Official UK procurement notice
DCWW2115 Service Reservoir Cleaning, Maintenance and Refurbishment CoP
Authority: Dwr Cymru Cyfyngedig (Public body)
What is being bought
Published requirement descriptionOverview And Objectives
DCC intends to award a Framework Agreement for Service Reservoir Cleaning, Maintenance and Refurbishment services. It is a business-critical service required to:
• maintain the cleanliness, integrity and operational condition of DCC’s potable water storage assets;
• support the safe and timely return of service reservoirs to operation following planned cleaning, inspection and minor remedial works; and
• support compliance with Drinking Water Inspectorate (DWI) requirements, DCC’s internal standards and applicable water quality legislation.
The Framework will be used to provide cleaning and maintenance for potable water tanks across DCC’s operational area. There are approximately 828 tanks within DCC’s estate that require routine cleaning and inspection in accordance with PNL 810 (DCC’s internal standard for drain downs and cleaning of service reservoirs) to meet Drinking Water Inspectorate (DWI) regulations.
Tanks include below ground and above ground steel or concrete tanks as well as a small number of water towers however most tanks are square, underground concrete structures.
Ensuring a clean and consistent water supply is core to DCC services and is linked directly to corporate key performance indicators.
Read the full description (2,234 more characters)
The proposed contract term is 3 years, with the option to extend for a further 5 years (2 + 2 + 1 years). The estimated value of the framework for the initial three-year term is £25.5 million based on estimated annual expenditure of approximately £8.5 million. The value across the maximum term of 8 years is £68m.
Scope
The scope includes the following elements:
Cleaning
This includes the cleaning and disinfecting of the tanks normally with the use of high-pressure water or soft brush as appropriate and DWI Approved disinfectant. In some instances, it may be a requirement to carry out chemical cleaning with the use of a DWI approved chemical.
The tasks to be carried out will include:
• Cleaning and disinfection of potable water storage tanks using appropriate methods and DWI-approved products
• Inspection of service reservoirs as part of cleaning activities
Maintenance
Maintenance activities are usually identified at the time of cleaning by the Supplier and instructed by DCC to enable the tanks to be safely returned to service. These tend to be internal and external works for concrete repairs and coatings, internal and external steel repairs, membrane fitting and repairs, replacement of ladders and pipework, joint repairs, external earthworks repairs and joint repairs. Emergency reactive repairs to concrete/ pipework / liner etc. may also be required on occasion. These works will exclude any work that involves significant engineering difficulties such as:
• Any structural modifications to the tank(s);
• Any works on the embankments surrounding the tank(s);
• Any modifications to the pipework that can influence the hydraulic performance of the tank(s);
• Any works that alters the operating capacity of the tanks;
• Any works that constitutes the appointment of a Panel Engineer under the Reservoirs Act.
The tasks to be carried out will include:
• Minor planned and reactive remedial works, including concrete and steel repairs, coatings, membranes, ladders, pipework, joints and external earthworks.
• Emergency reactive repairs where required.
• Activities necessary to support the safe return of reservoirs to service.
The Framework Agreement will be procured as a single Lot, with two Suppliers appointed to the Framework.
How the procedure runs: The procurement will be conducted using the Competitive Flexible Procedure under section 20 of the Procurement Act 2023, comprising a Conditions of Participation stage followed by two ITT rounds. Suppliers meeting the proportionate Conditions of Participation will progress to ITT Round 1, with the Authority retaining the right to more…
limit supplier numbers through the published selection methodology. Suppliers progressing to the ITT stage will be expected to facilitate a site visit. ITT Round 1 may include clarification and negotiation, followed by an intermediate assessment and down-selection of suppliers. The Authority may then undertake further negotiation with shortlisted suppliers and, where expressly provided for in the procurement documents, refine the award criteria and their relative importance in accordance with section 24, before issuing ITT Round 2 and requesting final tenders. Final tenders will be evaluated against the final published award criteria and assessment methodology, with the Contract awarded to the supplier submitting the Most Advantageous Tender (MAT) under section 19.
CPV: Miscellaneous repair and maintenance services · Repair and maintenance services of tanks · Tank and reservoir cleaning services · Tank-cleaning services
How this framework works
From the published notice- Type
- Closed framework
- Call-offs
- call-offs may be awarded directly or by further competition
- Framework period
- 3 yrs · up to 8 yrs from 15 May 2027
Published description of the framework
Under PA23, the framework will set out a clear and objective call-off mechanism in advance. Routine work will be allocated between the two appointed suppliers using predetermined criteria, including: • geographic coverage • capacity • workload • supplier performance Higher-value or more complex requirements may be subject to a competitive selection process between the appointed Suppliers (mini-competition), with the applicable award criteria set out in the Framework Agreement documentation. DCC will also retain the ability to allocate work to the alternative supplier where the preferred supplier cannot meet the required capacity or service levels. Supplier performance will be reviewed periodically and may inform future work allocation where this methodology and the relevant performance measures are clearly established in the Framework.
