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Risk assessments for specific activities: environmental permits

Guidance on additional risk assessments you will need to do for an environmental permit and information about the H1 software tool.

Risk assessments for your environmental permit

If you’re applying for a permit, read the overall guidance on risk assessments for your environmental permit.

There are also additional risk assessments you must do depending on:

  • the activity your bespoke permit relates to
  • where substances are released or discharged into the environment

Help to assess risks for your specific activity

You can use the H1 risk assessment tool to complete and submit any assessment of risks for your specific activity, except for assessing risks for intensive farming.

The tool:

  • includes instructions on how to develop risk assessments
  • does calculations required for your risk assessment and screens out insignificant releases
  • presents data so that the Environment Agency can assess it properly

The H1 risk assessment tool and the guidance on how to use it is hosted on the Atmospheric Dispersion Modelling Liaison Committee (ADMLC) website on behalf of the UK environmental regulators.

If you do not want to use this tool you can:

  • follow the steps in the risk assessment guides
  • use other resources such as emission modelling software – you may be charged for this

You can use the J5 infiltration worksheet to help you with your assessment for groundwater risk assessments for treated sewage discharges to infiltration systems.

Air emissions

Groundwater

Surface water pollution

Waste recovery or disposal

Published 2 February 2016
Last updated 21 November 2023 + show all updates
  1. Added a link to the updated H1 risk assessment tool.

  2. First published.