GROWTH, HOUSING AND ENVIRONMENT
TENDER REPORT FOR PROJECT NUMBER 10624
GREAT UNION ROAD SURFACE WATER SEPARATION
(Exempt QE Article 33(b))
Purpose of the report
The purpose of this report is to recommend a contractor following the tender assessment of Project Number 10624 - Great Union Road Surface Water Separation.
Background
The Great Union Road Surface Water Separation Scheme is one of the projects identified in the GHE Liquid Waste Surface Water Separation Schemes Procurement Strategy.
The key benefits of Surface Water Separation are:
1) Reduction in unnecessary flows being conveyed to and treated at Bellozanne Sewage Treatment Works (STW)
2) Reduction in risk of Combined Sewer Overflow of dilute foul sewage to sea
3) Increase potential capacity at STW for future foul sewer extensions
Tender Process
Two local Civil Engineering Contractors, with recent and relevant experience of this sort of construction, were requested to tender for this work. The pre-tender estimate for the construction was approximately £250,000. It was felt that only two local civil engineering contractors had the relevant expertise and staff to undertake these works.
Tenders were requested via the Channel Island e-Portal; and were returned on 14 August 2020.
Tender summaries are as follows:
Contractor | Tender Value | Weighted Commercial and Technical Score (max. 100%) |
Geomarine | £197,855.14 | 97% |
Brenwal | £237,854.49 | 84% |
The tender Conditions of Contract were a modified version of the NEC3 Short Conditions. One of the Tenderers (Geomarine) offered alternative Conditions of Contract – the Standard NEC3 Short Conditions.
Technical Assessment
Both Tenderers provided excellent Technical bids.
Commercial Assessment
Geomarine provided the lowest commercial bid. The Bill of Quantities will enable a re-measure of the completed works to represent the work actually done.
Recommendations
Geomarine’s tender represents value for money and demonstrates a clear understanding of the project delivery requirements. The proposed alternative Conditions of Contract are a standard NEC3 Short Contract that has been used on similar recent tenderers. Experience of similar projects in an urban environment strongly indicate that there is a strong likelihood of re-design due to unforeseen utilities; accepting the alternative conditions will facilitate a more straightforward approach to the re-measure of varied and additional work.
Decision
To accept Geomarine Limited’s tender for the sum of £197,855.14 for Project No. 10624 - Great Union Road Surface Water Separation.
Reason for Decision
Geomarine have suitable experience, staff and resources and have provided a commercial offer that represents value for money.
Funding is available from 2020 Capital Votes.
Actions Required
Officers to produce a signed document for the Minister for Infrastructure and the Contractor to sign.
Written by: | Principal Engineer - Drainage Design |
Approved by: | Head of Liquid Waste Management |