Standing water on the parking lot surface is not a good thing. It will promote early deterioration and failure. We can employ different strategies depending on the depth and total number of puddles. Rather than try to “re-grade” the surface, it is usually best to try to harness what gravity is already doing and capture water at the existing low spots and deliver it to an existing storm drainage system. This can be done by placement of new catch basins or trench drains at the surface. Berms are also productive in “steering” water away from problem areas to begin with.