There is no water on the Moon. Overturning decades of accepted wisdom, NASA confirmed Friday that the LCROSS had kicked up a "significant" amount of water in the permanently shadowed craters near the lunar pole. Washington Post:
This does not mean there is a lake on the moon, or a frozen pond waiting for the first astronaut with skates. It is not clear how much water is present, nor to what extent it is ice or vapor, nor how it mixes with other material in the lunar regolith. Scientists don't know if the water is as abundant at other locations on the moon. But they were surprised by how much they found. They were prepared to find only about 1 percent of what turned up.