Beyond The Borehole: Why Groundwater Will Define Africa’s Water Future

The defining water challenge of the twenty-first century is no longer simply about building bigger dams or laying more pipelines. As prolonged droughts, floods, rising temperatures, changing rainfall patterns and rapid urbanisation strain conventional water resources, governments are rethinking water security. That conversation increasingly leads beneath our feet.

For decades, groundwater was treated as an emergency resource for rural communities or a temporary drought buffer. Today, science and global best practice show it is a strategic asset for sustainable development and long-term water security. Unlocking its potential requires moving beyond the idea that groundwater begins and ends with drilling a borehole.
A borehole is merely an access point. True groundwater security encompasses hydrogeological science, aquifer protection, managed aquifer recharge, water quality management, digital monitoring, environmental stewardship, institutional capability and governance. Groundwater is a strategic national asset whose value depends on how wisely it is understood, protected and managed.
This shift has been evident in recent policy dialogues. South Africa’s G20 Presidency, the Presidential Water and Sanitation Indaba, the AU-AIP G20 Water Investment Summit, the AWSISA Africa and Global South Water and Sanitation Dialogue, and the SADC Groundwater Conference all concluded that groundwater must move from the margins to the centre of national, continental and global water strategies.
Climate change is fundamentally a water crisis. Rising temperatures, erratic rainfall and catchment degradation are disrupting water cycles. Groundwater offers one of the most dependable buffers against variability. Unlike surface reservoirs, aquifers have minimal evaporation losses, making them especially valuable in semi-arid Southern Africa. They sustain baseflows, support agriculture and ecosystems, and provide reliable supplies during droughts. For millions of Africans, it is already the primary drinking water source, yet it remains one of the continent’s least understood and protected resources.
South Africa’s experience underscores the need for change. The Day Zero crisis in Cape Town, recurring provincial droughts, KwaZulu-Natal floods and pressure on ageing infrastructure highlight the risks of over-reliance on surface water. A diversified approach integrating groundwater is essential.
The G20 Leaders’ Declaration recognised water’s centrality to adaptation, food security, energy and sustainable development. The SADC Groundwater Conference stressed the importance of managing shared aquifers for regional stability. These align with South Africa’s domestic priorities.
The Presidential Water and Sanitation Indaba highlighted challenges of governance, infrastructure, institutional capacity and municipal performance, calling for stronger Catchment Management Agencies, accelerated delivery, research and technical capacity. The AU-AIP G20 Water Investment Summit positioned water as a strategic economic investment underpinning growth, industry and health. The AWSISA Dialogue emphasised equity, noting that rural communities, informal settlements, women and youth bear the heaviest burden of water insecurity.
Together, these platforms signal a profound shift: water security demands integrated planning, capable institutions, investment, innovation and partnerships that treat water as the foundation of development, sustainability and dignity.
South Africa’s emerging groundwater approach exemplifies this. The focus is shifting from simply drilling boreholes to building resilient, decentralised systems that serve communities and strengthen national security.
South Africa’s groundwater strategy also advances its commitment to Sustainable Development Goal 6 (SDG 6), which calls for universal access to safe water and sanitation and the sustainable management of water resources by 2030. While the country has made significant progress in expanding access to drinking water since 1994 and has strengthened integrated water resource management through progressive legislation and institutional reforms, challenges remain, particularly in municipal infrastructure, water quality, non-revenue water and service reliability.

Groundwater offers a practical pathway to accelerate progress by extending services to underserved communities, strengthening climate resilience and protecting water resources for future generations. Investing in groundwater is therefore not only a national priority but also an important contribution to South Africa’s international development commitments.

The recent intervention in Thembisile Hani Local Municipality during Nelson Mandela Month illustrates the new thinking. Beyond handing over boreholes, it commissioned a decentralised water treatment plant that purifies groundwater of natural impurities to deliver high-quality drinking water.
This sets a new benchmark: every South African, regardless of location, deserves water of comparable quality, safety and reliability. Decentralised treatment technologies now enable rural, peri-urban and informal communities to receive standards matching or exceeding many urban supplies. It affirms water as a matter of equality, dignity and constitutional rights under Section 27.

