Isoflavones are found in small amounts in a number of legumes, grains, and vegetables, but soybeans are by far the most concentrated source of isoflavones in the human diet (104, 105) .
Standing water under a house is usually the result of only two things; either a leaking water line, or from surface water drainage around the house. If it was from a leaking water line, the leak would have to be substantial, and you would hear running water in the house.
Since the air above the water is warmer than in the water, this causes the water to rise up to the warmth until it gets cooled by the night, or from rain. This is what created movement and currents in the ocean from the sun.