GEOTECH METHODS

GeoTech uses the latest technology and equipment available to insure the most accurate utility locate.
Electromagnetic methods are the most frequently used techniques to detect underground utilities constructed of electrically conductive materials. The best way to do this is to induce a transmitter signal onto the pipe. This is done by attaching a transmitter to the pipe and following it with a receiver.
If there is no access to the utility, the indirect method is used. A transmitter is placed or walked along the ground surface above the conductor and the signal is induced through the earth into the pipe or cable. Our locating instruments come with both Passive and Active modes. The Passive modes (Power & Radio) give preliminary search capabilities without the use of a transmitter.
There is no single instrument that can locate all types of utilities. It is important to have different instruments to solve locating problems on site. There are many pipes that are made from materials that cannot be detected with conventional methods such as plastic, clay, concrete, and insulated cast iron. Other methods are employed in order to locate these pipes on site. Sonde can be inserted into the line and followed above the ground for location of the nonconductive pipes.
GeoTech uses many different methods to best serve our client’s locating needs on site.