The crossword solution for the term 'well statistic' is 'DEPTH, ' which is a five-letter word. DEPTH is a measurement of how deep something is, usually referring to a body of water or a hole in the ground. It can also refer to the amount of detail or complexity of something. In the context of a well statistic, it would likely refer to the DEPTH of a well, which is an important factor in determining the amount of water that can be extracted from it.