People have been searching for groundwater for thousands of years. Of course, we’ve come a long way since the days of water diviners and the use of forked twigs! There are some more modern methods that are used these days to more accurately determine the presence of groundwater so well diggers don’t start digging in the wrong place, wasting time, energy and resources.
Let’s take a quick look at today’s most common methods of groundwater detection in California.
Two main methods
Today there are two main methods used to locate aquifers with much greater precision and efficiency. These are:
Aquifers are most commonly found between layers of rock. All rocks are able to conduct a certain amount of electricity, with that conductivity varying based on the type of the rock, its compactness and the presence of permeable or impermeable structures. Scientists can measure the conductivity or resistivity (the opposite of conductivity) as a means of determining where aquifers are located beneath rock layers.
There are a couple ways to do this:
These groundwater detection methods can all help people to avoid some extremely costly errors in groundwater investigation, saving both time and money. However, hydrogeophysical analysis is still costly, and is typically only realistic for large-scale water extraction facilities. In other cases, different types of groundwater detection methods might be needed. A person who is building a cabin in the woods, for example, should not expect hydrogeophysical analysis to be used to determine the best spot to place his well.
This provides you with some general background information about today’s most common methods of groundwater detection in California. Contact National Groundwater Surveyor Inc. today for more information.
From single family home sites to large agricultural wells, call National Groundwater Surveyor at 800-980-7429.
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