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Progress with the iron mains replacement programme 2009 - 2010

  1. Under the Pipelines Safety Regulations 1996, regulation 13A [PDF 90KB], HSE approved annual replacement programmes for the year 1 April 2009 to 31 March 2010 for the Distribution Networks (DNs) shown in Table 1. The progress in meeting the national and individual network targets is also shown.
  2. Nationally 3865.5 km of iron mains were decommissioned against the annual approved target of 3728.4 km - an extra 137.1 km. All of the networks met or exceeded their overall decommissioning targets.
  3. As part of its monitoring strategyand 5 year intervention plans for the Distribution Network Operators (DNOs), HSE continues to carry out mains replacement audits to check that mains are decommissioned in accordance with the policies and procedures in the DNOs’ Gas Safety (Management) Regulations 1996 safety cases.

Table 1 - Mains replacement performance 2009 - 2010 by Distribution Networks

Network Network operator Target (km) Actual (km)
All networks 3728.4 3865.5
Scotland Scotland Gas Networks plc 271.0 281.6
North of England Northern Gas Networks Limited 528.1 534.8
South of England Southern Gas Networks plc 712.3 748.8
Wales & West Wales & West Utilities Limited 361.0 369.3
North West National Grid Gas plc 544 1856 541 1931
East of England 601 626
West Midlands 347 380
North London 364 384