2nd CALL locating is an underground line / hazard locating service. Our trained and qualified locators will check for any locatable underground hazards that may be in your work area. Before you do any ground disturbance be sure to have the registered lines marked by having the One Call members notified. Then make a 2nd call to have the remaining unregistered locatable lines marked out. We will also perform a sweep/scan of your work area so you can be safer before you dig.