How deep of a line can you find? It depends on several factors, but depth of a line is rarely an issue for electromagnetic locating. For GPR, 10-12 feet is usually the maximum depth depending on soil conditions and size of the target.
The power isn’t on, can you still locate the electric line? Yes. Because we use a signal that we put on the line ourselves, we don’t need a line to be energized or in service in order to find it.
Can you find non-metallic, non-conductive utilities and conduits? Yes. We are able to find PVC, clay, rubber, concrete, and other materials utilizing a wire or GPR technology.
Can you find my water well line? Yes. If the water line itself is metallic, often relatively easily. If the water line itself is plastic what we actually locate is the electric line for the well pump. They are usually laid together in the same trench and aren’t usually more that a couple feet apart. We will ask you a couple of questions to try to ascertain whether or not it’s likely that they’re separated. If they are separated, it’s often possible for us to use GPR in order to locate the actual water line if it is made of a non-conductive material such as PVC or rubber.
Can you find my septic tank? Yes. We use GPR in order to find septic tanks and leach fields. We can also push a wire through the system to verify its location.
Do I still need to wait for Dig Safe? Yes. You are always required by law to contact Dig Safe prior to any digging or excavating and only the utility companies and their contract locators can fulfill your legal Dig Safe requirement. Subterra will identify and mark all private utilities and our portion can be completed at any time, but it is often beneficial to have Subterra locate after your site has been “Dig Safed”, this way we can best account for all public and private lines in your work zone.
Can you tell me if there are any underground storage tanks on my property? Yes. Through the use of GPR we can search for USTs. If we find a suspected UST we can also do a 3D grid search in order to provide more conclusive results.
Do you use x-ray for concrete inspection? No, we use a small hand-held GPR by GSSI called the StructureScan Mini HR 3D GPR. This allows us to do concrete inspection in an active work area (x-ray require evacuating the site), and provides high-resolution results immediately.
My electrician says that I have a power fault somewhere, can you help? Yes, we can locate where the power fault is so that you don’t have replace the whole line. This may require some coordination with your electrician.
I’ve lost water pressure and I think I may have a water leak, are you able to find it? Yes. We are often able to utilize several types of locating equipment to identify the origin of the water leak to save you time and money in repairs while preserving our precious water resources.
Can you find my spring well? Yes. If there is access to the well pump controller we should be able to trace our signal right back to the spring even if the spring is very far away from the house.
Do I need to be on-site for the locate? No, but it is often very helpful. Before each locate we gather as much information as we can and it can be beneficial to have you on-site with us. We will work with you and any subcontractors to coordinate the locate for a mutual time that works best for everyone. Often times we need access into a basement, out buildings, or other structures to perform our job.