--- title: Thames Water Leakage Detection Case Study - Crowder Consulting description: Crowder Consulting, a leading leak detection company, collaborated with Thames Water to implement advanced DMA strategies, achieving substantial water leakage reduction through systematic analysis and innovative technologies. image: https://www.crowderconsult.com/hubfs/TW%20case%20study%20leak%20reduction%20%282%29.webp --- [![Crowder Consulting Logo](https://www.crowderconsult.com/hs-fs/hubfs/Crowder%20Consulting%20Logo.png?width=253&height=226&name=Crowder%20Consulting%20Logo.png "Crowder Consulting Logo")](https://www.crowderconsult.com/) - [0151 647 7772](tel:0151%20647%207772) - [enquiries@crowderconsult.co.uk](mailto:enquiries@crowderconsult.co.uk) - About - [Mission & Vision](https://www.crowderconsult.com/mission-vision) - [Management Team](https://www.crowderconsult.com/management-team) - [Contact Us](https://www.crowderconsult.com/contact-us) - [Blog & News](https://www.crowderconsult.com/blog) - [Testimonials](https://www.crowderconsult.com/testimonials) - [Careers](https://www.crowderconsult.com/careers) - [Case Studies](https://www.crowderconsult.com/case-studies) - Netbase & Digital Services - [Netbase Water Network Management System](https://www.crowderconsult.com/netbase-water-network-management-system) - [Netbase Digital Services Platform](https://www.crowderconsult.com/netbase-digital-services-platform) - [NetOps - Smart Water Network Application](https://www.crowderconsult.com/netops-smart-water-network-application) - [NetAlytics - Smart Advanced Water Network Analytics](https://www.crowderconsult.com/netalytics-smart-advanced-water-network-analytics) - [View All Services](https://www.crowderconsult.com/netbase-digital-services-solutions) - Consultancy - [Leakage Management in District Areas (DMAs)](https://www.crowderconsult.com/leakage-management-in-district-areas) - [Non Revenue Water Reduction Programmes](https://www.crowderconsult.com/non-revenue-water-reduction-programmes) - [Upstream Water Network / Trunk Mains](https://www.crowderconsult.com/upstream-water-network) - [Hydraulic Modelling of water networks](https://www.crowderconsult.com/hydraulic-modelling-of-water-networks) - [Pressure Reduction & Optimisation](https://www.crowderconsult.com/pressure-reduction-and-optimisation) - [Specialist network studies and analyses](https://www.crowderconsult.com/specialist-network-studies-and-analyses) - [View All Services](https://www.crowderconsult.com/consultancy-services) - Data & Data Science - [Tactical Smart Meter Data Solutions](https://www.crowderconsult.com/tactical-smart-meter-data-solutions) - [Connecting to Corporate & Cloud Systems Data](https://www.crowderconsult.com/connecting-to-corporate-and-cloud-systems-data) - [Data validation and visualisation](https://www.crowderconsult.com/data-validation-and-visualisation) - [View All Services](https://www.crowderconsult.com/data-science-services) - Field/Leakage - [Leakage Detection](https://www.crowderconsult.com/leakage-detection) - [Trunk mains investigations and leakage surveys](https://www.crowderconsult.com/trunk-mains-investigations-and-leakage-surveys) - [Hydraulic Modelling Field Tests](https://www.crowderconsult.com/hydraulic-modelling-field-tests) - [DMA Sectorisation](https://www.crowderconsult.com/dma-sectorisation) - [Meter Verification Surveys](https://www.crowderconsult.com/meter-verification-surveys) - [Water Efficiency initiatives](https://www.crowderconsult.com/water-efficiency-initiatives) - [View All Services](https://www.crowderconsult.com/field-leakage-services) - Training - [Water Network Management](https://www.crowderconsult.com/water-network-management) - [Production Planning](https://www.crowderconsult.com/production-planning) - [Leak Detection](https://www.crowderconsult.com/leak-detection) - [Netbase](https://www.crowderconsult.com/netbase) - [National Water Hygiene Card & SHEA Water](https://www.crowderconsult.com/national-water-hygiene-card-shea-water) - [NetOps Training](https://www.crowderconsult.com/netops-training) - [View All Services](https://www.crowderconsult.com/training) # Thames Water Leakage Detection Case Study ## Thames Water Leakage Detection Case Study 3 February 2025 ## DMA Leakage Detection![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXcGr2IsNtozVJRiqNKWA3vsdq8qAb501Fca5bAzLaIfidDbB-Blvjd_EnrLVXihwxgUfMkZ-9qATw4jnmnHZ3nAZItmUKD91Ig8N1ME2wIm1ju4pL6K7Rh8doh7poEHYyS34xEvAao_ACxFmvrP4Mg?key=rz37LlD2gBt-wzhvCkXaicSN) Crowder was awarded a main service provider to [Thames Water](https://www.thameswater.co.uk/) on the Leakage Detection Framework in 2019. We gathered a team of 14 which consisted of Subject Matter Experts, a Project Coordinator, Project Engineers, Project Manager/Team Manager and Project Technicians out on site. At that time, Crowder had delivered 9 leakage reduction projects which had reduced leakage by 10Ml/d and we were aiming for a further 7Ml/d reduction in 2021. Success on the project has been achieved through applying an exceptional high level of technical expertise and experience in all aspects of leakage analysis and leakage investigation processes. We follow a focused and systematic methodology to investigate and resolve the high leakage and unaccounted for water issues on each project. Each project has its own initiatives. We design and setup LCAs within DMAs, utilising existing metering. Carry out meter verifications, build and calibrate models and operate valves as part of the setup process. To ensure DMAs are hydraulically tight, we conduct pressure zero tests. ![TW-case-study-1-1-1](https://www.crowderconsult.com/hs-fs/hubfs/Crowder_Consulting_Theme_Sep2023/Images/blog/TW-case-study-1-1-1.webp?width=342&height=624&name=TW-case-study-1-1-1.webp) ![TW-case-study-2-1](https://www.crowderconsult.com/hs-fs/hubfs/Crowder_Consulting_Theme_Sep2023/Images/blog/TW-case-study-2-1.webp?width=281&height=625&name=TW-case-study-2-1.webp)![TW-case-study-3-2](https://www.crowderconsult.com/hs-fs/hubfs/Crowder_Consulting_Theme_Sep2023/Images/blog/TW-case-study-3-2.webp?width=317&height=625&name=TW-case-study-3-2.webp) Investigating confirmed leakage volumes in localised areas of interest lead to more intensive investigations resulting in hard-to-find leaks being detected and provide evidence for prioritisation of repairs. We deploy correlating noise loggers to locate leaks in areas of identified interest. We also have a range of loggers such as Gutterman ZoneScans, Enigmas, Enigma HyQs. Our team of engineers review the points of interest generated from the correlations and plan the follow up investigation work. Ground microphones, listening sticks and if required further correlations will be carried out to confirm and pinpoint the leaks to an accurate location. Leaks are marked up and raised in Thames Work Management system for scheduling and progress tracking. [The reduction of leakage in DMAs](https://www.crowderconsult.com/leakage-management-in-district-areas)may require several survey cycles of detection and repair to reduce leakage which we carry out until satisfactory reductions are achieved. 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