Report after report prove that fracking is no more likely to cause groundwater contamination than a conventional, vertical well. Of course there are risks with any type of well drilled, so precautions and safety is always a high concern.
Page 45: Casing leaks are potential in any type well.
Page 47: Fractures are only several hundred feet long and thousands of feet below ground water.
Page 49: Regulatory officials from eight shale bearing states find zero groundwater contamination.
Page 52: No link between earthquakes and fracking