Q7877 UW SAN Report, 73, 75 & 77 Eumundi Noosa Road & 2C, 2D, 2E Starboard Avenue, Noosaville, QLD 4566 · MCU24/0125

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e
Unitywater

Serving you today,
investing in tomorrow.

Unitywater does not guarantee that firefighting flow will be available at all times on the grounds
that components of Unitywater’s water supply infrastructure may be shut down temporarily for
planned maintenance or to repair bursts or damage caused by others.

The current type of use for this property is Residential including multi-storey residential
dwellings of less than 3 storey; according to Council’s Planning scheme. Hence, in accordance
with Table 1 above, the Minimum Standard of Service that applies is 15 litres/second at 12 m
residual head.

Current Dynamic Model Data

Unitywater’s current dynamic water supply model indicates the following under a demand
condition of 2/3 of the estimated maximum hour demand on the peak day in Year 2026.

Table 2 — Estimated Available Flow and Pressure to 2026

 

Assessment Node Water Main Background Estimated RL at
(Location as shown below) | Diameter (mm) | Demand (L/s) | Assessment node(mAHD)

 

 

 

 

 

 

 

 

 

Hyd 5015687 100 0 14.0
Flow (I/s) 0 10 15 20
Pressure (m) 44.8 42.5 40.7 38.4

 

 

 

 

Unitywater reserves the right, at any time, to change the operating pressures3.9 within the
water supply network, but not below the Minimum Standard of Service stated in Table 1.

Unitywater accepts no liability whatsoever for changes in the operating pressure of this water
supply network and the consequent impacts on any fire suppression system within the subject
property. It shall be the property owner’s responsibility to ensure that any fire suppression
system operating on the property complies with the relevant requirement of the Building Code
of Australia and that this system is regularly tested for compliance with the relevant standards.
Any upgrade of the fire suppression system required due to changes in the operating pressure
of the water supply network will be the property owner’s responsibility.

Suggested Approach to Design of Fire Suppression System

It is suggested that the owner of the property consult with a qualified and suitably experienced
hydraulic designer to consider the risks associated with designing a fire suppression system
for the subject property based upon the output from Unitywater’s current dynamic water supply
model. Unitywater may alter the operating pressure of the network at any time.

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Unitywater has certification to:

OH&S AS/NZS 4801:2001 Reg No 500000079
Environmental ISO 14001:2015 Reg No
500000079

Quality ISO 9001:2015 Reg No 500000079

Food Safety ISO 22000:2018 Reg No 500000079

Unitywater is a statutory authority that provides water
and sewerage services for the Moreton Bay, Sunshine
Coast and Noosa Council areas.

 

 

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e
Unitywater

Serving you today,
investing in tomorrow.

It is suggested that this risk should be balanced against the cost of designing and installing a
fire suppression system that would provide the desired level of performance when supplied
with water from Unitywater’s mains at the Minimum Standard of Service stated in Table 1.

It may be beneficial to consider providing space and conduits on the subject property that
could be utilised for installation of storage tanks and or pumping equipment and associated
electrical equipment in the instance that an upgrade of the fire suppression system was
necessary in the future.

Further Information

 

Please note that the Flow and Pressure details given in this letter is based ona
dynamic model run and not from a physical hydrant test

Should you require clarification of the foregoing please contact Unitywater on 1300 086 489
during business hours or by email to [email protected] sincerely

a

Asoka Kiriella
Unit Leader Network Planning

 

 

 

Node Location map ( Node H2)

95th percentile here

 

 

 

 

 

 

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Unitywater is a statutory authority that provides water Unitywater has certification to:
y tory y Pp A TS fy eS OH&S AS/NZS 4801:2001 Reg No 500000079
and sewerage services for the Moreton Bay, Sunshine NATA Rey RSF ey Environmental ISO 14001:2015 Reg No

 

Coast and Noosa Council areas. 500000079
Quality ISO 9001:2015 Reg No 500000079

Food Safety ISO 22000:2018 Reg No 500000079