Preliminary (Geo-Environmental ) Risk Assessment (PRA or Phase I)
The first stage of contaminated land assessment, identifying potential sources, pathways and receptors based predominantly on historical maps, regulatory database information and a site walkover to develop a Conceptual Site Model (CSM)
![](https://www.evolvegeo-env.co.uk/wp-content/uploads/2022/09/Preliminary_Picture2-300x225.jpg)
![](https://www.evolvegeo-env.co.uk/wp-content/uploads/2022/09/Preliminary_Picture1-300x225.jpg)