20517 App K.pdf [As Published] · 132007.1259

JwP

 

4 Network Analysis and Results

4.1 Design Cases

The demand from the proposed residential development was added to the H2OMap network models
of the Existing (2005) and Headworks (Ultimate) Noosa Shire water supply systems.

The following analyses have been performed:

1. A dynamic analysis under MH conditions for the Existing (2005) system, with the demand from
the proposed development.

2. A static analysis under Fire Flow conditions (30L/s) for the Existing system, with the demand
from the proposed development.

3. A dynamic analysis under MH for the Headworks system, with the demand from the proposed
development.

4. Astatic analysis under Fire Flow conditions (30L/s) for the Headworks system, with the demand
from the proposed development.

4.2 Existing System Analysis

The results for the proposed development from the Noosa Shire water supply network during MH
demand and under Fire Fighting conditions for the Existing system are given in Tables 4.1 and 4.2
respectively. The proposed internal reticulation and node identities are shown in Figure 1 and
Appendix A provides the results for the development demand nodes.

Table 4.1 Results under Maximum Hour Conditions at the Critical Node within the
Existing System

 

 

 

 

 

Node Pressure Acceptance
Identifier HGL (m) (m) Criteria Result
EPL 64.47 54.47 > 22m Satisfactory
Table 4.2 Results under Fire Flow Conditions at the Critical Node within the Existing
System
: Residual
Node Fire Flow Acceptance
Identifier (L/s) Btescute Criteria Bene
(m)
EP1 30 42.39 > 12m Satisfactory

 

The above analysis demonstrates that the Existing Noosa Shire water supply system is capable of
supplying the development in accordance with the design criteria.

 

SCANLON PROPERTY GROUP JUNE 2007
ESSENCE OF PEREGIAN, NOOSA — WATER SUPPLY ANALYSIS REVISION 1
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