Projects | Ground Gas Monitoring

SITE INVESTIGATION

We offer site investigation contracting with factual reporting, cross consultancy services.

Geotechnical Consultancy

Geotechnical risk is one of the main considerations developers and engineers need to manage in order to deliver a successful project.

In-situ Testing Earthworks

Working closely with the laboratory and the consultancy teams, we specialise in working with contractors delivering the placement of engineered fill.

Laboratory Testing

Our modern testing facilities paired with qualified and experienced staff enables our clients to choose independent testing services, or testing as part of the overall site investigation package.

Contaminated Land

Our investigations range from Phase 1 reports, developing the conceptual site model to detailed quantitative risk assessments.

Sectors

South West Geotechnical Ltd works within a wide variety of sectors.Clicking here will take you to case studies, by sector type, that demonstrate our capabilities and innovative approach.

OUR SERVICES

LOCATION:

Ground Gas Monitoring

Ground Gas Monitoring - Gas risk assessment for residential development near historic landfills

Following identification of several historic and active landfills in the vicinity of a residential development, a gas risk assessment was undertaken to determine the level of gas protection measures required. A series of gas monitoring wells were installed using SWGs very own Dando Terrier window sampling equipment. These were subsequently tested for methane and carbon dioxide using a GA5000 gas analyser.

ground gas monitoring

The monitoring indicated there were minor concentrations of carbon dioxide present on site.

ground gas monitoring

SWG determined that the concentrations were not elevated enough to warrant specific gas protection measures beyond the basic radon protection already required and the use of sound modern construction practices. This was agreed with by the National House Building Council (NHBC) and development was allowed to proceed with significant cost savings for the client.

LOCATION:

Ground Gas Monitoring​

Ground Gas Monitoring