Peter Baxter Associates Ltd were engaged to monitor boreholes installed by others at a disused scrap yard in Aylesford, Kent. The site was monitored weekly for VOCs, methane, hydrogen sulphide, oxygen and carbon dioxide.

The site was visited on a weekly basis at different atmospheric pressures to ascertain whether any gas prevention measures would be required for a new housing development. An FID gas analyser was used to identify whether VOC gases were present and a gas analyser for identifying landfill gases.