UK Public Sector Contracts & Tenders

Tender to procure services for the following scope of work; Supply, planned and reactive maintenance, of Odour Control Assets. Supply, planned and reactive maintenance, of Heating, Ventilation, and Air Conditioning units (HVAC ). Supply and provision of materials, including hire of odour neutralising equipment. Provide environmental odour monitoring and management solutions. Supply and maintenance of H2S Monitoring Condition System.

Southern Water have an upcoming tender requirement for a Framework for Habitat Restoration. The Framework will support Southern Waters AMP8 commitments to improve environmental and water quality in partnership with environmental Non-Governmental Organisations and commercial organisations across the Region.

Southern Water have an upcoming tender requirement for a Framework for Habitat Restoration. The Framework will support Southern Waters AMP8 commitments to improve environmental and water quality in partnership with environmental Non-Governmental Organisations and commercial organisations across the Region.

At Price Review 2024, the development of Southern Water’s modelling capability has supported the articulation of realistic, affordable and future proof long term business strategies (e.g. Bioresources) to mitigate upcoming threats & seize opportunities with the view to improve the company’s financial & Environmental performance. This has been achieved mainly through the provision of process modelling (e.g. sludge transport, masse and energy balance, asset replacement forecast) and scenario testing capability (e.g. testing of impact of varying costs forecast, change in treatment capabilities). This has been the basis of evidence supporting the strategies developed by Southern Water’s Asset Strategy & Planning team. Southern Water is looking at developing this capability further to support the decision-making process of key PR29 programmes. In AMP8, it is also Southern Water’s aim to use modelling capabilities to assist with the planning, impact assessment and testing of constraints of tactical (within AMP) programmes implementation (e.g. capital maintenance, upgrade of processes & plants)

Objectives of this RFI The objectives of this RFI are: 1. To understand the market capabilities. 2. To inform future procurement strategy. 3. To inform future specifications. Southern Water currently operates 10 warehouse sites across Sussex, Kent, Hampshire and the Isle of Wight. We have the need of racking to store equipment, Spare parts and other materials across the business for both Wastewater and Clean water networks. The layouts of the racking at these sites can often need changing in line with business needs as it develops. all information can be found at this link: https://southernwater.ukp.app.jaggaer.com/go/39444794019A11091AAB

Southern Water is committed to reducing storm overflows and managing the volume of water entering the sewer network. A key part of this strategy involves sealing sewers to limit water infiltration and inflow, helping to protect the environment and improve network resilience. We are inviting suppliers with proven expertise in sewer sealing to participate in this market engagement. The aim is to assess capabilities to deliver planned programmes using recognised industry techniques for sealing groundwater out of pipes such as: • Cured-in-place pipe (CIPP) lining • Pull-in-place liners • Slip-lining • Fold-and-form liners • Full-length polymer coatings • Targeted patch repairs • Packer/resin injection • Chemical/polyurethane grouting • Cementitious grouts • Mechanical joint seals • Manhole rehabilitation • Top Hat Installation • Hot cure methods e.g Inversion, Steam Cure, UV light, LED light. • Other sewer sealing/pathing techniques and innovations • Other sewer sealing/pathing techniques and innovations Information requested • Overview of your experience and proven track record with the major sewer sealing techniques listed (though not exhaustive) above. • Current and forecasted delivery capacity including crews and annual throughput. • Possible geographical split for delivery including any regional offices, depots, or preferred operating areas. • In-house technical capabilities and certifications for CCTV surveying, cleaning, lining, injection grouting, manhole rehabilitation and post-work validation. • Ability to provide turnkey services including traffic management, reinstatement, emergency response and accurate reporting. • Your appetite for sewer sealing supply chain innovation This engagement is separate from the Wastewater Network Services – Lot 4, which focuses on reactive repair and maintenance of live assets. Instead, this initiative is forward-looking, targeting proactive sealing interventions to support our long-term environmental and operational goals. Purpose and scope The objective is to identify contractors able to programme and deliver sewer sealing works at scale, reduce inflow and infiltration, and restore or improve hydraulic and structural integrity across our sewer network. We seek information on supplier capacity, mobilisation readiness, geographic delivery options, and in-house technical capabilities for both pipe and manhole interventions. Tender Tender is planned to commence in late 2025/early 2026 to support planned Sewer Sealing work in AMP8, Contract commencing in 2026.

