20517 App J.pdf [As Published] · 132007.1259

Concept Stormwater Management Plan

Essence of Peregian

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Stochastic generation estimation and serial autocorrelation set to zero has also been adopted.

The existing site sub-catchment areas and percentage impervious values are presented in Table 4.3.

Table 4.3: Existing Sub-Catchment Areas and Percentage Impervious Values

 

 

 

 

 

Sub-Catchment Area (ha) % Impervious MUSIC Source Node
EXISTING (URBAN RES) 1.167 15 Urban Residential
GRASS (RURAL RES) 0.306 0 Rural Residential
HOTEL & ROAD (COMM) 0.566 95 Commercial

TOTAL 2.039

 

 

 

 

 

 

*Note: Highly vegetated area at western portion of site is not included in any models.

The developed site sub-catchment areas and percentage impervious values are presented in Table 4.4.

Table 4.4: Developed and Mitigated Scenarios Sub-Catchment Areas and Percentage Impervious Values

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sub-Catchment Area (ha) % Imp. Land Use
SUBA 0.103 40 Urban Residential
ROOF A‘ B1 0.128 100 Urban Residential
ROOF A 0.018 100 Urban Residential
SUB B 0.137 55 Urban Residential
ROOF A2 B2 0.134 100 Urban Residential
SUB C 0.186 60 Urban Residential
ROOF A2 B2 0.148 100 Urban Residential
SUB D 0.085 75 Urban Residential
SUBE 0.173 95 Commercial
SUB F 0.240 10 Urban Residential
ROOF F 0.123 100 Urban Residential
SUB G 0.839 0 Not included in modelling
Sub-Total 2.312 -

Commercial
SUB H 0.566 9% (Model No.’s 3 and 5 only)
TOTAL 2.879 :
4.3.3 Drainage Links

No routing has been adopted for ail drainage links within each model.
43.4 Treatment Nodes

Vegetated Swales, Bio-filtration Basins, Wetlands and Rainwater Tank treatment nodes were modelled in MUSIC.

The Bio-filtration Basin and Wetland treatment nodes have the following properties presented in Table 4.5. Further
detail of treatment node properties is presented in Appendix C.

 

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