                           Developed         Developed       Load Reduction     Required Load
    Pollutant Type
                          Unmitigated        Mitigated             (%)          Reduction (%)
    TSS (kg/year)             352              40.3               88.5               80
     TP (kg/year)            0.889             0.235              73.6               60
     TN(kg/year)              6.97             3.27               53.2               45
   Gross Pollutants
                               61                 0                100                90
      (kg/year)


All relevant stormwater requirements have been addressed and support the development
application of the site.

With regard to the Approved Development MCU20/0128 please find certification herein as
required by Condition 33.b If the works are carried out in accordance with the design plans the
development of the site will not create a stormwater worsening on the adjoining downstream
properties.

This report also confirms Conditions:

47.1 all runoff can be filtered via vegetated areas prior to discharge from the site.
47.2 pollutant reduction predicted for the stormwater quality treatment train is designed in
accordance with the Water by Design MUSIC modelling guidelines (Version 1) 2010.




NMA-SBSWMR-20004 Noosa Youngcare                                                                  2