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Using ASTERRA (formerly Utilis) satellite image Severn Trent Water(STW) found that productivity was increased, the time to find a leak was significantly reduced, and, the cost per leak found was also lowered/
A first trial was held in Birmingham and achieved a 26% true positive rate of success. True positive is a measure of success; the number of ASTERRA (formerly Utilis) identified sites that have at least one leak when investigated. The second trial was very successful based on a number of performance metrics, and, a great improvement over the first trial.
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