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and depth of the object If we see no reflections in an area, is t results might be . q <br /> considered mconc,usive. Tnere could be no reflections because there are no <br />' buried objects or because tae objects were buried deeper than the radar could <br /> penetrate Also, the radar cannot distinguish between buried objects of similar <br /> size or shape Our assumed source of an anomaly should be rafied by a search <br /> of existing documentation cr by excavation. <br /> We can locat , but not all, buried utilities in a given c�_-ea A buried <br /> utility must emit a signal, either a signal transmitted by us or a naturally <br /> occurring signal, to b; detected by our equipment The most common type of <br /> buried utilities not dejected are nonmetal water and sewer lu.s, Other types of <br /> utilities that might not be detected are some communication 11 v,;s and!metal <br /> pipelines that are electrically insulated between Joints. <br /> ! ! N NI <br /> �III <br /> PLS <br /> µ M <br /> I <br /> ! t I I <br /> ! � l <br /> 5 <br /> I <br /> I <br />