Ground Penetrating Radar, (GPR) is a noninvasive electromagnetic geophysical technique that produces profiles showing a virtual cross-section of soil, sediment and bedrock layers. Can also be used to profile stream and lake bottoms and sandy sub-bottom sediment layers. Works well in electrically-resistive materials such as quartz sand, limestone, sandstone, coal and most igneous and metamorphic rocks. Depth of penetration up to 100 feet in clean dry sand, 300 feet in unweathered granite. Radar is absorbed by clay, most shales, saltwater and other electrically-conductive materials.  Compare X-RAY here.

Applications:

	Use to map soil and sediment thickness and elevation of subsurface interfaces.
	Determine lateral continuity of soil and sediment layers.
	Locate buried man-made objects such as pipes, drums, tanks (UST's) and land-filled trenches.
	Locate rebar, PVC, voids and tension cable locating in concrete.
	Too many to list, click here for more ideas!

Experience includes:

	REBAR, PVC AND POST-TENSION CABLE
	BURIED ASBESTOS PIPING AND TILES
	VOIDS IN SOILS, IN/UNDER CONCRETE SLABS, AND CONCRETE BLOCK WALLS
	UNDERGROUND STORAGE TANKS (UST'S)
	UTILITIES
	LAND FILLS AND DEBRIS FIELDS
	GRAVEYARD AND FORENSIC SEARCHES
	SINKHOLE INVESTIGATIONS
	3-DIMENSIONAL SCANNING/PROCESSING
	GPS INTEGRATION