Ground Water Is No Exclusion

The height of the local water table can also affect garage floor paint. The water table is, put very simply (and not entirely correctly), the top of the ground water. If the water table is high, then the ground water sits close to the bottom of your concrete garage floor, which means water is far more likely to soak through. Does your area's soil stay somewhat moist, even when in a drought? Odds are pretty good that the water table sits high.