Development Connection Methodology Requirements
This document has been produced to assist Contractors in creating an acceptable connection methodology
which details all the information required by the City for the connection application to the City’s water and
sewerage systems.
Separate methodologies are required for water and sewer connections. This document shows examples of
water and sewer information combined in the one methodology as an example only. Individual
methodologies only will be accepted as submitted methodologies.
Where multiple connections are required for water or sewer works, each connection/location shall be clearly
defined in the description of works, material requirements and the construction methodology sections
accordingly.
It is the Contractors responsibility to determine the actual location, size and material of the existing
infrastructure, and the location of other infrastructure between the connection point on the main to the
boundary, where each connection will be completed. The Contractor must determine if the connection is
capable of being installed as per the design, including how it may impact on surrounding infrastructure eg
thrust blocks are not permitted to be poured against other infrastructure without a special design. This shall
be done prior to the connection methodology being written to ensure the correct equipment, materials and
staff qualifications are listed correctly and available on site for the works.
Where the Contractor fails to undertake this preliminary investigation work and the work cannot be
completed on site in accordance with the accepted Developer Connection Methodology or design, the
connection may be cancelled by the City’s Representative. The connection will need to be rescheduled after
the design has been reassessed by the Consultant for the Development and the City of Gold Coast. The
Contractor is liable for any costs associated with this cancellation or change to design.
--------------------------------------------INSTRUCTIONS
1. The following shall be used as a base for all connection methodologies. The City will not accept any
methodologies which are not in the following format.
2. The Contractor shall include their company logo on the top of the methodology
3. The Contractor shall update the methodology date and revision number each time the methodology is
updated.
4. The Contractor must complete all relevant sections with the information required for each individual
connection. Each connection point shall be clearly delineated.
5. Reference to all of the relevant SEQ standard drawings must be included within the description of
works and for each main step in the Construction Methodology section.
6. All thrust blocks etc must be included in the Construction Methodology section where applicable.
7. The Contractor shall estimate a timeframe for each step in the Construction Methodology section.
This shall be used to review the overall time expected for each connection and whether the
connection(s) can be completed within the permissible outage timeframe of 5 hours where applicable.
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Developer Connection Methodology for Water/Sewer Connections
Project Name: Twisted Gum Estate Stage 4
Location: 672 Lost Road, Notuwory
OPW Number: 2014001522
Contractor: Jimbob Constructions Pty Ltd
Methodology date and revision number: 24/06/11 Rev 04
Description of Works
Twisted Gum Estate Stage 4 requires 2 water connections and 1 sewer connections to the existing GCW
networks.
WATER – 2 x 150mm end of line connections at Lot 20 (Connection A) and Lot 45 (Connection B)on Pier
Street.
SEWER – 1 x 150mm type X sewer connection to existing MH 15/03 at Lot 57 (Connection C) on Greenwich
Street. Internal drop to finish on top of existing benching.
This methodology details the installation methods for the above mentioned connections. Preliminary
investigation work has been completed prior to this methodology being compiled to ensure the work can be
undertaken accordingly.
All construction and material shall conform to the current version of the SEQ Water Supply & Sewerage D&C
Codes.
Design Drawings: 22865/653 W01/B, 22865/653 S02/C & 22865/653 S01/F.
GCW Standard Water Drawings: SEQ-WAT-1303-1.
GCW Standard Sewer Drawings: SEQ-SEW-1303-1, 1303-2, 1304-1, 1305-1 and 1306-1.
Responsibilities and Contact Details
• Jason Highcourt (Director) 0435 216 584 - Approval of SWMSs and construction methodology
• Lyle Cruise (Project Manager) – 0418 552 975 - Development of construction methodology
• Kevin Munchkin (Site Supervisor) 0402 953 211 – Ensure SWMSs and construction methodology are
implemented and followed during the connection works
NOTE GCW Representatives are only on site for auditing purposes of the connection only.
Plant and Equipment Requirements
The following list of plant & equipment will be used for the connection:
• 8 Tonne Excavator
• Tipper Truck
• Wacker packer, vibe plate (compaction)
• Dumpy level & pipe laser
• Trench box 3.5m long x 2.5m high
• Dewatering system including environmental settlement tank
• Concrete coring equipment (Concrete Cutters Pty Ltd)
Labourer Requirements
The following list of Labour will be used for the connection:
• Site Supervisor – Kevin Munchkin - Confined Space
• Pipelayer/Labourer – Richard Paw - Confined Space
• Pipelayer/Labourer – Justin Dawson - Confined Space
• Excavator Operator – Steve Klegg
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Sub-Contractor - Traffic Controllers x 2 (Traffic Control Wizards)
Sub-Contractor - Concrete Corer (Concrete Cutters Pty Ltd)
All persons on site will hold current Queensland White Cards (or previously known blue card). All specialised
work such as confined space and asbestos removal will only be completed by certified persons – these are
listed above accordingly.
Material Requirements
All material which will be used for all connections shall conform to the current version of the SEQ Water
Supply and Sewerage D&C Code (Accepted Civil IPAM list).
