Description: Before drilling your water well, call Survey4Water! We serve all of California using the latest technologies for detecting water using both Very Low Frequency (VLF) and Seismoelectirc methods.
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The VLF method is preferred when a property is large and the depth to water is thought to be less than 100 meters. With this method, several long traverses can be done in one day.
The Seismoelectric method is useful to determine, before drilling, which target sites revealed by a VLF survey will yield the most water. This method is also very useful when the property is not large and long VLF transects cannot be run. Several soundings can be done in one day.
THE VLF METHOD can detect conductive or resistive zones at depths up to 100 meters. There are military VLF transmitters around the world operated to communicate with submarines in 5 to30 kilohertz range. The VLF instrument measures the strength of a VLF signal, called the primary field, and compares it to the strength of a secondary field induced by the primary field in conductive bodies at depth. While holding the VLF instrument at a certain compass heading, the operator takes readings every 10 or 20 meter