The lotProcurement structure
single lot · value publishedLot #1Lot 1RenewalPublished value£25,500,000
- Value
- £25,500,000 exc. VAT · £30,600,000 inc. VAT
- Extensions
- The contract can be extended for a maximum of 5 years (2 + 2 + 1 years), based on supplier performance and operational circumstances.
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published — the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (2)
- Technical — 40%
- Commercial — 60%
Competition analysis · published record, not a forecast of who will bid
How Dwr Cymru Cyfyngedig buys Cleaning services (CPV 9091) — and who usually turns up
Dwr Cymru Cyfyngedig’s own published record, next to the Wales (Cymru) market for the same work. This notice is a framework or DPS, so only frameworks and DPS are compared. Whole-market view: Cleaning services (CPV 9091) →
How the contest usually goes
Left: this authority. Right: the market where the work is delivered. Bids and award-vs-estimate pairs are per lot, from contested frameworks and DPS only — direct awards (including PA 2023 transparency notices) report one bid by definition and are left out. On Procurement Act 2023 notices the count is the tenders assessed at the final stage, not every submission received; pairs compare like with like (VAT-exclusive, or VAT-inclusive on both sides). Empty means nothing was published, not filled in from elsewhere.
i
How many companies usually bid for work like this.
Middle value of published bid counts, one per lot, for this buyer or this region in the same sector.
Based on this buyer’s tenders in all categories, last 36 months: 11 lots. All 11 lots are from older notices, which count bids received.
Nothing is filled in from UK-wide numbers. An empty tile means nothing usable was published.
i
How often only one company bid.
Share of lots that received exactly one bid, on the same competitions as the bids figure.
Based on this buyer’s tenders in all categories, last 36 months: 11 lots.
High means a thin market or an incumbent that is hard to beat.
i
Do awards for work like this land above or below the estimate.
Estimate against award per lot, for this buyer or this region in the same sector.
Based on this buyer’s tenders in all categories, last 24 months: 3 pairs.
A past pattern, not a price to bid.
i
How long buyers here take to decide after bids close.
Middle value in days from the deadline to the first award notice, on competitions that published both dates.
Based on this buyer’s tenders in all categories, last 36 months: 1 notices. Small sample.
Only decided tenders count, so slow ones still waiting are not in.
i
How often this buyer changes a notice after publishing it.
Middle number of amendments per notice. Deadline extensions and corrections both count.
Based on this buyer’s tenders in all categories, last 24 months: 15 notices.
i
How often this buyer awards without a competition.
Direct or limited awards as a share of its notices that say which procedure was used. These routes are legal in defined cases. This is just the record.
Based on this buyer’s tenders in all categories, last 36 months: 10 notices.
Wales (Cymru) · Cleaning services (CPV 9091)
framework/DPS notices delivered in Wales (Cymru) in 36 months: 31 in CPV 9091 (28 competed, 3 route not published) · 137 in division 90 (118 competed, 16 route not published) · the notice publishes no delivery location, so the authority’s registered region is used
i
How many companies usually bid for work like this.
Middle value of published bid counts, one per lot, for this buyer or this region in the same sector.
Based on this region’s tenders in this sector (CPV 9091), last 36 months: 19 lots. 6 lots are from Procurement Act 2023 notices (bids assessed, middle 9.5) and 13 from older notices (bids received, middle 3).
Nothing is filled in from UK-wide numbers. An empty tile means nothing usable was published.
i
How often only one company bid.
Share of lots that received exactly one bid, on the same competitions as the bids figure.
Based on this region’s tenders in this sector (CPV 9091), last 36 months: 19 lots.
High means a thin market or an incumbent that is hard to beat.
i
Do awards for work like this land above or below the estimate.
Estimate against award per lot, for this buyer or this region in the same sector.
Nothing published for this region in this sector: not measured on frameworks — a panel award is a ceiling, not a price.
A past pattern, not a price to bid.
i
How long buyers here take to decide after bids close.
Middle value in days from the deadline to the first award notice, on competitions that published both dates.
Based on this region’s tenders in this sector (CPV 9091), last 36 months: 3 notices.
Only decided tenders count, so slow ones still waiting are not in.
i
How much of this market goes to small and medium firms.
SME bidders where buyers published the split, otherwise SME winners.
Based on this region’s tenders in this sector (CPV 9091), last 36 months: 17 lots.
i
How much work like this goes to companies based in the delivery region.
Awards in this category delivered here where the winner’s registered address is in the region.
Based on this region’s tenders in this sector (CPV 9091), last 36 months: 23 awards.
