Phase 1 Desk Top Study

Phase 1 Desk Top Study

A Phase 1 Desk Study Contaminated Land Risk Assessment provides an initial overview of the history of the site and its surrounding area and consequently of the nature and extent of contamination hazards that may exist there. It is usually used to assess whether further investigation (normally in the form of an intrusive or Phase 2 site investigation) is required.

Our Phase 1 Assessments involve a review of current and past land uses on the site using historical and current day GIS mapping, planning records and other data sources in order to identify potential soil contamination sources that may have existed on the site and potential receptors (i.e. human and environmental) that may be affected. The information from the Phase 1 Assessment is used to develop a Conceptual Site Model (CSM) which gives an overview of potential soil contamination associated risks at the site.

Delivery for the study will include a final report written to meet the specifications outlined in the British Standard BS 10175:2011+A2:2017 Code of Practice for the Investigation of potentially contaminated sites and the Environment Agency Document, CLR11 Model Procedures for the Management of Land Contamination.

The report will include the following information:

• A clear assessment of past and current uses of the site and surrounding areas;
• Identification of potential receptors, sources of contamination and likely pathways;
• Information on the geology, geochemistry, hydrogeology and hydrology of the site;
• An initial conceptual site model and a qualitative assessment of risks;
• Recommendations for further action where necessary.