Land and Groundwater Modelling

You may need land and groundwater modelling for a variety of reasons, such as Environmental Permit or COMAH compliance, to predict the damage from a release to land, or to obtain Planning Permission.

There are several types of land and groundwater modelling which may be carried out, including:

  • Modelling liquid releases to land and groundwater
  • Modelling solid releases (dust, powder) to land
  • Modelling health risks from contaminated land and groundwater
  • Modelling environmental risks from contaminated land and groundwater to water quality in abstracted groundwater (source protection zones) and receiving surface waters

The main program we use for soil and groundwater modelling for environmental purposes is the Environment Agency’s Remedial Targets Worksheet based on the Hydrogeological Risk Assessment for Contaminated Land in R&D Publication 95, Guidance on the Assessment and Monitoring of Natural Attenuation of Contaminants in Groundwater.

We have also created a simple model to take outputs representative of contamination in the groundwater in the EA’s Worksheet, and use them as inputs into streams and rivers (see our Surface Water Modelling page for details, link below).

Modelling solid releases to land is usually only necessary for dusts and powders, which are often modelled using ADMS.

Health risk modelling is carried out using the CLEA model from the Environment Agency.

If you need help with Land and/or Groundwater Modelling and Risk Assessment, contact Janet on 01422 24 22 22 or email Janet.

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Surface Water Modelling

Visit the TTE webpage on Surface Water Modelling.
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