Waste landfills, green roofs, ponds: geomembrane and plate integrity survey Research of mineral reserves, soil structure: determination of gravel deposits, gravel-sand-clay layers, geological layers Investigation of subsurface contamination: soil pollution, subsurface water contamination Survey of river embankments (flood control): determination of cracks, tracks Determination of ground-water flow’s direction Geophysical survey of drainage basins Other surveys (geoelectrical survey on lakes, archaeological research, survey with environmental purpose)