The Andover Link Main (ALM) scheme is being delivered by Southern Water Services (SWS) under the Major Projects Directorate. The ALM project is part of the WRMP programme and is associated with SWS’s agreement with the EA under Section 20 of the Water Resources Act 1991 put in place following Public Inquiry to reduce our abstraction licenses for public water supply. Its purpose is to provide environmental protection for the rivers Test and Itchen. The WRMP Programme aims to create greater resilience to water shortages, especially during dry weather and droughts. Existing abstraction licences for the River Test and River Itchen have been substantially reduced through changes required by the Environment Agency to protect the rivers, both designated as Sites of Special Scientific Interest (SSSI), and the River Itchen as Special Area of Conservation (SAC). Additional licence changes will bring further reductions. These rivers are key examples of rare chalk stream habitat which support a wide variety of species. The Proposed Scheme will support environmental improvement by increasing the protection of these rivers while addressing the need for secure water supply. The ALM scheme involves approximately 25km of below-ground pipeline connecting critical infrastructure between Winchester and Andover, alongside upgrades to existing and new booster stations. It aims to deliver a bi-directional transfer capacity of 15Ml/d by March 2030, ensuring both strategic drought resilience and operational reliability for the isolated Andover Water Resource Zone (WRZ). SWS delivery strategy is to appoint a single Principal Contractor to design and build Andover Link Main, delivery to inclue detailed design and construction package with enabling work to be completed prior to construction. The Principal Contractor will act as a Tier 1 provider and sub-contract specialist elements such as Horizontal Directional Drilling (HDD), this strategy is to reduce risk of interdependency issues in construction, testing and commissioning. We understand the current market status of the Tier 2 requirements including Civils Groundworks Temporary site works PE Pipe Pipe fittings Plant tools and equipment (welding, excavation etc) Specialist HDD Equipment and Pipe-Jacking Machines MCCs Pumps is stretched as we enter this significant investment period for water and other infrastructure. To support the success of our ALM scheme we are conducting a market engagement exercise that invites the Tier 2 supply chain to register their interest in supporting our Tier 1’s in delivering the scheme https://southernwater.ukp.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=59781

RFI for IT & OT Managed Detection and Response (MDR) Services, to understand the current market to deliver on both OT & IT services

SW looks to support student placements as part of our Early Careers offering. These student placements provide potential feeder pipelines into our Graduate programmes. Over the last 2 years SW has facilitated around 10-15 students per calendar year to utilise a placement within our business. We look to build both volume, quality and sustainability of our Early Careers programmes going forward. Delivery of our student placement opportunities by a procured provider helps support our Early Careers strategy through AMP8.

