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Delhi Jal Board uses GIS mapping

Delhi Jal Board (DJB) in India has prepared a digital map of the 9000-km — and still expanding — water pipelines of the Capital with the help of the GIS system. All the information is now available at the click of a mouse. Each pipe’s diameter and length and the population of the area it’s supplying is now available at a glance. The map means knowledge without which the DJB has been groping in the dark whether it’s leakages, supply demands or other things.

Everything will be there at a glance and the system would become easier to control. Leakages, water levels and similar data would be easier to have with the map. The DJB is all set to have a complete digital map of its sewer lines too, soon. Over 50 per cent of the sewer lines have been mapped. The GIS map of the water lines, prepared with the assistance of the National Informatics Centre — took three years to complete. The NIC wound up the project early this year. The mapping of the 6000-km sewer lines is expected to be completed by early next year. The NIC’s role has been kept to the minimum with the DJB working on its own using the base map provided by NIC. Of the 6000 km of pipes, over 91 kms are the oldest in the Capital, having been laid as early as in 1936 by the British.