No pilot trail – no problem: Data Led Remediation in Fractured Bedrock

This webinar presents a case study where a complex legacy hydrocarbon contamination challenge was addressed within fractured bedrock adjacent to sensitive surface water receptors.

Conventional remediation approaches were likely to be slow, inefficient, or pose environmental risk. Instead, a targeted, data‑led remediation strategy was adopted, combining in‑situ thermal remediation with multi‑phase extraction to address residual LNAPL within fracture networks to a reasonable and sustainable extent.

The presentation will focus not on the technology alone, but on how it was applied: using detailed geological and contaminant data to identify discrete treatment zones, adapt extraction and heating horizons, and optimise system performance over time. The project demonstrates how intelligent interpretation of data, phased delivery, and multiple lines of evidence can improve remedial outcomes, reduce energy demand, minimise unnecessary intervention, and achieve regulatory acceptance.

The session will highlight practical lessons for applying remediation technologies proportionately, sustainably, and effectively on complex brownfield sites.

This webinar is free and open to all.

Our speakers

Kasia Borthwick is Managing Director of Remediation Technologies Ltd (RemTech), a specialist remediation contractor operating across the UK. Kasia’s professional background is in contaminated land risk assessment, and she has spent much of her career working at the interface between conceptual site models, regulatory requirements and remediation decision‑making.

Kasia completed environmental engineering degree in Poland and has 20 years’ experience working in the contaminated land sector both in consultancy and remediation contracting. After almost decade of working at consultancies, including Arcadis and EPS, she has decided to make the move into remediation delivery, where she could see and influence the results of the work she had previously only conceived.  For the past three years, she has been Managing Director of RemTech, where she is closely involved in the delivery of larger and more complex remediation projects, working alongside technical teams and consultancy partners.  Having seen great remediation schemes underperform through poor execution in the field, she prides herself in walking the line between the consultant and her field engineers to deliver the best remediation schemes through early engagement, innovative design and project programming. Now based in Ely with her family, she combines leading a growing remediation business with busy everyday life. 

Giles Lock is a Director at Remediation Technologies Ltd (RemTech) with over 30 years’ experience delivering contaminated land and groundwater projects across the UK, Europe and the USA. His career spans consultancy, emergency response and specialist remediation contracting, with particular depth in the oil and gas and petrol retail sectors. Giles played a key role in the recovery works following the Buncefield Oil Terminal explosion in 2005, spending over a year on site and leading the management, containment and disposal of fire water impacted by PFAS from AFFF foams. He has also delivered projects across industrial, pharmaceutical and redevelopment sites for a wide range of public and private sector clients.

Holding degrees in Chemistry and Geology, Giles is known for his practical, delivery focused approach and extensive hands-on experience with in-situ remediation systems. At RemTech, a strong site presence is maintained even at senior level, ensuring technical decisions are closely connected to delivery on the ground and that high standards are consistently achieved. Giles has led hundreds of projects covering pilot testing, design, installation, optimisation, monitoring, regulatory sign off and decommissioning, with expertise in almost all in-situ and ex-situ remediation technologies. Giles spends a lot of time on site mentoring young engineers, problem solving and ensuring RemTech’s standards are kept high. He is an innovative thinker bringing original ideas to complex problems and is a great one to have round the table at the early stages of a potential remediation project, or environmental incident.

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