The project, part of the Presidential Water Crisis Committee’s efforts through the Department of Water and Sanitation and AWSISA members, shows how coordinated leadership can deliver solutions. Launched during Nelson Mandela Month, it honours his legacy by restoring dignity and enabling children to attend school rather than fetch water, supporting clinics and improving daily life.

This marks the start of a broader national programme to roll out decentralised treatment plants in unserved and underserved areas. These systems complement bulk schemes by offering faster, locally managed solutions and reducing reliance on vulnerable centralised infrastructure.
Internationally, successful countries strengthen security through diversified “Water Mix” portfolios. Large dams and transfers remain vital, but must be supplemented by groundwater, managed aquifer recharge, wastewater reuse, rainwater harvesting, ecosystem restoration, decentralised treatment, seawater desalination and acid mine drainage reclamation.
Each element plays a distinct role: groundwater for drought reliability, recharge for storage with low evaporation, reuse for productive applications, harvesting for local resilience, restoration for natural storage, desalination for coastal needs, and AMD treatment to turn liabilities into assets. The Department of Water and Sanitation’s Unserved Communities Access Acceleration Programme embodies this integration, combining groundwater with spring protection, harvesting, infrastructure rehab and reticulation for faster relief.
Scaling these innovations requires scientific excellence, institutional strength and regional cooperation. Advances in groundwater science are opening opportunities for development, adaptation and food security across Africa.
Global examples demonstrate the power of governance and innovation. Australia leads in managed aquifer recharge using stormwater and recycled water. California reformed unsustainable abstraction through basin governance and monitoring. Namibia has secured supplies under extreme conditions through development, reuse and technology.
South Africa has strong foundations: the Water Research Commission, CSIR, universities, water boards and hydrogeologists offer world-class expertise in groundwater, recharge, reuse, digital management and planning. Emerging tools such as satellite monitoring, GIS, remote sensing, AI, machine learning and predictive modelling enable better aquifer understanding, risk detection and protection. These must reach municipalities, water boards and Catchment Management Agencies, matched by investment in people and institutions.
Groundwater supports climate-smart agriculture by enabling efficient irrigation, precision techniques and drought-resilient crops, while recharge stores surplus for future use thus advancing both water and food security.
Many Southern African aquifers are transboundary, including the Ramotswa, Stampriet, Lubombo and Limpopo systems. The SADC Groundwater Conference highlighted the need for shared governance, harmonised monitoring and data sharing to turn groundwater into a driver of regional integration rather than competition.
Lasting security requires broad partnerships across government, research, private sector, development finance, civil society and communities. South Africa, with its scientific capability, is well-placed to lead globally, combining its water-scarce experience with commitments to dignity and justice.

History will judge us by results. This means safe water in every village and township, resilient farmers, capable municipalities, protected ecosystems and dignity for all.

The future lies in an integrated strategy that combines groundwater, surface water, recharge, reuse, desalination, harvesting, decentralised systems, restoration and digital innovation. That is the true meaning of moving beyond the borehole. Beyond every borehole lies an aquifer. Beyond every aquifer lies a community. Beyond every community lies an economy. And beyond every economy lies the shared future of a nation.
The science exists. Technologies are advancing. Partnerships are forming. Policy is clear. What remains is urgent, collective action. By seizing this moment, South Africa can strengthen its own water security while helping define a model of sustainable water management for Africa and the Global South. This model must be founded on innovation, cooperation and the belief that safe, reliable water underpins human dignity, growth and prosperity.
Groundwater has always been beneath our feet. The opportunity before us is to place it at the heart of our national development agenda, transforming an often-overlooked resource into a foundation for water security, economic growth, environmental sustainability and human dignity. If we act with vision, urgency and collective purpose, we can secure a water-resilient future for this generation and those yet to come.