Gas Supply is Carefully Managed
Regulations for gas mains and services are established to protect UK residents, and the HSE (Health and Safety Executive) monitors the compliance of these regulations. HSE publications provide homeowners and construction workers with essential information about gas supply lines. Questions about any aspect of pipeline safety, including installation and maintenance, should be directed to a Health and Safety Executive representative.
The depth of gas mains and services pipes is a concern for many. Although the Pipelines and Safety Regulations 1996 (PSR) reports regulations for pipe design and installation, it does not address the issue of minimum gas pipe depth. A Guide to the Pipelines Safety Regulations 1996, a publication by the HSE, and Approved Code of Practice and Guidance Design, Construction and Installation of Gas Service Pipes, a Health and Safety Commission (HSC) publication, supply detailed information about depth requirements of gas lines. HSE oversees adherence to the requirements. Service pipes in heavily travelled areas, such as footpaths and highways, must be a minimum of 450mm underground, while service pipes on private land must be buried at least 375mm. Gas mains must be buried at least 750mm.
Anyone that digs in the ground can damage a gas main or service pipe, which is unlawful according to PSR regulation 15. Practical instructions and guidelines to decrease the risk of damaging a gas pipeline can be found in HSE HSG47, Avoiding Danger from Underground Services, and information sheet, Avoiding Damage to Buried Services.
Gas mains and services must be in good condition in order to comply with PSR regulation 13. HSE ensures the safety of all gas pipelines, and the agency has determined that all existing iron gas pipes near occupied territories must be replaced with pipes of polyethylene or other suitable material. Pipeline operators have until March 2032 to decommission and replace all iron pipelines in their systems. Any pipes that are known to be in questionable condition are expected to be replaced as soon as possible.
HSE is monitoring the highly publicized Milford Haven Pipeline, which is owned by National Grid Gas. National Grid Gas must follow all established regulations for pipe design, system construction, and operation. The pipeline operators must comply with the health and safety laws of gas mains and services. HSE will inspect the construction and operation of the project to verify that all regulations are met. The agency will also determine land planning zones for areas affected by the pipeline construction. HSE regulation will continue after the completion of the pipeline.
Citizens can be assured that the Milford Haven Pipeline will be constructed according to careful planning. HSE considers all aspects of the pipeline, such as diameter, wall thickness, type of steel, depth of pipe burial, and pressure limits to determine the zoning regulations. The risk of thermal radiation from the pipes is assessed, and HSE advises the pipeline operators where and how to construct the pipeline.
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