letter

Subscribe to FAQ email updates and receive fortnightly design, policy and process advice from Development Services.

Subscribe now


FAQ Archive

SEQ Water Supply Code - Part 2 (Construction)
V1.1-2015

Extracts from clause 19.4

“Conduct and report testing in accordance with Section 6 of AS/NZS 2566.2:2002 (Buried Flexible Pipelines – Installation) using the test method appropriate for the pipe material as nominated in the AS/NZS standard i.e. Clause 6.3.4.1 (method M4) for DI and PVC pipes and Clause 6.3.4.2 (method M5) for PE pipes.”

“The test pressure shall be minimum 1200 kPa applied as close as practicable to the lowest point of the main, including drinking and non-drinking water systems as per Australian standards.”

“Hydrostatic pressure testing of property services shall be undertaken at the same time and to the same parameters as the water mains.”

“If property services are required to be tested separate to mains testing, ensure the maintap at each connection is opened following the pressure test.”

19.4.4 Under pressure cut-in connections

“Test the connection assembly on the host pipe prior to drilling in accordance with this Clause and any other Water Agency requirements.

Before cutting-in to the host pipe, pressure test the assembly by applying a pressure that is 400 kPa above the operating pressure of the pipeline, but does not exceed 1600 kPa, for a period not less than 3 minutes.

Visually inspect the assembly for leaks.

Accept the pressure test on the assembly if there is:
(a) no visible leakage; and
(b) no failure of any pipe, off-take, valve, joint or any other assembly component.”

Extract from AS2566.2 – Appendix M

"Testing shall not take place against closed valves unless they are fully restrained and it is possible to check for leakage past the valve seat. Mechanical ends that are not end load resistant shall be temporarily strutted or anchored, to withstand the test pressures without movement."

Please refer to the Code for further details

Pressure testing results form part of the As-Constructed Package required to gain a Connection Certificate from Queensland Urban Utilities.

As per the SEQ Code, pressure testing is required for all water mains and property service connections.

We recognise that pressure testing may not be practical in the following scenarios:
•    live work cut ins to existing water mains where damage to the existing network could occur
•    small diameter property service connections (<=DN63PE)  that are installed in isolation (i.e. without associated water main).
The RPEQ Engineer can assess practicality of pressure testing in these scenarios and certify the connection in the absence of pressure testing.

This decision should be assessed using engineering judgement, taking into consideration location of the works, site constraints, number of pipe joints, proposed fittings, existing and proposed arrangement, risks and associated consequence of pipe leaks or failure.

The extent of pressure testing should be determined during the design phase and incorporated on the RPEQ certified design drawings, including any temporary fittings necessary to facilitate the testing (e.g. temporary hydrants and drilled and tapped blank flanges).

If you choose to not perform pressure testing and this has been marked on the design, please tick “Not required” in Section B of the As-Constructed Package Certification Form. Note: An updated version of this form will be provided soon.

Queensland Urban Utilities reserves the right to impose pressure testing. 

Queensland Urban Utilities Water Netserv Plan - Connections Policy
V1.2-2016

12.1 - Connection Criteria

When a new development (or a modification to an existing development) reuses an existing connection, this may be considered an ‘alteration’ to our network (even if there is no physical change to Queensland Urban Utilities' infrastructure).

A Water Approval is required for any alteration to our network.

An alteration can include, but is not limited to:

  • change in the development type as specified in the Water Netserv Plan – Charges Schedule
  • change in the demand unit, for example an increase in square metres GFA for commercial/industrial development
  • material change in the property's consumption of water or discharge of sewage
  • material change in the property’s sewage discharge quality.

For more details please refer to the Water Netserv Plan - Connections Policy (12.1.3).

The RPEQ Engineer should assess the suitability of the existing property connection to be reused.

  • For sewer connection assessment refer to Table 4.3 of the SEQ Sewerage Code.
  • For water connection assessment engage a hydraulic consultant to confirm connection is sufficiently sized to meet the needs of the development.

Reuse of an existing connection may incur infrastructure charges as per the Water Netserv Plan – Charges Schedule.

Supporting information
Queensland Urban Utilities Water Netserv Plan - Connections Policy
V1.2-2016

  • 13.0 - Connection Criteria (Staged Water Connection)
  • 15.5 - Apply for a Staged Water Connection
Refer to the Connections Policy

We acknowledge that our Applications Portal does not provide an easy system for managing Staged Water Approvals. Until an improvement is delivered, please proceed with either of the following scenarios. Thank you for your patience.

If you are unsure of how to proceed, please confirm development intentions with your client.
Scenario 1: You intend to plan seal the entire development at once.
Application process: Submit one Water Approval application for all stages of development via a Property Service or Network Connection application (not a Staged Water Approval).

Cost: You will receive one Decision Notice, including base application fees and associated Minor or Major Works charges.

Benefit: Management of only one application, Decision Notice and related fees. However, you will not be able to plan seal progressively (e.g. seal an individual stage). All infrastructure charges must be paid and all connection works must be completed for the entire development before a Queensland Urban Utilities Connection Certificate will be issued. A Connection Certificate is a requirement of council plan sealing.
Scenario 2: You intend to plan seal the development in stages.
Application process: Submit a Staged Water Approval application for the first stage(s) of the development. The first staged application must include a staging plan setting out the proposed stages of connection and a servicing strategy with a sufficient level of detail to identify the demand for each stage and proposed servicing solution and infrastructure required.

We will assess the entire development, but issue a Decision Notice for the first stage(s) of development only.
You will then need to submit further Staged Water Approval applications for subsequent stages to suit the sequencing of your construction and plan sealing development assessment requirements. You will receive a separate Decision Notice for each approved stage.

Cost: You will incur application fees and associated Minor or Major Works charges for each stage of development.  

