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Construction Contract Leads

Scope

Reference

PRO005005

Description

The Bioresource and Energy Services team require non-intrusive tank capacity and sediment assessments of Anaerobic Digesters using Lithium chloride as a trace element to comply with Environmental Permitting (England & Wales) Regulations 2016 implementing the Industrial Emissions Directive (IED) every 5 years, which takes an integrated approach to controlling pollution to air, water, and land from industrial activities. We require the supplier to develop methodology to determine the effective volume of an anaerobic digester over a short period of testing time. The effective volume should be calculated from the lithium concentration once it reaches a steady and consistent level. The calculation for effective volume should be based on the dose of lithium chloride added, the concentration of lithium, and the background concentration established before the test is initiated. The results of the data should establish the following, and be presented within a report: Mixing efficiency Hydraulic retention time (HRT) Short鈥慶ircuiting or dead zones Sediment/grit accumulation The lithium chloride is to be dosed into each digester鈥檚 feed line, or other suitable position. Prior to the dosing of lithium chloride, initial samples should be taken from each digester in order to establish the background lithium concentrations. Samples should be taken from designated sampling points, identified during a pre-test site visit.

Commercial tool

Establishes a framework

Total value (estimated)

• 拢1,250,000 excluding VAT
• 拢1,500,000 including VAT

Above the relevant threshold

Contract dates (estimated)

• 22 July 2026 to 21 July 2030
• Possible extension to 21 July 2035
• 9 years

Description of possible extension:

Extension of up to a further 5 years.

Main procurement category

Services

CPV classifications

• 71900000 - Laboratory services

Contract locations

• UKD - North West (England)

Framework

Maximum number of suppliers

1

Maximum percentage fee charged to suppliers

0%

Framework operation description

Direct Allocation

Award method when using the framework

Without competition

Contracting authorities that may use the framework

Establishing party only

Participation

Particular suitability

Small and medium-sized enterprises (SME)

Submission

Enquiry deadline

22 April 2026, 5:00pm

Submission type

Tenders

Tender submission deadline

22 June 2026, 2:00pm

Submission address and any special instructions

Tenders may be submitted electronically

Yes

Languages that may be used for submission

English

Award decision date (estimated)

15 July 2026

Award criteria

Other information

Conflicts assessment prepared/revised

Yes

Procedure

Procedure type

Competitive flexible procedure

Special regime

Utilities

Competitive flexible procedure description

United Utilities Bioresource and Energy Services team require non-intrusive tank capacity and sediment assessments of Anaerobic Digesters using Lithium chloride as a trace element to comply with Environmental Permitting (England & Wales) Regulations 2016 implementing the Industrial Emissions Directive (IED) every 5 years, which takes an integrated approach to controlling pollution to air, water, and land from industrial activities. We require the supplier to develop methodology to determine the effective volume of an anaerobic digester over a short period of testing time. The effective volume should be calculated from the lithium concentration once it reaches a steady and consistent level. The calculation for effective volume should be based on the dose of lithium chloride added, the concentration of lithium, and the background concentration established before the test is initiated. The results of the data should establish the following, and be presented within a report: Mixing efficiency Hydraulic retention time (HRT) Short鈥慶ircuiting or dead zones Sediment/grit accumulation The lithium chloride is to be dosed into each digester鈥檚 feed line, or other suitable position. Prior to the dosing of lithium chloride, initial samples should be taken from each digester in order to establish the background lithium concentrations. Samples should be taken from designated sampling points, identified during a pre-test site visit. Information sharing methods will be established during onboarding

Contracting authority

United Utilities Water Limited

• Public Procurement Organisation Number: PVVB-5589-BWHX

Lingley Mere Business Park

Warrington

WA5 3LP

United Kingdom

Contact name: Tesni Walker

Email: AMP8Procurements [at] uuplc.co.uk

Website:

Region: UKD61 - Warrington

Organisation type: Private utility