Restrict shale gas fracking to 600m from water supplies, says study

Restrict shale gas fracking to 600m from water supplies, says study, Researchers recommend ‘absolute minimum’ safe zone of 600m between fracking and aquifers by Press Association, April 25, 2012, The Guardian
Controversial “fracking” for shale gas should only take place at least 600 metres down from aquifers used for water supplies, scientists said on Wednesday. A new study revealed the process…caused fractures running upwards and downwards through the ground of up to 588 metres from their source.