Attachment C - Stormwater Management Plan - 30-32 Doonella Street_SMP-revA_full (00016826)

a

aquaintel

Table 2: MUSIC Base and Storm Flow Concentration Parameters — Urban

 

 

 

 

 

 

 

 

 

Total Suspended Total .
0 a Total Nitrogen
Solids Phosphorous (Logis mg/L)
Land Use Parameter (Logio mg/L) (Logi) mg/L) 70
Storm Base Storm Base Storm Base
Flow Flow Flow Flow Flow Flow
Mean 2.18 1.0 -0.47 -0.97 0.26 0.20
Ground
Std Deviation 0.39 0.34 0.31 0.31 0.23 0.20
Mean 2.43 1.0 -0.30 -0.97 0.26 0.20
Road
Std Deviation 0.39 0.34 0.31 0.31 0.23 0.20
Roof Mean 1.30 N/A -0.89 N/A 0.26 N/A
00"
Std Deviation 0.39 N/A 0.31 N/A 0.23 N/A

 

 

 

 

 

 

 

 

 

Table 3: MUSIC Runoff Generation Parameters - Urban

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter Urban
Rainfall Threshold (mm) 1
Soil Capacity (mm) 500
Initial Storage (%) 10
Field Capacity 200
Infiltration Capacity Coefficient a 211
Infiltration Capacity Coefficient b 5
Initial Depth (mm) 50
Daily Recharge (%) 28
Daily Drainage (%) 27
Daily Deep Seepage Rate (%) 0

 

2.3.2. Catchment Areas

The development site has been represented as four catchments, for the purpose of
representing the site development. Table 4 outlines the catchment areas and
imperviousness represented within the MUSIC model. The stormwater quality
catchments are provided in Figure 2.

Table 4: Catchment Areas

 

 

 

 

 

 

Catchment Area (m7) Impervious
Roof 825 100
Ground 1,249 50
Road 386 100
Road-Bypass 70 100
TOTAL 2,527