In the UK there are approximately 130,000KM of Cast Iron, Ductile Iron and Steel pipes in use with a requirement for ongoing replacement due to age and material degradation. Due to the sheer size of the workload, there is a need for an accurate method of prioritising pipes for replacement. 40SEVEN provide expertise and over 10 years experience in carrying out surveys to help gas operators achieve their replacement programme.

40SEVEN is the principle UK contractor working on the Mains Risk Prioritisation Scheme (MRPS) and are currently engaged in high volume data collection, equating to over 15,000 gas assets per calendar month.

At 40SEVEN we have surveyors based around the UK that specialise in gas hazard surveying. 40SEVEN remains the single largest supplier of Gas Mains Hazard Surveying in the gas industry. All our field personnel are suitably qualified and ensure that all surveys are delivered to the total satisfaction of our clients.
Typical Gas Hazard Surveys that 40SEVEN carry out involve collecting data on;

• Ground Conditions
• Cellared Properties
• Property Proximities
• Property Counts
• Vulnerable Properties

We use data capture technologies that are fully integrated with GIS for accurate data mapping and MapPoint routing that enable the effective and timely collection of mass data.

To learn more about some of our past and current projects, read our Success Stories:
Gas Hazard Surveying – National Grid
Gas Hazard Surveying – GIS Routing Analysis