--- title: Practical Examples of DMA Issues – Tom Crowder & IWA description: Watch Tom Crowder's IWA webinar on using analytics to reduce non-revenue water and improve utility decision-making. image: https://www.crowderconsult.com/hubfs/IWA%20Webinar%20with%20Tom%20Crowder-1.jpg --- [![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) # Practical Examples of DMA Issues - Tom Crowder and IWA 28 July 2026 ![IWA Webinar with Tom Crowder-2](https://www.crowderconsult.com/hs-fs/hubfs/IWA%20Webinar%20with%20Tom%20Crowder-2.jpg?width=1366&height=768&name=IWA%20Webinar%20with%20Tom%20Crowder-2.jpg) On 24th June, Tom Crowder presented a webinar on behalf of the IWA Water Loss Specialist Group about Practical Examples of DMA Data Issues, highlighting why high-quality data is the foundation of successful leakage management. When it comes to finding leaks, the process starts long before field teams enter the network. It begins with having confidence in the data. During the webinar, Tom explained that before asking "Where is the leak?", water utilities should first ask "Can we trust the data?" Without accurate and reliable data, leakage estimates can be misleading, leading to unnecessary investigations and inefficient use of resources. District Metered Areas (DMAs) are central to monitoring water distribution networks, but they are only effective if the data behind them is accurate. Ensuring a DMA is both available, with valid flow data from all inlet and outlet meters. And operable, where daily and night flow leakage calculations align is essential for making informed operational decisions. Common data quality issues include faulty meters, incorrect DMA boundaries, customer allocation errors, time synchronisation problems and open boundary valves. Identifying and resolving these issues through desktop analysis can often prevent unnecessary field investigations and improve the accuracy of leakage detection. As utilities continue to embrace smart networks and advanced analytics, data quality has never been more important. By prioritising DMA availability and operability, organisations can improve leakage estimates, target investigations more effectively and make better-informed decisions. Tom's webinar provides practical examples of these challenges and demonstrates why trusted data is the key to effective leakage management. Watch the webinar to discover how improving data quality can help and become more confident leakage management decisions. [Practical Examples of DMA Data Issues - Tom Crowder](https://www.youtube.com/watch?v=ltIO0AF6jpI&t=938s) [facebook-f icon](https://www.facebook.com/profile.php?id=100054550176165) [linkedin-in icon](https://www.linkedin.com/company/crowder-consulting/?originalSubdomain=uk) - [Technical Blog](https://www.crowderconsult.com/blog/tag/technical-blog) - [Event](https://www.crowderconsult.com/blog/tag/event) - [Business](https://www.crowderconsult.com/blog/tag/business) - [Social](https://www.crowderconsult.com/blog/tag/social) - [Charity](https://www.crowderconsult.com/blog/tag/charity) see all - [Technical Blog](https://www.crowderconsult.com/blog/tag/technical-blog) - [News](https://www.crowderconsult.com/blog/tag/news) - [Leakage Detection](https://www.crowderconsult.com/blog/tag/leakage-detection) - [Education](https://www.crowderconsult.com/blog/tag/education) - [Netbase Water Network Management System](https://www.crowderconsult.com/blog/tag/netbase-water-network-management-system) - [Case Study](https://www.crowderconsult.com/blog/tag/case-study) - [Hydraulic Modelling Of Water Networks](https://www.crowderconsult.com/blog/tag/hydraulic-modelling-of-water-networks) - [Activities](https://www.crowderconsult.com/blog/tag/activities) - [Leakage Management In District Areas](https://www.crowderconsult.com/blog/tag/leakage-management-in-district-areas) - [Non Revenue Water Reduction Programmes](https://www.crowderconsult.com/blog/tag/non-revenue-water-reduction-programmes) - [Trunk Mains Investigations and Leakage Surveys](https://www.crowderconsult.com/blog/tag/trunk-mains-investigations-and-leakage-surveys) ### Latest Articles [Securing Critical Water Infrastructure: Netbase Platform and Consultancy Services Achieve ISO 27001 Certification](https://www.crowderconsult.com/blog/water-network-management-iso-certification) [Practical Examples of DMA Issues - Tom Crowder and IWA](https://www.crowderconsult.com/blog/iwa-webinar-with-tom-crowder) [Crowder Attended NWG Innovation Festival](https://www.crowderconsult.com/blog/crowder-attended-nwg-innovation-festival) [Crowder Weekend Away 2026](https://www.crowderconsult.com/blog/crowder-weekend-away) [How Are Underground Water Leaks Detected?](https://www.crowderconsult.com/blog/leak-detection-equipment-for-underground-leaks) ### Subscribe to our blog This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. 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