Updated guide published in January 2019 (Original guide published in May 2010)

This document is intended to provide practical guidance on the mechanics of the environmental sampling of soils, liquids and gases in order to improve consistency in approach across the industry and summarise current best industry practice on:

• The mechanics of sampling differing media;
• The avoidance of cross contamination;
• The use of blank, duplicate and trip samples; and
• Suitability of sample containers, transport and recording.

The methodology of what, where and how often to sample will be dictated by the conceptual site model, the purpose of the investigation and the actual site conditions. These concepts are dealt with in other industry, BSI and regulatory guidance documents that should be referenced prior to undertaking any environmental sampling.