The water industry in England and Wales operates on a carefully structured regulatory cycle. Asset Management Period 8 (AMP8), running from April 2025 to March 2030, represents Ofwat's latest framework for water company investment and performance.
As AMP8 continues to progress, we look back on the history of London’s water infrastructure and assess the biggest challenges the industry faces today.
In the summer of 1858, London faced a crisis that would reshape Britain’s infrastructure forever. The “Great Stink“, the smell of human waste and industrial run-off engulfed London’s streets, forcing Parliament to take unprecedented action, leading to one of the most ambitious engineering projects of the Victorian era.
Today, as water companies commission extensive surveys for treatment works across Britain, we stand at a similar crossroads. The Asset Management Period 8 (AMP8) represents the largest investment in water infrastructure since the Victorian age, with £104 billion allocated to transform our water systems for the future.
A Legacy Below: The Victorian Foundation
Hidden beneath Britain’s cities lies an engineering marvel that has served us for over 150 years. In London alone, 2,000 kilometres of brick tunnels and 130 kilometres of main sewers – many the size of railway tunnels (about 3.7m in diameter, the same as deep-level London underground tunnels) – continue to carry waste from our homes. This network, engineered by Sir Joseph Bazalgette in the mid-19th century, didn’t just solve the sanitation crisis of its day; it revolutionised public health and urban development.
The Victorian system’s durability is remarkable, but it was designed for a London of 2 million people. Today, the capital’s population approaches 9 million, and climate change brings new challenges our Victorian predecessors could never have imagined.
The Modern Crisis: Beyond Capacity
The scale of Britain’s water infrastructure challenge is staggering. In England alone, 2,690 megalitres (approximately Olympic-sized swimming pools) of treated water is lost to leaks every day (Gov.uk, 2025). This represents 19% of all treated water lost before reaching consumers, highlighting the urgent need for infrastructure modernisation.
Today’s water infrastructure faces a perfect storm of challenges:
- Population growth pushing systems beyond their designed capacity
- Climate change increasing the frequency and severity of extreme weather events
- Environmental regulations demanding higher standards of water quality
- Aging infrastructure requiring urgent assessment and maintenance
AMP8: A Victorian-Scale Solution for Modern Times
The AMP8, running from 2025 to 2030. This £104 billion investment programme focuses on three critical priorities:
- Complete digitalisation of water infrastructure management
- Proactive prevention of Combined Sewer Overflow (CSO) incidents
- Integration of nature-based solutions for sustainable water management
The scale of this investment echoes the Victorian era’s ambition, but with a crucial difference: today’s solutions must not only solve immediate problems but also address future sustainability challenges.
According to Ofwat, water companies have committed to reducing leakage by 16% between 2020–2025, with an ambitious target of 50% reduction by 2050.
But how will water companies achieve this reduction?
Understanding Your Assets: The Critical Role of Infrastructure Assessment
According to recently published data (datatecnics), the statistics paint a compelling picture:
- 25% of all leakage comes from customer-owned supply pipes
- high leakage regions experience 2.3 times more supply interruptions
In 2023-2024 alone, 44,616 pipe repairs were carried out across England and Wales (Discover Water, 2024), averaging well over 100 bursts per day.
Understanding the challenges posed by water infrastructure assets is key to solving the problem of leakage. We explore 4 key challenges below; concrete integrity, drainage mapping, asbestos management, and ground issues.
Concrete Infrastructure Assessment
Challenge
Water infrastructure relies heavily on concrete structures, from treatment tanks to tunnel linings. These structures face unique degradation challenges due to constant exposure to water, chemicals, and varying environmental conditions. Age-related deterioration, particularly in structures dating back to the early modernisation of our water systems, can compromise structural integrity and operational efficiency.
Solution
Concrete testing and assessment programmes provide crucial insights into structural health. Advanced techniques, including non-destructive testing and detailed chemical analysis, help identify early signs of deterioration, carbonation, and chloride ingress, enabling proactive maintenance strategies before issues become critical.
“In the water sector, where concrete structures face unique challenges from constant exposure to aggressive environments, having independently verified testing methods is crucial.
Our concrete testing ensures our clients receive the highest standard of concrete assessment, enabling them to make informed decisions about their critical infrastructure assets.”
