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Gas Monitoring

The risk of ground gases should be routinely measured and assessed on a wide range of sites – particularly those close to in-filled land or mine workings.

As part of our monitoring service, Mayer measures and records:
•    Levels of gases including oxygen, carbon dioxide and methane
•    Volatile compounds and vapours
•    Important flow rates
•    Any other gases that may be important on a particular site

Using this information, we assess the risk to the end user and design suitable and cost-effective remedial measures to protect them.

Here we explore some important and perhaps little-known facts about gas monitoring.

Gas monitoring – did you know?

•    Landfill permits often stipulate that gas levels must be monitored and reported  
•    Gas monitoring often forms part of phase II site investigations or planning conditions
•    The National House-Building Council (NHBC) typically requires gas monitoring to be carried out if building approval is to be granted
•    Current guidance states that such assessments should be undertaken over a period of at least three months, with several visits taking place during this period
•    A monitoring programme should reflect differing weather conditions – particularly changes in atmospheric pressure

Where monitoring wells already exist, our skilled specialists are able to accurately measure ground gases and downhole pressure using state-of-the-art field equipment.

Where monitoring wells do not exist, Mayer will design a site-specific monitoring strategy. Using appropriate drilling techniques we will create wells and undertake

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