H - Revised Integrated Water Management Plan by Cardno (inc MUSIC file) (13.09.19)

                                                                                           Integrated Water Management Plan
                                                                                   Noosa Marketplace : 2-20 HOFMANN DRIVE



              Catchment Areas and Proposed Stormwater Treatment

                                 Area (ha)        % Impervious          MUSIC Node              Proposed Treatment
 Catchment 1
 Roof                     0.91                  100                   Commercial            OG, Bio Basins
 Road                     0.81                  90                    Commercial            OG, Bio Basins
 Catchment 2
 Roof                     0.35                  100                   Commercial            Tank, Bio Basins
 Road                     0.80                  90                    Commercial            Tank, Bio Basins

Typical Bio retention details are shown in Table 6-5. It should be noted that the total filter area will be split
over a number of locations.
Table 6-5     Bio-Basin 1 Details
                    Parameter                         Bio-retention Basin
 Extended Detention Depth (m)                                   0.3
 Saturated Hydraulic Conductivity (mm/hr)                       100
 Filter Depth (m)                                                1
 Filter Area (m2)                                               100
 TN Content of Filter Media (mg/kg)                             400
 Orthophosphate Content of Filter Media (mg/kg)                 30



Litter Basket capture rate details shown in Table 6-6 are as provided by the manufacturer.
Table 6-6     Pollutant Capture Rates
 Gross Pollutants (kg/ML)          Total Suspended Solids (mg/L)
     Input          Output            Input           Output
        0             0                  0                0
   14.7808            0                 20                8
                                        40               14
                                        60               19.3
                                       79.3              23.4
                                       99.9              26.9
                                        100              30




V190428 | 10 September 2019 | Commercial in Confidence                                                                  20