Potters Waste Management continually monitor the landfill sites at Bryn Posteg and Withyhedge in accordance with the requirements of Natural Resources Wales and in accordance with our permit.

Following the completion of a landfill operation, finished cells are covered with an engineered cap to ensure that no rainwater can percolate in and no gas or odour can escape from the landfill.

The effectiveness of the cap depends both on the properties and application of the capping materials and on the gas emission potential.

Natural Resources Wales Guidance on Monitoring Landfill Gas Surface Emissions LFTGN07 requires that gas surface emissions are monitored to assess the integrity of the cap and the efficiency of the gas management system at all times.