For more than two decades, municipalities across South Africa’s West Coast District grappled with a mounting waste crisis: small, scattered landfill sites, many of them unlined, overfilled, and poorly controlled, were becoming both environmental liabilities and financial burdens.

The regionalisation of waste disposal, long promoted by national and provincial government, has now reached a significant milestone with the completion and commissioning of the Weskus Regional Landfill, a flagship infrastructure project that demonstrates how inter-municipal collaboration, technical excellence, and strategic governance can converge to deliver sustainable waste solutions.

The imperative for regionalisation

The West Coast District Municipality (WCDM) spans five local municipalities: Swartland, Saldanha Bay, Bergrivier, Cederberg and Matzikama. By the late 1990s, it was evident that many of these municipalities could no longer sustain their local disposal sites. Facilities lacked sufficient airspace, proper liners, and leachate control; several posed direct risks to groundwater and nearby communities. In 1997, the WCDM initiated an assessment of landfill capacity and environmental compliance across the region. Following municipal amalgamations in 2000, this evolved into a District Waste Disposal Strategy, the foundation for what would become one of South Africa’s most advanced regional landfill developments.

The logic behind regionalisation was straightforward: consolidate multiple non-compliant local dump sites into a single engineered landfill facility, operated to national standards and supported by robust quality assurance and environmental management systems. Section 84 of the Municipal Structures Act (Act 117 of 1998) formally assigned district municipalities the function of establishing and operating shared waste disposal facilities, while local municipalities retained responsibility for collection, diversion, and transport.

This framework aims to rationalise infrastructure and reduce pollution risk. Yet, putting the principle into practice required years of technical studies, environmental approvals, political alignment, and financial coordination, culminating in a project that took more than twenty years to realise.

From strategy to site: Two decades of development

After evaluating eight disposal scenarios in 2001, Cederberg and Matzikama chose the scenario with a regional landfill as its most cost-effective and environmentally sustainable option. The analysis demonstrated that although regionalisation increases transport costs, these are offset by economies of scale: the capital and operational costs of a single, engineered site are shared over a greater waste tonnage, lowering the overall cost per tonne. In 2025 values, for example, Cederberg’s additional transport cost of R1,219.41 per tonne was more than compensated by combined savings of R2,104.27 in disposal capital and operating costs, a net saving of R884.86 per tonne.

The site selection process began with negative mapping based on the Department of Water Affairs and Forestry’s Minimum Requirements for Waste Disposal by Landfill (DWAF, 2005). Areas with “fatal flaws”, such as proximity to aquifers, steep slopes, or sensitive ecological zones, were eliminated. The remaining “windows” of potential land were then assessed through field visits and environmental screening.

Four candidate sites were shortlisted within the Cederberg and Matzikama municipal boundaries. Following extensive Environmental Impact Assessment (EIA) procedures, including specialist studies on hydrology, geotechnics, visual impact, and air quality, Site C, located on Farm Vaderlandsche Rietkuil No. 308 near Vredendal, was confirmed as the most suitable. The site’s history as a decommissioned gypsum mine offered favourable geotechnical conditions and sufficient land availability. On 10 March 2014, the Western Cape Department of Environmental Affairs issued a Class B Waste Management Licence, setting a statutory commencement deadline for March 2024.

Overcoming administrative and political hurdles

Inter-municipal co-ordination proved one of the project’s most significant challenges. Differing priorities, budget cycles, and procurement frameworks initially delayed progress. The breakthrough came in 2022, when both the Cederberg and Matzikama Councils formally resolved to participate in the regional facility. The WCDM Council followed with final approval in early 2023, unlocking the procurement and construction phases.

This cooperative governance model, underpinned by sustained technical engagement, now stands as an example of how multi-tier government can successfully deliver shared environmental infrastructure.

The final design, completed in 2021 by JPCE (Pty) Ltd, incorporated all requirements of the National Norms and Standards for Disposal of Waste to Landfill (GN R636 of 2013). The facility was designed as a Class B general waste landfill, equipped with a composite containment liner, leachate management system, stormwater controls, and supporting infrastructure to ensure regulatory compliance and operational efficiency.

Key design features included:

• Basal Liner System – A composite liner comprising a geosynthetic clay liner (GCL) replacing locally inadequate clays, overlain by a 1.5 mm high-density polyethylene (HDPE) geomembrane, a geotextile protection layer, and a stone leachate drainage layer.
• Leachate Collection and Evaporation – A dual-lined sump and pumping system directing leachate to an evaporation pond designed to contain effluent under all climatic conditions.
• Stormwater Management – Infrastructure to isolate “clean” external runoff from “dirty” internal leachate-affected water, sized for a 1-in-50-year storm event of 24 hours’ duration.
• Access and Control – A 1.1 km asphalt access road from the R27, segmented paving at the weighbridge and gatehouse, and perimeter security fencing.
• Operational Facilities – Administrative buildings, ablution facilities, a weighbridge and data systems for waste tracking, and provision for future waste diversion facilities such as recycling and garden-waste processing areas.

The first disposal cell provides 271,000 m³ of airspace, giving an estimated seven-year lifespan for incoming waste from both municipalities. Subsequent phases will expand capacity in line with projected population growth and waste generation trends.

