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General Construction

Part B – Specification and Response Requirements

Annexure 2- Minimum Design & Construction Specification

Page 74 Updated 19/07/2013

Provide for double headed pillar hydrant(s) in a location(s) that complies with the

requirements detailed in AS2419.1 or as detailed on the drawings. . The hydrant standpipe

shall be 100mm NB galvanised “Heavy” steel pipe to AS1074, wrapped against corrosion

below ground level using “Denso” tape. Outlets shall be SA Metropolitan Fire Service type

64mm bronze globe valves with male hose fitting and cap. Valve outlets are to face in the

horizontal plane at a height of between 1000mm and 1200mm above finished ground level.

Paint the standpipe white, valves and caps Fire Brigade red with 2 coats of enamel paint

over etching primer.

The hydrant system will be required to provide a minimum flow as required under the current

Building Regulations. The Builder shall be responsible for making arrangements and testing

of the complete fire service to standards as required by the SA Metropolitan Fire Service and

SA Water.

3.16.7 Site stormwater drainage

Front and rear yard spaces shall be graded so that they are effectively drained to ensure that

site stormwater does not pond on the site or flow to and from adjacent properties as per the

design drawings.

Unless otherwise specified all sumps shall be a Grated Inlet in accordance with the attached

detail and in garden areas shall be installed in concrete a minimum of 100 mm thick and

600 mm in diameter or 600 mm square.

SAHT strongly discourages the use of pumps in stormwater disposal systems and unless

otherwise detailed they are not to be used.

Unless otherwise detailed pipework shall be a minimum of 90 mm uPVC stormwater grade

and under common drives 100 mm sewer class uPVC.

All grates in single units shall be class medium traffic and in single units class light traffic.

Where driveways back fall towards the unit provide a grated channel capable of carrying light

vehicular traffic.

At Practical Completion provide an Engineer’s certificate that the installed system complies

with the approved design

3.16.8 Stormwater Retention/Detention

3.16.8.1 General

An on site above ground Stormwater Retention system plumbed into the WC cistern is

required on all houses as detailed on SAHT Drawing SK 01 (Rev B) included in “Standard

Details” in Book B.

3.16.8.2 Tanks

The tanks shall be 1000 litre round or rectangular “Colobond” or pre-finished colour rainwater

tank permanently fixed on a suitable structural galvanised steel stand and concrete footing

system designed for the site conditions.

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