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Still not convinced GPR is the magic bullet for every dig
I spent 8 weeks last summer on a site in Virginia trying to ground truth what ground penetrating radar showed us, and it turned out 60% of the anomalies were just tree roots and old plumbing. We would have saved time by just digging test pits first. Has anyone else had GPR lead them on a wild goose chase like this?
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taylor.amy14d agoTop Commenter
Got a buddy who spent three months chasing a GPR hotspot that turned out to be an old septic tank.
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andrew_rodriguez14d ago
Yeah, been there. A GPR unit is only as good as the person reading the screen. A lot of people forget you gotta look at the whole site, not just what the machine says. Old drain fields and buried trash give off similar signatures to what you'd expect from a grave. Best advice I can give is to cross reference with soil probes and always check historical aerial photos before you commit to digging. Saves you from wasting a whole season on someone's old plumbing.
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