The Northern Borefields Stage 4 Project – Wellhead Transfer Station

Client:

BHP

Location:

Carrapateena

As part of BHP’s Carrapateena Operation, D&S Resources successfully delivered the Northern Borefields Stage 4 Project, strengthening critical raw water infrastructure to support increased site throughput and long-term operational reliability. Delivered in partnership with BHP, this project highlights our capability to execute large-scale, turnkey pipeline and water infrastructure works in remote mining environments.

The Northern Borefields Stage 4 Project - Wellhead Transfer Station

The project involved the construction of a new wellhead transfer station and the installation of approximately 34.5 km of duplicated HDPE raw water pipeline, tying into the existing Carrapateena processing plant raw water dam. This infrastructure forms a vital component of the site’s water supply network and future production growth.

Scope of Work

D&S Resources’ scope encompassed the end-to-end delivery of pipeline and associated infrastructure works, including design coordination, construction, testing, and integration with existing assets.

Key activities included:

Fast-fusion welded HDPE pipeline installation across a ~34.5 km alignment
Multiple road, creek, and pastoral crossings
Installation of scour pits and air relief valve tie-ins to maintain consistent flow rates
Pigging operations, tie-ins, and full hydrostatic testing
Integration with existing Carrapateena processing plant infrastructure

Project Delivery

Executed in a remote and environmentally sensitive location, the project required detailed planning, disciplined safety and quality management, and close coordination with stakeholders to maintain continuity of site operations.

Leveraging D&S Resources’ strong fleet of specialised in-house equipment and experienced project teams, the works were delivered efficiently and cost-effectively while meeting stringent performance requirements.

Safety & Performance

The project was completed with an outstanding safety outcome, recording zero Lost Time Injuries (LTIs) across nearly 27,000 man-hours. This result reflects D&S Resources’ strong safety culture and commitment to quality execution on high-risk, high-value mining infrastructure projects.

Project Outcome

The Northern Borefields Stage 4 Project provides BHP with a robust and reliable raw water supply solution, supporting ongoing and future operations at Carrapateena. D&S Resources is proud to support BHP in delivering critical water infrastructure that underpins sustainable mining operations.

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