Potentially hazardous gases may exist in the ground naturally, or be present as a consequence of ground contamination resulting from former use of the site. Typical potentially hazardous gases include methane, carbon dioxide, carbon monoxide, hydrogen sulphide and often a variety of volatile organic compounds (VOCs).
Government planning policy promotes and supports the redevelopment of ‘Brownfield’ sites; hence the assessment of potential hazards posed by the presence of ground gases and the design of appropriate mitigation measures (if required) are routine requirements in the planning and construction process.
EPG has contributed to the development of much of the current guidance relating to ground gas risk assessment and mitigation design and we have an excellent track record in the delivery of exemplary and innovative mitigation designs.
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