United Utilities has gone out to tender with an AMP8 contract for leakage detection and repair for biogas facilities with an estimated value of £1.5 million including VAT.

Scope of the contract covers the provision of leakage detection in line with the Industrial Emissions Directive (IED). Environment Agency guidance on Best Available Techniques (BAT) dictates that the

scope for Leak Detection and Repair (LDAR) is sources of leakage of Volatile Organic Carbon (VOC’s) including methane.

The following type of assets are included in the LDAR scope:

• Double membrane roofs (air blower vent)
• Roof and cover fixings
• Pressure relief valves and vents
• Feeding and digestate separation units
• Gas pipes
• Conveyors and presses
• Compressor
• Combined heat and power plant (methane slippage)
• Gas upgrading plant
• Reception storage
• Digestate storage
• Pits and sumps - e.g. condensate pits

The Bioresource and Energy Services team require surveys to detect fugitive emissions of Volatile Organic Compounds (VOCs) and other substances to air including methane. The LDAR survey methodology must fully comply with EA guidance Biological waste treatment: appropriate measures for permitted facilities (2024) Section 11.9 - Leak Detection & Repair and currently utilise the Optical Gas Imaging (OGI) hand held camera method to enable visualisation of gas leaks with quantification of emission rate and emission concentration.

Current estimated staet and end contract dates are 22 September 2026 to 21 September 2030 with a further possible extension of up to a further 5 years.to 21 September 2035.

Deadline for submission of enquiries is 5:00pm on 28 April 2026with a tender submission deadline of 2:00pm on 15 July 2026.

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Estimated contract award decision date is currently 11 September 2026.