We're putting utility services (water, electrical, sewer, telco) in trenches to and on my land.
Before we bury everything, what records should I make? Maybe I should take some photographs or draw some maps. (Accurate mapping is difficult, though!)
EDIT: I learned today that the utility company is only responsible for the stuff in they ground that they own. If you have a sub-panel for electricity to a garage, for example, they won't mark that. Same for a water line to a spigot in your garden. So, it's particularly important to keep your own records, etc.
ALSO: Even though code doesn't require it here, I'm going to put a strip of CAUTION tape a few inches under the soil as we fill in the trench.