Connection A
• 2 x 150mm Gibault Joints
• 150mm PVC-M pipe PN16 Series 2 (blue)
• Detectable marker tape (blue)
• Bedding material 5-7mm crushed rock
Connection B
• 2 x 150mm Gibault Joints
• 150mm PVC-M pipe PN16 Series 2 (blue)
• Detectable marker tape (blue)
• Bedding material 5-7mm crushed rock
Connection C
• 150mm uPVC pipe SN8
• 1 x 150mm x 600mm long uPVC rocker pipet Sp-Sc
• 1 x 150 DI inspection bend (with plastic inner to accept pipe)
• 2 x Drop pipe clips and anchors
• 1m x Hydrotite
• Megapoxy
• 1 x 150mm uPVC drop pipe (1.5m)
• 1 x 150 uPVC SWJ 90 bend
• Detectable marker tape (cream)
• Bedding material 5-7mm crushed rock
• 2:1 sand–cement mortar
Precautionary items due to unforseen issues
• Not applicable for these connections. Existing pipe sizes and materials for the water work have been
confirmed on site, and there are no unforseen issues expected.
WHS Requirements
a. Safe Work Method Statements
The following lists all SWMSs to be used during the connection work:
• High Risk Work SWMS
• Excavation/Trenching/Backfilling SWMS
• Pipe Laying SWMS
• Confined Space Work SWMS
• Manhole Construction SWMS
• Concrete Coring SWMS (Concrete Cutters Pty Ltd)
b. Personal Protection Equipment
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The following lists all PPE to be used during the connection work:
• Safety Boots
• Long Pants & Sleeve Hi Vis Clothing
• Gloves
• Safety Glasses
• Hard Hat
• Harness and Tripod (for confined space work)
c. Traffic Control
Traffic control shall be provided for the duration of the construction work (for all connections) within
the road reserve. One traffic lane shall be closed during works and pedestrians shall be diverted onto
the opposite verge. The proposed Traffic Guidance Scheme (TGS) has been submitted with this
Methodology as part of the connection application for review.
GCCC and QPS permits shall be obtained once the connection application has been granted
“approval in principle” and shall be submitted prior to approval to connect.
All traffic control devices shall be installed onsite by certified personnel and controllers are required to
be trained and certified.
Network Isolation Requirements
GCW have been to site and investigated the shutdown requirements. The existing water main can be
isolated by closing the SV at the end of the existing mains. No properties will be affected. The existing
sewer MH has low flows and therefore the connection work can be completed with no isolation required.
All network isolations will be planned and completed by GCW.
Constraints
The following lists all constraints expected to be encountered during the connection work:
• Traffic (vehicular/pedestrian)
• Ground water
• Acid Sulphate Soil
• Other services/structures
• Outage time restraints
Construction Methodology
The following steps outline the sequence/techniques to be used at Connection A and B.
• Traffic and pedestrian controls to be implemented as per TGS including delineation of work site (30
mins)
• Confirm location of existing services – Dials etc. (30 mins)
• GCW to isolate end of line using existing end of line SV (SV to be tagged by GCW). (10 mins)
• Excavate at end of existing end of line and end of new water pipe to 150mm below the bottom of
pipe. (45 mins)
• Carefully remove concrete thrust block and end cap from existing end of line. Refer SEQ-WAT-13031 for existing arrangement. (30 mins)
• Connect pipes using gibault joint and backfill and compact over pipe. (10 mins)
• GCW to open SV and flush new pipework accordingly. (SV tag to be removed by GCW). (30 mins)
• Reinstate the area including turfing the verge to match the MH cover level. (30 mins)
• Remove traffic controls. (20 mins)
The following steps outline the sequence/techniques to be used at Connection C.
• Traffic and pedestrian controls to be implemented as per TGS including delineation of work site (30
mins)
• Confirm location of existing services – Dials etc. (30 mins)
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Confined space entry required for all work within the existing MH. Only confined space trained
personnel shall enter the MH. Follow SWMS, complete air monitoring and entry permit. (15 mins)
Install temporary ply sheet over existing benching within MH 15/03 to ensure debris does not enter
benching. Flow in benching is considered low flow by GCW therefore no plug or bypass required. (10
mins)
Excavate around existing MH 15/03 to 300mm below the bottom of new sewer pipe to allow concrete
corer (Concrete Cutters Pty Ltd) to work from outside of MH. (45 mins)
Install trench box and dewatering system, treat acid sulphate soil and groundwater according to
Management Plan. (45 mins)
Concrete Cutters Pty Ltd to core 200mm hole for penetration pipe at correct level for new pipe. (20
mins)
Install type X drop as per SEQ-SEW-1303-1 including inspection bend, rocker pipe, hydrophilic seal
and megapoxy. (30 mins)
Modify existing benching to suit new type x drop as per SEQ-SEW-1306-1. (20 mins)
Connect new sewer pipe to rocker pie and backfill and compact over pipe. (10 mins)
Reinstate the area including turfing the verge to match the MH cover level. (30 mins)
Remove traffic controls. (20 mins)
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