Finding an underground water supply must be done before the drilling of a well can begin. Drilling a well is common when working with undeveloped property where a piped water supply or a spring cannot be reached. Digging a well is completed by boring a hole into the earth until the underground water table is reached. Piping is then lowered down to the water table. A pumping system is installed to bring the water to the surface. Although the digging of the well is usually done by professionals, finding the water supply can be done by just about anyone.
Study your property to see how the land flows. Water will usually pool and puddle in depressions and valleys on the property, that are closer to the underground water table. Situating your well in these areas will be much easier and less expensive, since they are closer to the underground water supply and will not require as much digging to reach the water table.
Examine the plant life on your property. Lush, deep-green plant life is a sign of plentiful moisture. If your area does not receive rain regularly and the plant life still remains lush and green, this is a sign that there is water close to their root systems. Water-loving plants such as willows, reeds and canes growing on your property are also a good sign that water is close underground.
Contacting a dowser to come and dowse your property is an option when searching for an underground water source. Also known as water witches, dowsers use a "Y" shaped willow branch to search for underground water. It is said that the willow branch will vibrate or be drawn downward toward underground water sources. Although the reliability of using this style of searching for water is debatable, water has been found using this method.