BHP EP7 Evaporation Pond Olympic Dam

The Challenge

The EP7 evaporation pond at Olympic Dam, covering over 750,000m², required a highly technical, multi-layered geosynthetic lining system to contain tailings from the mine. Given the fast-paced installation schedule, rapid turnaround of Electrical Leak Detection (ELD) reporting was crucial. The extreme environmental conditions of South Australia further added to the complexity of the project.

Our Solution

GeoQ deployed a team of five technicians working on a continuous 2:1 roster to facilitate Electrical Leak Detection behind the lining contractor. Our team meticulously identified leaks and weak points within the geosynthetic system, ensuring repairs were completed before the primary liner was applied. The project required working across vast areas equivalent to the surface area of 600 Olympic-sized swimming pools, all while maintaining stringent compliance with environmental and industry standards.

The Result

The civil contractor was able to close out designated sections in an expedited manner, ensuring seamless progress in the installation of the primary liner. GeoQ’s efficiency and expertise allowed for the timely completion of Electrical Leak Detection, supporting critical infrastructure development for the Olympic Dam mine.

As the largest leak detection company in Australia, GeoQ’s extensive experience from previous successful projects, including EP6, ensured seamless execution on EP7. Our work plays a vital role in protecting groundwater from contamination by heavy metal tailings, reinforcing the mine’s environmental compliance and safeguarding South Australia’s economy. Through precision and diligence, our team once again demonstrated its capability in delivering industry-leading quality assurance in geosynthetic lining projects.

• This project unfolded during the hottest part of the Australian calendar
• The Olympic Dam has massive influence over the SA economy