I'm not an irrigation contractor so forgive my ignorance here. If an irrigation system is properly winterized, there shouldn't be water in the pipes correct? I have a plow customer that I don't maintain the lawns\landscaping. We are having some major water issues at the site that are creating lots of ice in the parking lot. I assumed it was due to the heavy snow pack, then heavy rains after our recent 20" storm. However, the problems are persisting in areas where the snow pack has completely melted away. So on a whim I unscrewed a couple of the sprinkler heads to see what was doing. There was water in the pipes. The pipes are only buried about 4"-6" down & run along the curb lines, so they definitely felt the affects of freeze\thaw issues from the rough, cold winter we are having. I suspect that there are breaks in this pipe, since I found standing water in the pipes. But I didn't think there should be water in those pipes. My thoughts were, that if there was water in those pipes, shouldn't it be under some pressure? Or, if there are breaks in the pipe closer to the water source, maybe there wouldn't be pressure still at the sprinkler heads I checked? All of the soils in our area are fully saturated at this point, but this site has almost running water in these trouble spots, so I suspect there is something more going on. And the problems seem to run along the curb lines on 2 sides of one of the parking lots. Any chance that it could be the sprinkler system leaking? This system hasn't been used for the past few years, low maintenance lawn commercial site.