Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture·Page 19·Table 3.3
Examples of possible contaminants
This table provides indicators of possible contaminants on a site, including signs such as abnormal vegetation, unusual surface materials, fumes and odours, and physical evidence like drums and containers, along with the types of contaminants they may indicate.
Table 3.3 Examples of possible contaminants
Signs of possible contaminants | Possible contaminant
Vegetation (absence, poor or unnatural growth) | Metals, Metal compounds, Organic compounds, Gases (landfill or natural source)
Surface materials (unusual colours and contours may indicate wastes and residues) | Metal, Metal compounds, Oily and tarry wastes, Asbestos, Other mineral fibres, Organic compounds including phenols, Combustible material including coal and coke dust, Refuse and waste
Fumes and odours (may indicate organic chemicals) | Volatile organic and/or sulfurous compounds from landfill or petrol/solvent spillage, Corrosive liquids, Faecal animal and vegetable matter (biologically active)
Damage to exposed foundations of existing buildings | Sulfates
Drums and containers (empty or full) | Various
Note: The above list is not exhaustive.
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