In this episode of The Nexus ReGen Podcast, host Will Rundle is joined by Ben Winch, a leading voice in sustainable soil reuse and Associate Director at RSK Geosciences.

Together, they explore what it takes to build a circular soil economy in construction — one where excess materials are no longer treated as waste, but as valuable, reusable resources.

🔍 Topics include:

• What an MMP (Material Management Plan) really is — and why timing is everything
• The commercial and environmental benefits of treating soil as a resource
• Common pitfalls that lead to avoidable landfill costs
• How early engagement, good documentation, and collaboration between sites can unlock huge savings
• Why platforms like Soil Link are key to enabling cross-project material sharing at scale

This is a must-listen for developers, contractors, ground workers and sustainability professionals looking to stay ahead of regulation, reduce cost, and improve environmental outcomes.

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In this episode of The Nexus ReGen Podcast, host Will Rundle sits down with Geraint Rowland, Group Environmental Director at Costain, to discuss how main contractors can transform material procurement and waste management in the construction industry.

With over 17 years at Costain, Geraint brings deep expertise in sustainability, infrastructure, and environmental impact reduction. He shares insights on circular economy strategies, innovative material reuse, and Costain’s efforts to drive carbon reductions across major infrastructure projects.

Soil Link and Costain are leading the way in sustainable construction, Will and Geraint discuss how the industry can accelerate progress towards a circular economy.

Key topics in this episode:
✔️ The evolution of sustainability in construction and why main contractors must adapt
✔️ How Costain saved 200 tonnes of CO₂e on the A30 project using stent, a byproduct from China clay extraction
✔️ The challenges of balancing material imports and exports to reduce waste and transport emissions
✔️ How Costain’s Low Carbon Materials Mandate is reshaping procurement decisions
✔️ The role of data, AI, and digital tools like Nexus ReGen in optimizing material reuse
✔️ Why industry-wide collaboration and supply chain partnerships are key to achieving net-zero goals

📍 Learn more about Costain: costain.com
📍 Discover Nexus ReGen’s impact: nexusregen.com

🔊 Listen now to explore the future of sustainable infrastructure and innovative material management!

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In this episode ofThe Nexus ReGen Podcast, host Will Rundle, co-founder of Nexus ReGen, sits down with James Hill, Chief Strategy Officer at Dunton Environmental, to discuss one of the biggest challenges facing the construction industry today: how to balance cost efficiency with sustainability in hazardous waste management.

With over 20 years of experience in geoenvironmental services and waste management, James shares insights into contaminated land remediation, off-site soil treatment, and the role of innovation and digitalisation in reducing landfill dependency. They explore:

✅ The impact of landfill tax increases and how companies can minimize costs
✅ The importance of early planning in waste management to optimize sustainability
✅ How soil treatment hubs and circular economy principles are reshaping the industry
✅ The role of AI and digital tools, like Dunton’s Classified AI, in streamlining waste classification

James also shares a global perspective on best practices in waste management and what the UK can learn from European and Scandinavian policies.

Tune in for a deep dive into the future of waste management, practical strategies for construction professionals, and how companies can stay ahead in an evolving regulatory landscape.

Find out more:

• Dunton Environmental: www.duntonenvironmental.com
• Soil Link: www.nexusregen.com

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