Section 82 of the Environment Act 2021 requires sewerage undertakers, operating wholly or mainly in England, to continuously monitor the quality of the receiving water upstream and downstream of storm overflows and discharges from wastewater treatment works, enabling impact assessment of discharges from these assets on the receiving watercourse. Actions required to meet the requirements of the Section 82 CWQM are contained within statutory drivers under the Water Industry National Environment Programme (WINEP). These duties are phased across AMP8 & AMP9, (2025-2035). The objectives of the CWQM programme are to: - Quantify local water quality impacts from Water and Sewage Company (WaSC) assets. - Improve stakeholder & public understanding of impacts from the WaSC assets on water quality. - Inform improvement programmes to meet Storm Overflow Discharge Reduction Plan (SODRP) targets. - Inform regulatory action. The draft technical specification requires that monitoring must: - Be linked to existing regulatory standards; - Provide data which can be attributed to the target assets; - Provide understandable data to the public; - Provide understanding of how performance and water quality impacts of water company assets change over time; and - Show water quality impacts of water company assets in near real time By 2035, SWS will be required to demonstrate that at least 75% of storm overflows discharging into or near ‘high priority sites’ cause no local adverse ecological impact. These sites are programmed for monitor installation during AMP8 (2025-2030) . DEFRA has published the Interim Technical Standard, setting minimum specifications & performance criteria, to cover the transitionary period prior to development & implementation of a bespoke CWQM MCERTS standard. The interim technical guidance recommends that WaSCs & contracted service providers undertake to develop, and or use, existing standards to establish Quality Management Systems (QMS) covering the following: - Equipment standards - Installation standards - Monitor siting - Maintenance & calibration - Data capture, storage, sharing, & validation Southern Water Services Ltd. is seeking information from all interested suppliers, manufacturers, and solution providers regarding solutions for CWQM, in line with regulatory requirements under Section 82 of the Environment Act 2021 and DEFRA’s CWQM Programme. This RFI aims to gather insights into available technologies, capabilities, and approaches that align with or exceed the interim technical standards outlined below. Responses will inform future procurement and standard development. We welcome responses from organisations offering complete systems, modular components, relevant services or innovative approaches to monitoring, data management, and assurance. The objective is to understand market capabilities, indicative costs, and technical feasibility for deploying monitoring systems across riverine environments. To enable us to fully understand the market, interested parties should complete and return the “Continuous Water Quality Monitoring (Section 82) 2025 Request for Information”. This first RFI will inform further procurement activities which will include additional engagement requests, concluding with an invitation to tender (ITT). Suppliers are invited to submit information on products and/or services related to CWQM, with regard to: - Site planning & investigation, including audit of final monitor locations, - Supply of approx. 300 monitors & data transmission equipment, - Installation of approx. 300 monitoring solutions, across Southern Water’s Operational Region (Kent, East and West Sussex, Hampshire and Isle of Wight). - Operation of the monitoring equipment, including calibration and maintenance, - Data collection, visualisation & analysis, As this programme of work is a regulatory requirement within the WINEP, information should be provided to support capability and capacity for offered products and/or services to ensure adherence to the WINEP regulatory completion date of 31st March 2030. Solutions should include: - Instrumentation: Multi-parameter sondes, process instrumentation, chemistry analysers - Power Supply: Available options, focussing on self-contained units (e.g. solar powered) - Telemetry: Real-time data transmission every 20 minutes - Data Logging: Every 15 minutes - Options for Portal Access: Options for integrating with SWS digital systems, as well as Public-facing interfaces with reporting and API export.

Southern Water (SW) is seeking information from suppliers in relation to a potential procurement exercise. The information is not part of the procurement exercise, but your input will be critical in the development of the sourcing strategy and tender documentation. Southern Water is responsible for providing, maintaining, and operating water supply and distribution services covering the counties of Kent, Sussex, Hampshire and the Isle of Wight and providing services for the maintenance, repair, renewal, or improvement of services forming Southern Water’s water distribution systems. Southern Water is seeking information on solutions for Alternative Water Supply and Incident Management to ensure continuity of service during clean water supply interruptions. In the event of an outage, whether planned or unplanned, Southern Water have a statutory obligation to provide customers with access to potable water through alternative means. We are exploring options that can help us respond quickly, maintain customer welfare, and meet regulatory requirements during such incidents. Objective of this procurement: Supply goods and/or services to provide (or support) in a means of alternative water of an approved quality and quantity to, or made available to, affected customers within a defined response time. The service is to be available 24/7/365 across Southern Water’s operational areas (Kent, Sussex, Hampshire & Isle of Wight) Summary Scope: 1. Clean Bulk Water Tankering 2. Traction Only Haulage & Driver Resource 3. Static Container Deployments 4. Supply of Bottled Water 5. Bottled Water Delivery to Vulnerable Customers 6. Bottled Water Stations 7. Incident Management System A more detailed breakdown of each service element is contained within the request for information documentation on the jaggaer sourcing platform, instructions on how to access the documents are in this notice. The objectives of this RFI are to: 1. To inform the contract specification 2. To inform the procurement structure 3. To inform the contractual agreement 4. To understand the markets technical capabilities 5. To understand the markets commercial structures 6. To understand other services that may be of offered or of interest to Southern Water

