Groundwater activity exclusions from environmental permits

Find out if your groundwater discharges are extremely low risk so don’t need an environmental permit or exemption.



Use this publication to find out about groundwater activity exclusions for:

  • accidents and natural causes
  • very minor discharges – also called ‘de minimis’
  • risks to human health or the environment
  • disproportionate cost for land contamination
Published 14 March 2017
Last updated 11 July 2018 + show all updates
  1. Added a new de minimis exclusion (section 2.7). It explains when you can discharge groundwater that meets drinking water quality standards onto ground.
  2. Changes to 'Very minor discharges exclusion – also called de minimis’ (section 2) to explain that you need to assess whether a ‘class of case’ exclusion applies.
  3. First published.