Pretoria, Gauteng – The industrial hum of mining operations, a familiar backdrop to life in and around Pretoria, is now accompanied by a growing conversation about a less visible, but critically important, aspect of the industry: tailings dams. These colossal structures, holding the finely ground waste rock from mineral extraction, are under renewed scrutiny as the mining sector grapples with the upcoming compliance deadlines for the Global Industry Standard on Tailings Management (GISTM).
While large-scale mining may not be directly within the city limits, several significant operations in the wider Gauteng province, whose environmental footprints and potential risks could impact Pretoria, are facing pressure to upgrade their facilities. The catastrophic dam failures in other parts of the world have underscored the devastating human and environmental consequences of inadequate tailings management, prompting global calls for stricter standards.
“The safety of these structures is not just an abstract concept; it directly impacts the water quality, air quality, and even the structural integrity of land in surrounding communities,” explains Dr. Naledi Mokoena, an environmental scientist at the University of Pretoria. “For residents in places like Centurion or even parts of Pretoria West, who might be downstream from these facilities, the potential for a dam breach is a very real, albeit hopefully remote, concern.”
The GISTM, launched in 2020, sets a new benchmark for the safe management of tailings facilities, covering everything from governance and risk management to emergency preparedness and independent oversight. Mining companies are now racing to assess their existing dams and implement necessary upgrades to meet these stringent requirements. This includes comprehensive site characterisation, robust design, and continuous monitoring.
Engineering expertise is paramount in this transition. Firms specialising in geotechnical and civil engineering play a crucial role in ensuring the stability and environmental integrity of these structures. For instance, Knight Piésold, a global consulting firm with a strong presence in South Africa, is actively involved in providing geotechnical, hydrological, and environmental engineering services to mining clients, helping them design, build, and manage tailings facilities in compliance with international best practices, including GISTM.
“The GISTM represents a paradigm shift,” says Mr. Thabo Ndlovu, a community liaison officer for an environmental advocacy group in Tshwane. “It moves beyond just regulatory compliance to a commitment to zero harm. We need assurances that companies operating near our city are not just ticking boxes, but genuinely investing in the long-term safety of these dams.”
The Department of Mineral Resources and Energy (DMRE) has indicated its commitment to enforcing the GISTM, although specific local implementation details are still being refined. Industry bodies, alongside independent experts, are collaborating to navigate the complexities of retrofitting older facilities to meet new standards.
For those seeking to understand the landscape of tailings engineering and dam safety in South Africa, resources like tailingsengineering.co.za offer valuable insights into the firms and expertise available in the sector. As the GISTM deadline approaches, the spotlight on Pretoria’s neighbouring mining operations will only intensify, demanding transparency, accountability, and unwavering commitment to public safety and environmental protection.