Construction and quality assurance

A public tender for construction closed in March 2023, with pre-qualification criteria requiring substantial previous experience in geosynthetic liner installation. Work commenced on 8 December 2023 with a 40-week schedule. Construction coincided with one of the wettest and windiest seasons in over a decade, introducing significant logistical challenges: soils became challenging to work with, wind speeds hampered geomembrane welding, and daily adjustments were required to maintain productivity. Despite these setbacks, practical completion was achieved by 31 January 2025, and the project was successfully completed within budget.

Throughout construction, Construction Quality Assurance (CQA) was central. Independent laboratories tested geomembrane properties; on site testing was done on seam weld integrity, and layer thicknesses. Full-time QA inspectors monitored installation to ensure strict adherence to specifications. A comprehensive Construction Completion Report was submitted to the Department of Water and Sanitation (DWS), which approved the operation of the facility through an official Record of Decision (RoD) on 8 July 2025, following a site inspection in April 2025.

Recognising the 2024 amendment to the National Norms and Standards requiring immediate protection of the separation geotextile, the project team requested authorisation to place the pioneering layer of waste immediately after completion. Permission was granted, enabling early commissioning and safeguarding the integrity of the newly installed liner.

Empowering local economies

Beyond its technical achievements, the Weskus Regional Landfill also served as a vehicle for local economic empowerment. The project created 77 direct jobs during construction, including 21 for youth and 4 for women, and generated R13.7 million in local procurement through subcontracting, fuel sourcing, and material supply. The inclusion of a prefabricated wastewater treatment plant, designed locally, further enhanced sustainability by enabling on-site effluent reuse for landscaping.

Importantly, the project recorded no community resistance or disruptions, a testament to effective public participation and transparent communication during the EIA and construction stages.

Financial sustainability

The total project cost of R93.97 million (including VAT) came in R3.27 million under budget, a rare outcome for a capital project of this scale and complexity. Funding was secured through the Development Bank of Southern Africa (DBSA) as a 20-year municipal loan with a two-year repayment holiday, providing breathing space for tariff stabilisation.

Tariff modelling, developed collaboratively with Cederberg and Matzikama municipalities, translated capital and operational costs into monthly household service charges, benchmarked against provincial medians. Even with the inclusion of transport and future rehabilitation costs, the regional model proved both affordable and fiscally responsible.

Commissioning and operations

Operations commenced in May 2025, with Matzikama Municipality delivering the first waste loads using its existing collection vehicles. Cederberg Municipality also started to use the facility, and full access will follow upon completion of its transfer infrastructure. The operational contract, awarded through competitive tender process, requires the operator to maintain compliance with licence conditions, ensure data accuracy via the weighbridge system, and implement progressive cell development under WCDM oversight.

Contract performance is managed through monthly technical meetings and third-party certification of payments, ensuring transparency and accountability in ongoing operations.

Delivering on governance and sustainability

The success of the Weskus Regional Landfill project is reflected not only in its engineering and environmental outcomes but also in the governance that enabled its delivery. The West Coast District Municipality has achieved clean audits for 14 consecutive years, the most of any district municipality in South Africa, and the landfill project reinforces that legacy of administrative discipline and regulatory compliance.

The project aligns fully with South Africa’s waste management hierarchy, where avoidance and diversion remain priorities, but residual waste must still be safely contained. By consolidating numerous non-compliant local sites into one engineered facility, the region has substantially reduced its environmental footprint and established a long-term safety net for waste that cannot be diverted or treated through other technologies.

Lessons for future regionalisation

The Weskus Regional Landfill demonstrates that the regionalisation of waste disposal, when approached strategically, offers measurable technical, economic, and environmental advantages.

Key lessons include:

• Early inter-municipal alignment: long-term planning and shared commitment are essential to overcome jurisdictional and political barriers.
• Adaptive design: anticipating regulatory changes, such as the transition from the Environment Conservation Act to the National Environmental Management: Waste Act, ensures future compliance and project continuity.
• Integrated CQA: Full-time quality assurance oversight is indispensable for ensuring liner integrity and regulatory approval.
• Community partnership: Transparent communication and local participation mitigate social risk and foster public ownership.
• Sound financial structuring: Aligning loan terms, tariff models, and affordability analyses ensures sustainability beyond construction.

The commissioning of the Weskus Regional Landfill marks the culmination of more than twenty years of planning and persistence. It is not merely a disposal site; it is a regional governance achievement, a technical benchmark, and a demonstration of how well-managed infrastructure can support environmental protection and community development simultaneously.

In the years ahead, the facility will continue to evolve, incorporating recycling and diversion infrastructure to further reduce landfill dependency. But its core purpose remains unchanged: to provide a safe, compliant, and sustainable repository for the waste that cannot yet be eliminated.

As the authors observe, “Regionalisation is not only about efficiency, but also about resilience, accountability, and stewardship.”

The Weskus project proves that when these principles are embedded from the outset, sustainable waste management becomes not just an aspiration but an attainable reality.

Adapted from an article by Chris Koch, Jan Palm and Reon Pienaar