Southern Water is advancing two strategic water recycling schemes, Medway and Littlehampton, to deliver up to 33.4 million litres per day of purified recycled water during drought conditions. These schemes will reduce abstraction from sensitive river systems, support environmental destinations, and ensure resilient water supplies for future generations.​ The Projects respond to Environment Agency directives to reduce abstraction, and to regional forecasts of supply deficits under Water Resource South East (WRSE) and Water Resource Management Plan 2024 (WRMP24) planning scenarios. The schemes are essential to meeting Southern Water’s obligations under the Water Industry National Environment Programme (WINEP) and are expected to contribute to achieving environmental destination outcomes in sensitive catchments.​

The Request for Information is available for download at southernwater.bravosolution.co.uk Look for "pqq_907 Kent Bioresources Project Request for Information" If you don't already have a login, registration is simple and free Introduction This RFI follows on from, and has been informed by, the market engagement activities undertaken in early 2024, details of which can be found here www.find-tender.service.gov.uk/Notice/004012-2024. These earlier sessions, including a market engagement event and subsequent one-to-one discussions, provided valuable insights into market capacity, delivery preferences, and potential partnership models. The feedback received has helped shape the current approach and the areas of focus set out in this Request for Information. Project Purpose Southern Water Services Limited (SWS) is initiating the Kent Bioresources Project to modernise and consolidate its sludge treatment operations across Kent. The project forms a key part of SWS’s long-term bioresources strategy to deliver a more efficient, resilient, and compliant asset base aligned with future environmental standards and the company’s AMP8 priorities. Background Southern Water currently treats approximately 6 million m³ of sewage sludge per year across its wastewater treatment network, operating 16 sludge treatment centres (STCs) supported by a large transport and recycling operation. In Kent, the current system comprises seven STCs processing around 42,000 tonnes dry solids (TDS) annually. A combination of ageing infrastructure, evolving regulation, and tightening environmental standards — including restrictions on landbank use, air-emission limits, and emerging contaminants such as PFAS — necessitates a shift toward advanced, centralised treatment solutions. Project Vision The Kent Bioresources Project proposes to consolidate seven existing sludge treatment centres into three new “super-sites” that will employ Advanced Anaerobic Digestion (AAD), CHP biogas utilisation, or biomethane upgrading for grid injection. The indicative preferred sites are: • Ashford STC (South Kent) • Ham Hill STC (North Kent) • Motney Hill WTW (Medway) – this has been added since the last market engagement. Sites are expected to require full redevelopment, including new reception, digestion, dewatering, and energy recovery infrastructure. We also have commenced feasibility studies for plants in Hampshire and Sussex to be upgraded to AAD too.   Delivery Approach Southern Water is exploring delivery through a single third-party DBFOM (Design, Build, Finance, Operate, Maintain) contract, though alternative contracting structures remain open for market input. Indicative features include: • Long-term, performance-based contract structure. • Off-balance-sheet treatment of capital investment preferred. • Potential Special Purpose Vehicle (SPV) or consortium delivery model. • Opportunities for collaboration among civil contractors, technology providers, funders, and operators. Market Engagement Objectives Through this RFI, Southern Water seeks to: • Gauge market appetite across the investor, construction, and technology supply chain. • Understand preferred contracting and financing models. • Explore innovative technical solutions (e.g., alternative advanced treatment processes, resource recovery, or third-party waste integration). • Identify key delivery risks, interfaces, and opportunities for resilience.

Background Southern Water is undertaking a Data, Analytics and AI Transformation Programme to become the UK’s most data-intelligent water utility. A key pillar of this strategy is Open Data increasing transparency, enabling innovation, and improving trust with customers, regulators and local authorities. As part of our Data Foundations workstream, we are establishing: A governed data platform (Azure/Databricks based) Microsoft Purview for catalogue and governance Defined publishing, licensing and approval processes An Open Data Proof of Concept and MVP  We are now exploring options for procuring an external Open Data Portal platform. This RFI seeks to: Understand the capabilities available in the market Identify architecture and deployment options Assess integration with Azure/Databricks and API-first models Understand commercial models

The service required under this procurement are as follows: • Supply of Assets • Design, Installation and Commissioning • Planned Preventative Maintenance (PPM) • Reactive Maintenance • Hire • Compliance & Safety Services Assosiated Services