Just curious, as it has not happened to me (yet). I know that they are often only burried a few inches deep, thus you can cut through one with just a shovel or bed edger. I know if its not marked, then your off the hook, (usually) but lets say it is marked but burried just under the sod and you cut through it. Who do you call? Who makes the repair and most importantly, who pays the bill? Thanks!