Phase Two – Intrusive Investigation

A Phase Two Investigation is required if potential contamination is identified by the Phase One survey. This includes a detailed site investigation to determine the nature, extent and degree of contamination, the scope of which must be agreed with the LPA before commencement of works. A Phase Two contaminated land survey typically requires invasive/intrusive investigation by way of exploratory holes, sampling of soils, chemical laboratory testing and environmental monitoring. The Preliminary Conceptual Model formulated by the Phase One can be amended where necessary, and a quantitiatve risk assessment produced.