Scope
Reference
020342
Description
Knowsley Metropolitan Borough Council (KMBC) manage a closed, unpermitted landfill site located
at Stadt Moers Park, Pottery Lane, Whiston, L35 3RG ("the Site"). The Site received waste between
1945 and 1983, including fly ash and domestic refuse and has subsequently been restored into a
Country Park with public access which is managed by KMBC under Part IIA of the Environmental
Protection Act 1990.
As part of the management of the Site, leachate generated within the historic landfill is discharged to
sewer in accordance with trade effluent discharge consent (TEDC) 693T02074HUY1 issued by
United Utilities (UU) (Appendix A). Prior to discharge, the leachate is treated within an existing
methane stripping plant (MSP) which was designed and built in 2005/6 and is located at the
southern end of the Site, to the east of the M57 motorway and to the west of "Tushingham's Lake" at
national grid reference SJ 46071 90331.
A number of operational issues have been experienced with the current treatment system and
KMBC therefore wish to upgrade the system to one which will provide more efficient and reliable
treatment with a lower demand for operation and maintenance activities than the current system.
Key objectives for the project include:
- the provision of reliable compliance with the conditions of TEDC 693T02074HUY1 presented
within Appendix A throughout the intended design life of 25 years;
- the provision of reliable pumping of the leachate accumulating within the sump adjacent to the
MSP compound to prevent the sump from overtopping throughout the intended design life of 25
years;
- minimising the H&S risks to operational personnel and members of the public associated with
leachate management at the Site;
- minimising the visual, audible and odour related impacts of the leachate management system to
preserve the amenity value of the park;
- minimising the ongoing operational costs of achieving compliance with TEDC 693T02074HUY1
and preventing the sump from overtopping
Total value (estimated)
- £150,000 excluding VAT
- £180,000 including VAT
Below the relevant threshold
Contract dates (estimated)
- 28 March 2026 to 27 July 2026
- 4 months
Main procurement category
Works
CPV classifications
- 45000000 - Construction work
Contract locations
- UKD7 - Merseyside
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
16 February 2026, 12:00pm
Tender submission deadline
23 February 2026, 12:00pm
Submission address and any special instructions
All tender documents can be found on the Chest.
Chest Reference number: DN804433
Opportunity Link: https://procontract.due-north.com/Login?ReturnUrl=/Advert?advertId=15be79e5-aafa-f011-813c-005056b64545&fromProjectDashboard=True
Tenders may be submitted electronically
Yes
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Price | Price | 70% | |
| Social Value | Social value (quantitative) 10% Social value (qualitative) 10% |
Quality | 20% |
| Quality | Quality | 10% |
Procedure
Procedure type
Below threshold - open competition
Contracting authority
Knowsley Council
- Public Procurement Organisation Number: PXQQ-8436-NWPV
Municipal Building, Archway Road
Huyton
L36 9YU
United Kingdom
Region: UKD71 - East Merseyside
Organisation type: Public authority - sub-central government