Before scheduling a private utility markout service for your site, try to find related utility maps whenever possible. They might provide important clues for utility locators to locate some underground utilities. Of course, there are many utilities buried without any records. Also, if there are records, they could be inaccurate or outdated. But it doesn't mean they are not useful. Underground utility locators work like detectives: not every clue is useful and some might be even misleading, but some clues could lead to important discoveries. For the best result of underground utility locating, try to help your utility locator by feeding him/her with clues such as utility maps, historical documents, or even telltales about the site. During an underground utility…