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2. Utility location - Wikipedia

   en.wikipedia.org/wiki/Utility_location

   Yellow spray paint indicating below-street gas utility line (New York City, 2007) Telecommunication cable location marking Colored flags for utility locating Permanent water pipeline markers in Switzerland. Utility color codes are used to identify existing underground utilities in construction areas, to protect them from damage during ...

3. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   A leak appearing within an analytic region (a rule added to the camera) is immediately analyzed for its attributes, including thermal temperature, size, and behaviour (e.g. spraying, pooling, spilling). When a leak is determined to be valid based on set parameters, an alarm notification with leak video is generated and sent to a monitoring station.

4. Electrical liner integrity survey - Wikipedia

   en.wikipedia.org/wiki/Electrical_liner_integrity...

   Since the arc testing method is not dependent on water making good contact through the leak, it is more sensitive and comparatively easy to perform in most types of liner construction (ponds, Landfills, tanks etc.)than the water-based methods. The minimum sensitivity of the arc testing bare geomembrane liner integrity method is a pinhole leak.

5. What are leaking underground storage tanks and how are ... - AOL

   www.aol.com/news/leaking-underground-storage...

   Roughly 81 million people live within a quarter-mile of an underground storage tank that's experienced at least one leak, based on the latest EPA data. Most tanks were made of steel in the mid ...

6. Ground-penetrating radar - Wikipedia

   en.wikipedia.org/wiki/Ground-penetrating_radar

   Borehole radars utilizing GPR are used to map the structures from a borehole in underground mining applications. Modern directional borehole radar systems are able to produce three-dimensional images from measurements in a single borehole. [8] One of the other main applications for ground-penetrating radars is for locating underground utilities.

7. Water detector - Wikipedia

   en.wikipedia.org/wiki/Water_detector

   Current digital water leak detection systems can locate multiple water leaks to within 1 meter resolution over a complex network of cables running several kilometers. This functionality reduces the downtime and potential damage caused by inaccurate reporting that was common with older analogue based systems.