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Underground Detection Surveys are carried out to locate/investigate utility mains that buried underground. The survey involves identifying utility lines for electric manholes, telecommunication manholes, Street Light manholes etc. Nortech carries out the survey technique through radio detection (electromagnetism) to locate these buried utilities.

The radio detection unit (RD 7000+) used by Nortech can locate and automatically estimate depth of pipes, cables and most common used RF markers, allowing for faster and more accurate surveys, even in areas of high level of electrical interference.