– Andrew Wise, Infrastructure Business Director, Lucion
Drainage Network Mapping
Challenge
Complex underground drainage networks, often combining Victorian and modern systems, can be poorly documented. This lack of accurate mapping creates risks during infrastructure projects and hampers flood prevention planning.
Lack of comprehensive mapping can increase delays in projects when conducting structural surveys and blockage extraction works.
Solution
Comprehensive drainage mapping services, combined with advanced flood screening assessments, provide detailed understanding of existing networks. This integration of historical data with modern surveying techniques creates accurate, actionable insights for flood risk management and infrastructure planning.
Click here to check out a free FLOODScreen Explorer tool and assess individual assets in a couple of clicks.
Confined Space Asbestos Surveys
Challenge
Water treatment facilities and underground infrastructure often contain asbestos-containing materials (ACMs) in hard-to-reach areas. These confined spaces present unique challenges for thorough asbestos surveys, yet require meticulous assessment to ensure worker safety during maintenance and upgrades.
Solution
Lucion’s specially trained surveyors, equipped with both confined space expertise and extensive asbestos knowledge, conduct detailed assessments using advanced sampling techniques. This targeted approach ensures comprehensive ACM identification while maintaining strict safety protocols in challenging environments.
“Having worked with many major water suppliers, including Severn Trent Water, has highlighted the unique challenges of managing asbestos risks in water infrastructure. The combination of confined spaces, complex mechanical systems, and the need for minimal service disruption requires a specially tailored approach.
Our teams have developed specific methodologies that ensure thorough asbestos assessments while maintaining operational efficiency – it’s about protecting both people and service delivery.”
– Paul Lewellyn, Account Manager for Severn Trent Water, Lucion.
Ground Investigation and Geospatial Analysis
Challenge
Water infrastructure projects require detailed understanding of ground conditions, particularly given the complex urban environments where many assets are located. Historical ground data may be incomplete or unreliable, creating risks for infrastructure development and maintenance.
Solution
Working with both Lucion Ground Engineering and Lucion Surveys Ltd, we deliver integrated ground investigation services that combine traditional geotechnical analysis with advanced geospatial mapping. This comprehensive approach provides:
- Detailed subsurface condition analysis
- Ground stability assessments
- Contamination mapping
- 3D visualisation of underground assets
- Integration with existing infrastructure data
“Beneath every water treatment works or pipeline project lies uncertainty – ground conditions, hidden utilities, legacy contamination – and getting it wrong can cause a programme blockage for even the best-designed schemes.
By combining intrusive ground investigation and accredited laboratory testing with advanced geospatial techniques like PAS128 utility surveys, CCTV drainage mapping, and 3D laser scanning, we help water companies de-risk their projects from the outset. It’s about facilitating the flow of high-quality data, giving engineers the confidence to design, build, and maintain infrastructure that will stand the test of time.”
– Dave Cage, GEO Business Development Manager, Lucion.
Looking Ahead: The Next 25 Years
As Britain’s water infrastructure enters a crucial phase of transformation, the lessons of our Victorian predecessors become increasingly relevant. The investment through AMP8 marks just the beginning of a longer journey toward sustainable, resilient water systems. While the Victorians built for capacity, we must build for adaptability.
The path to 2050 demands a delicate balance between maintaining our legacy infrastructure and embracing innovation.
Climate resilience will become increasingly crucial as weather patterns become more extreme. Future infrastructure must not only withstand these challenges but adapt to them, using real-time data and automated systems to manage flow rates, predict maintenance needs, and prevent system overload. This evolution from reactive to predictive management will be key to preventing the kind of crises our Victorian ancestors faced.
The role of technology in this transformation cannot be overstated. Arguably, the most significant change will be in how we view water infrastructure itself – not as a separate system, but as an integral part of our urban ecosystem, working in harmony with natural water cycles and supporting biodiversity.
Water companies, infrastructure managers, and contractors face critical decisions about their assets’ future. The key to navigating these challenges lies in comprehensive assessment and expert guidance.
Ready to Protect Your Water Infrastructure Assets?
Whether you’re planning for AMP8 compliance or need to assess your current infrastructure, our group of companies can help you:
- Conduct thorough concrete integrity assessments
- Create detailed drainage network maps
- Manage asbestos risks in confined spaces
- Deliver comprehensive ground investigations
Contact our team today and start protecting your assets for the future.
