This is an example of locating and finding the exact profile depth of a Utility. First, the Location is found by running several passes at a 45-degree angle once we have mapped the location and path of the utility in question we can begin the depth profile pass. The distortion on the left-hand side of the screen is what we call ringing, in this case, it is caused by the metal hole cover (marked in green on the left) we went over at the very start of the Depth profiling pass. The drain vent (marked in green on the right) on the right side of the depth profile pass was made of plastic so the ringing effect did not occur. The Drain line is marked in blue and we can see the exact depth. This starts at 4 feet 10 inches at the point of the drain and runs down to 7 feet 2 inches where it meets the manhole. This is important to know because there is no problem running another utility in this same area such as Gas, Electric, or Fiber as these run 18 to 36 inches below the surface well within the safety zone of avoiding this drain pipe. Some times you have no choice but to cross utilities. Knowing the exact depth across the whole line can be a great help.