A comprehensive suite of monitoring is conducted at the ENRMF as specified in the site permits. The monitoring is conducted at numerous locations around and within the site for physical, chemical and radiological parameters at a range of frequencies.  The distribution of the locations where monitoring is undertaken is shown here.
Thousands of data points are generated which are reported regularly to the Environment Agency and are publically available.  However much of this data needs certain technical knowledge to fully understand.  To provide more accessible information so that the community can understand the impact of the site on the environment we present on the web pages linked below key selected data in respect of groundwater quality, air quality, dust and asbestos together with radioactivity. For each selected parameter the reason for selection and its interpretation are explained.  The data is for the most recent 12 months of data submitted to the Environment Agency and will be refreshed every quarter.

Interpretation of monitoring data
There are a number of means of interpreting monitoring data:

  • Compare against background data before the operation started
  • Compare against historic data
  • Compare upstream with downstream/upwind with downwind
  • Look for trends in the data by using graphical presentation
  • Compare against trigger levels (Trigger levels are set at a value lower than that which would cause harm but indicate action should be taken to investigate further)
  • Compare against quality standards such as the Drinking Water Standard
  • Consider combinations of parameters for example elevated chloride and ammoniacal nitrogen together could indicate the presence of leachate from biodegradable wastes but alone suggest some other source of contamination.

The interpretation of monitoring data is rarely straightforward.    Many of the parameters monitored are naturally present in the environment for example elevated carbon dioxide can indicate the presence of landfill gas but is also generated by the degradation of vegetation and is present in limestone. The contribution of measured chemical species generated as a result of surrounding current and historic activities such as agriculture and industry need to be taken into account.  The addition of de-icing salt to roads for example can cause elevated concentrations of chloride in nearby boreholes. While samples are taken and analysed using strict quality protocols cross contamination of samples and equipment can occur affecting results. 

Interpretation therefore must take into account the natural environment, surrounding activities and the monitoring history.  Outlier results are treated with caution and re-analysis or re-sampling is undertaken to confirm the result.

Monitoring data
The following monitoring data is presented:

 Surface water data is not presented as currently there is no discharge of surface water from the site.

If you have any queries relating to this information or would like to be kept informed of developments at ENRMF please contact us at or telephone us on 01904 654989 to be added to our register of stakeholders.