Many of us don’t realize that water conducts electricity. Why is this important? If there is an underground stream going under you house, you are more likely to suffer from chronic fatigue syndrome, sleeplessness, and lethargy. The reason is that your own energy field, which is by nature electromagnetic, is syphoned off by the moving water.
Before buying or building a house, it is a good idea to know about the water table under the surface of the land and the general geology of the area including the watershed!
Good research is good Feng Shui!