Conceptualising & Characterising Contaminant Distribution in Soil Top Tips

Issue Date: November 2023

The CL:AIRE “Professional Guidance:  Comparing Soil Contamination Data with a Critical Concentration” publication (v 1.1 February 2021) emphasised the importance of developing, refining and thoroughly understanding the Conceptual Site Model (CSM) prior to considering whether statistical analysis would be applicable for a soil contaminant data set.

In response to this publication, SoBRA set up a sub-group in 2022 with the intention of providing technical guidance to support risk assessment practitioners to understand the soil contaminant element of the CSM prior to carrying out any generic or detailed quantitative risk assessment (and any associated statistical analysis).  The guidance provides a series of tips on the key data sources that should be considered and the questions that should be answered by risk assessment practitioners, to ensure that the soil contaminant distribution is correctly interpreted, not only in the context of its chemical properties and the environmental setting, but also how the distribution and CSM may change over time through human and environmental influences.

Hazardous Ground Gas Top Tips

Issue Date: June 2023

Announcing the publication of the first document from the Ground Gases sub-group.

In 2020, SoBRA created the ground gases sub-group to support technical excellence in the assessment, estimation and evaluation of risks associated with ground gas.

The SoBRA Hazardous Ground Gas Top Tips document provides succinct, comprehensive guidance covering all aspects of assessing ground gas risk from desk study through to site investigation, monitoring, risk assessment and gas protection design.
This document aims to improve and encourage best practice to support practitioners when assessing the risks from ground gases.

Practical Tips Document 2018

June 2018

In June 2018, the Society of Brownfield Risk Assessment (SoBRA), the Geological Society Contaminated Land Group and RemSoc delivered a conference targeted towards early careers learning.  Its aims were:

  • To support technical excellence in the assessment, estimation & evaluation of risks and associated uncertainties from land affected by contaminants;
  • To encourage “good practice” in the practical application of risk assessment to support decisions regarding the appropriate management of land contamination; and
  • To facilitate and widen access to the dissemination of knowledge regarding land contamination risk assessment.

A commitment of this workshop has been the creation of a series of short tabular reports for each of the different discipline areas.  We have produced three practical tips documents which include human health risk assessment, controlled waters risk assessment and vapour intrusion (include link).