--- title: "Groundwater Monitoring Services" ocid: "ocds-h6vhtk-046e0d" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-046e0d" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-046e0d.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-046e0d.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "BAZALGETTE TUNNEL LIMITED (TRADING AS TIDEWAY)" published: "2024-06-06" --- # Groundwater Monitoring Services Buyer: BAZALGETTE TUNNEL LIMITED (TRADING AS TIDEWAY) Current stage: Tender OCID: ocds-h6vhtk-046e0d [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-046e0d) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-046e0d.json) ## Summary The procurement process involves Bazalgette Tunnel Limited (trading as Tideway) seeking groundwater monitoring services for the Thames Tideway Tunnel project. The contract, titled "Groundwater Monitoring Services," falls under the services category of the industry. The tender is currently in the active stage with a tender period ending on 22nd July 2024. The contract value is £1,250,000 GBP, and the procurement method is a selective negotiated procedure. The contracting authority is based in London, UK. This tender presents an opportunity for businesses specialising in groundwater pollution monitoring or environmental monitoring services to participate in a long-term contract for up to 10 years. Companies with expertise in laboratory services and experience in conducting groundwater quality monitoring would be well-suited to compete. The initial term of the contract is 36 months, with possible extensions. Interested parties should refer to the Procurement Documents for detailed information on submission requirements and evaluation criteria. ## Notice The Thames Tideway Tunnel is a major infrastructure project, urgently needed to protect the tidal River Thames from increasing pollution. London's sewerage system is no longer fit for purpose and spills tens of millions of tonnes of untreated sewage mixed with rainwater (combined sewage) into the tidal reaches of the River Thames every year. Bazalgette Tunnel Limited (BTL), is the licensed provider set up to finance, build, maintain and operate the Thames Tideway Tunnel. From Licence Award BTL trades and is known to the public as 'Tideway'. Tideway is upgrading London's sewer system to comply with UK obligations under the wastewater directives and cope with its growing population. Our 25km tunnel will intercept, store and ultimately transfer storm sewage away from the River Thames. Construction of the Thames Tideway Tunnel is planned to be completed during 2024 followed by periods of system commissioning and system acceptance testing. During the project construction phase groundwater monitoring and dewatering activity has been undertaken by the main works contractors (MWCs) within their respective areas of the project. Following completion of construction works, operational monitoring is required for a period for assurance purposes. The operational groundwater monitoring has different requirements to that undertaken during the construction phase. During construction the requirements focused on monitoring and managing the effects of construction activity, during operation the requirements relate to monitoring and managing the effects of the operation of the tunnel by monitoring for sewage indicators. The responsibility for groundwater monitoring transfers from the MWCs to Tideway at completion of the works. Tideway is therefore seeking a Contractor to provide groundwater monitoring services across the specified sites for an initial period of 3 years and maximum term of 10 years. The duration of the requirement is currently estimated at 5 years however it will ultimately be determined by analysis of the groundwater monitoring and sufficient assurance that the tunnel is operating appropriately. The services will include, but not limited to : * Monitor groundwater quality by sampling existing boreholes along the tunnel route and have the samples analysed against a list of water quality tests (which will be specified by Tideway). * For clarity the services do not cover groundwater monitoring via boreholes for construction but will be for tunnel operational monitoring to ensure there is no pollution to the surrounding groundwater. * For reference, the tunnel will be transporting 'storm sewage' flows along it, not sewage. This is important as it will be diluted sewage. * The boreholes are pre-existing having been drilled around 5-10 years ago. Services or ability relating to maintaining the boreholes themselves may be required. * The monitoring sites are located mostly in the East area and the eastern half of the Central area of the project. * We would expect sampling to occur at regular periods. At the moment that is likely to be every 3 months, however this is subject to confirmation. * Services will include laboratory testing of extracted water samples for stated contaminands and provision of results to Tideway. * There may be liaison with landowners required to access some of the boreholes. ### Lot Information Lot 1 Interested organisations should refer to II.1.4) (Short Description) and VI.3) (Additional information) and to the PQP and other Procurement Documents for further information on the description of the Services and the Contract. Section II.1.5 (Estimated total value): The estimated total value has been based on the expected duration of 5 years, this value is indicative and depends on business needs over the term. Section II.2.7 (Duration of the Contract): The initial term of the Contract is currently estimated to be 36 months with options to extend to a total possible aggregate term of ten (10) years should all possible extension options be exercised. Timescales in this Contract Notice are estimated based on the current Tideway programme but may be subject to change. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/017626-2024 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Negotiated procedure with prior call for competition | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 6 Jun 2024 | | Submission deadline | 22 Jul 2024 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £1,250,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | BAZALGETTE TUNNEL LIMITED (TRADING AS TIDEWAY) | | Locality | LONDON | | Post town | South East London | | Postcode | SE1 0SU | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI4 Inner London - East | | ITL 3 | TLI44 Lewisham and Southwark | | Local authority | Southwark | | Electoral ward | Borough & Bankside | | Westminster constituency | Bermondsey and Old Southwark | | Delivery location | TLI London | ## CPV Codes ### Divisions - 71 - Architectural, construction, engineering and inspection services - 90 - Sewage, refuse, cleaning and environmental services ### Codes - 71900000 - Laboratory services - 90711500 - Environmental monitoring other than for construction - 90733700 - Groundwater pollution monitoring or control services ## Release History - 6 Jun 2024 at 13:45 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/017626-2024 ## Notice URLs - http://www.Tideway.London - http://www.legislation.gov.uk/ - http://www.ofwat.gov.uk/regulated-companies/improving-regulation/thames-tideway/ - https://tideway.bravosolution.co.uk ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-046e0d. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-046e0d.json.