Benefit: The flexibility to pay infrastructure charges and complete works progressively to meet your development requirements.

SEQ Sewerage Code - Part 1 (Planning and Design), Clause 5.5.2
V1.2-2016
For servicing the whole of a multiple occupancy lot (strata title, community title, dual occupancy) a single point of connection shall be provided.

SEQ Water Supply Code - Part 1 (Planning and Design), Clause 5.11.12
V1.1-2015
Community title schemes shall be provided with a single service to the property boundary.

Refer to the Code

Note: SEQ Water Supply Code, Clause 5.11.12 refers to water services for domestic supply purposes only.

Property service requirements
Sewer
- Single point of connection as per SEQ Sewerage Code. Exceptions can be granted if topographical constraints exist.
Water - As per the October 2015 Schedule of Amendments to the SEQ Water Supply Code, in certain circumstances additional property services are permitted for private fire fighting (refer to 8.8.12, 8.8.8).

Metering requirements
Refer to Queensland Urban Utilities' Submetering Policy  and Fire Hydrant & Hose Reel Metering Arrangements for guidance on metering.

Lodge a Design Variation to request a variation to the Code or Queensland Urban Utilities guidelines.

SEQ Sewerage Code - Part 1 (Planning and Design), Clause 5.8 (a)
V1.2-2016

10 metres for DN100 (DN110PE) property connection sewers (may be increased to up to 25 metres for connections in brownfield developments at the discretion of the relevant SEQ-SP).

Refer to the Code

Exceptions for brownfield developments

Queensland Urban Utilities may permit DN100 sewer property connections up to 25 metres in length when the location of the existing sewer network may cause increased construction costs or significant work on neighbouring properties.

Brownfield developments should comply with the SEQ Code where feasible, however we will grant exceptions on a case by case basis. Lodge a Design Variation in the Applications Portal to request this exception.

Exceptions will not be granted for greenfield developments.

SEQ Water Supply Code - Part 1 (Planning and Design), Clause 7.9
V1.1-2015

Generally, a fully restrained PE pipe system does not require the use of anchorage. The restrained system may be provided through welded joints, restrained couplings or flanges. Designers shall assess the needs for anchorage i.e. ends of mains or transition between different pipe materials. The transition areas shall be restrained with concrete thrust restraints.

Pipework that is subject to thrust forces must have appropriate thrust restraints (e.g. thrust blocks). For example, PE pipework must have a ductile iron thrust connector with in-line thrust restraint where it transitions to non-PE pipe material.

The purpose is to restrain unbalanced forces and prevent joint separation caused by internal pressure and shortening/lengthening due to temperature changes and Poissons effect.

Refer to the Code

Thrust block design
Thrust blocks must be designed for a minimum test pressure of 1200kPa. Refer to standard drawings SEQ-WAT-1104-1 (Detail A: In-line connection), 1205-1, 1206-1, 1207-1, 1208-1.

Note: The standard drawings do not apply in soils with less than 50kPa bearing capacity. A geotechnical assessment and individual design is required for these soils.

Design drawings must show the thrust force and direction (refer SEQ-WAT-1101-2).

Important consideration: Where excavation is proposed in the vicinity of existing live pipelines, the effect of removing soil behind unrestrained fittings/thrust blocks must be considered. Alternative thrust restraint must be implemented (or the live pipelines temporarily shut-down) to ensure work health and safety risks are addressed.

SEQ Water Supply Code - Part 1 (Planning and Design)
V1.1-2015

 
Clause 8.8. Also refer to clause 8.6.2, 8.8.3, 8.8.5, 8.8.8-11.

Refer to the Code

The position of hydrants on water mains shall comply with the following requirements:

Location

  • Every property shall have a hydrant within 40m of its front boundary (this requirement can be relaxed for urban residential infill developments where the water mains already exist) (Clause 8.8.8 (a)).
  • In urban areas, every property, other than those that are part of a community title scheme, shall have a hydrant within 90m of the furthest point of any existing, proposed, or future Class 1 buildings, measured along the street to the property entrance and around the perimeter of the building (where this requirement cannot be met from hydrants on Queensland Urban Utilities mains in public streets, a private fire main must be provided on the property) (Clause 8.8.8 (b)).
  • Hydrants shall be installed at crests, low points and other points for operational purposes (Clause 8.8.8 (c)) - refer to additional requirements below.

Spacing

  • In urban areas, hydrants shall be installed at a maximum spacing of 80m (Clause 8.8.8 (d)).
  • In rural areas, hydrants shall be installed at a maximum spacing of 240 m (Clause 8.8.8 (e)).

Design considerations for operational purposes

  • At high points on reticulation mains to release air during charging, to allow air to enter the main when dewatering and for manual release of any build-up of air (Clause 8.8.10).
  • Adjacent to scours at low points for water saving purposes (Clause 8.6.2, 8.8.10).
  • To facilitate flushing/swabbing of each section of water main (Clause 8.8.3).
  • A minimum of one hydrant is required between two stop valves (Clause 8.8.3).
  • At ends of mains adjacent to scours (Clause 8.8.11).

NOTE:

  • Hydrant requirements as stated in the SEQ Code are for Queensland Urban Utilities' purposes, they are not intended to supplant building fire fighting provisions. Refer to State Planning Policy requirements for building fire fighting provisions.
  • Fire protection within community title scheme developments shall comply with the State Planning Policy requirements.
  • Hydrants shall be located in line (+/- 200 mm) with the side real property boundary (Clause 8.8.9).
  • Hydrants shall not be located under driveways (Clause 8.8.9).
  • Hydrant requirements apply to reticulation mains <=DN300.

Lodge a Design Variation to request a variation to the Code or Queensland Urban Utilities guidelines.