Groundwater Monitoring

After the collection of groundwater samples, these samples are analysed in a laboratory for signs of contamination, corrosive elements, and other potentially harmful substances, including oil and free products.

If contaminants are detected in the groundwater, it typically triggers a Quantitative Groundwater Risk Assessment (QGRA), also referred to as the P20.

This mandatory assessment compares the groundwater samples with a broad range of prescribed water samples to determine the degree of risk posed by the groundwater to the site and the surrounding environment.

The results of the QGRA often lead to the identification of necessary remedial actions for groundwater treatment. These actions are recommended based on the extent of contamination found and the specific risks to the environment.

All groundwater risk assessments we conduct are in full compliance with the latest regulations set out by the Environment Agency, ensuring that our recommendations are both up-to-date and in line with best practice standards for environmental protection.

Ground Gas Monitoring

Ground Gas Monitoring is crucial for identifying the presence and levels of gases in the ground and on-site, such as oxygen, carbon dioxide, hydrogen sulphide, carbon monoxide, and methane.

The risk of harmful ground gas accumulation is higher in certain areas, particularly on brownfield sites or locations previously used for mining or industrial purposes.

If left unchecked, the buildup of gases can pose serious health and safety risks. Gases can accumulate in confined spaces such as buildings, where oxygen levels may be restricted, creating hazardous conditions.

If potentially harmful gases are detected during ground gas monitoring, specialized gas wells are installed to facilitate further monitoring and data collection. Early detection of these gases is vital for preventing potentially dangerous situations on-site.

Timely and accurate ground gas monitoring helps to mitigate risks and provides insights into the appropriate steps for dealing with gas-related issues. Effective gas management is crucial for the safety and health of construction workers and future occupants of the site, making thorough and continuous monitoring a key element of successful site management.