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You will need to call Ground Penetrating Radar Systems Inc. they have a technician provided in every state. this number can be found at the Related Link. The GPRS company will come out and locate the various underground utilities on the property in question even if it is private property. It will be marked with water based paint and flags of different colors to distinguish the different ones apart. Yellow for natural gas, red for power, blue for water, green for sewer, orange for communications o include telephone and cable T.V. The tolerance levels are within a few inches on each side of their mark and on depth.

Ground Penetrating Radar Systems Inc. uses Ground Penetrating Radar AND Radio Detection to locate the underground utilities. GPRS's use of both technologies allows for an extremely thorough investigation. The Radio Detection can only detect metal utilities or plastic with a tracer wire, and GPR can detect anything in the soil within the electromagnetic frequency parameters which are for every foot of soil penetration the target must be an inch in diameter. Therefore both technologies used together provide the most thorough investigation available.

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10y ago
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17y ago

Its called line location you clip a transmitted signal to the lines inside and trace them with a hand unit following that signal.

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Q: How do you locate underground utilities?
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