Registered address, so a national firm with a local branch counts as outside.
i
Where this tender’s estimate would land if the usual pattern repeats.
We apply the buyer’s usual movement between estimate and award (or the region’s) to the estimate on this notice.
Based on 3 lots, so only the direction is shown, not a pound figure.
A benchmark, not a price to bid.
Coverage and what to read with care
- Each tile explains itself. The on a figure says what it is, how it is counted and which scope this notice’s own record came from (class, division, all categories, or the authority’s 24-month row). The two columns are never blended and nothing is filled from a UK-wide figure; an empty tile means the source published nothing usable. Long form: Methodology.
- Coverage. Roughly 40 % of notices publish a bid count; about half publish an ITL1 delivery location, so the market column reads the authority’s registered region when the notice has none (labelled). About 30 % of award-vs-estimate pairs are exact matches — the buyer published the award at the estimate. n is on every figure; a thin sample is muted, never hidden.
- “Match” and “relevance” are model scores from the nightly matcher, not published facts. Find a Tender does not publish who is bidding. Never shown: contact details, payment behaviour, or a recommended price.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Services
- Notice status
- Open admission
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Utilities
- Commercial structure
- Framework agreement
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- No (one-off requirement)
- First published
- 6 Oct 2026, 14:55 BST
- Last source update
- 6 Oct 2026, 14:55 BST
- Award evaluation window
- Submission end — 1 Apr 2027, 23:59 BST
- Authority reference
DCWW2115- Latest notice
- Tender notice (UK4)
- Classification (CPV)
- Delivery area
- Not published
- Official registry OCID
ocds-h6vhtk-0781d8Find a Tender
- How it runs
The procurement will be conducted using the Competitive Flexible Procedure under section 20 of the Procurement Act 2023, comprising a Conditions of Participation stage followed by two ITT rounds. Suppliers meeting the proportionate Conditions of Participation will progress to ITT Round 1, with the Authority retaining the right to limit supplier numbers through the published selection methodology. Suppliers more…
progressing to the ITT stage will be expected to facilitate a site visit. ITT Round 1 may include clarification and negotiation, followed by an intermediate assessment and down-selection of suppliers. The Authority may then undertake further negotiation with shortlisted suppliers and, where expressly provided for in the procurement documents, refine the award criteria and their relative importance in accordance with section 24, before issuing ITT Round 2 and requesting final tenders. Final tenders will be evaluated against the final published award criteria and assessment methodology, with the Contract awarded to the supplier submitting the Most Advantageous Tender (MAT) under section 19.
- Risks
- Documents will be provided free of charge via the DCC eSourcing Portal: dwrcymru-welshwater.bravosolution.co.uk ↗
How to participate & submission route
Official notice Apply via Jaggaer- Expression of interest (EOI)
- —
- Appointment period ends
- 2 Nov 2026, 23:59 GMT
- Clarification deadline
- —
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
Participation instructions — how to express an interest in this opportunity. 1) Register your organisation on the DCC eSourcing Portal (this is only required once so please check whether there is an existing account registered for your organisation — multiple users can be added as required); 2) Express an interest in the opportunity: — log in to the portal with your username and password, — click the 'PQQs/ ITTs Open to all Suppliers' link, — click on the relevant PQQ/ ITT more…
to access the content, — click the 'Express Interest' button at the top of the page — this will move the PQQ/ ITT into your 'My PQQs/ITTs' page (this is a secure area reserved for your projects only), — you can now access any attachments by clicking 'Attachments' in the 'PQQ/ ITT details' box. 3) Responding to the Opportunity — click 'My Response' under 'PQQ/ ITT details'. You can choose to 'Create response' or 'Decline to Respond', — you can now use the messaging function to communicate with the buyer and seek any clarification, — note the deadline for completion and follow the onscreen instructions to complete your response — there may be a mixture of online and offline actions for you to perform, — you must then submit your reply using the 'Submit Response' button at the top of the page. Please Note the following — you must download the documents yourself after you have expressed interest, they will not be sent to you, — expressions of Interest will ONLY be accepted through the eSourcing Portal — all documentation must be returned electronically via the eSourcing Portal, — if you require any further assistance please consult the online help, or contact the eSourcing helpdesk using the contract information provided on the home page. Participation instructions — how to express an interest in this opportunity. 1) Register your organisation on the DCC eSourcing Portal (this is only required once so please check whether there is an existing account registered for your organisation — multiple users can be added as required); 2) Express an interest in the opportunity: — log in to the portal with your username and password, — click the 'PQQs/ ITTs Open to all Suppliers' link, — click on the relevant PQQ/ ITT to access the content, — click the 'Express Interest' button at the top of the page — this will move the PQQ/ ITT into your 'My PQQs/ITTs' page (this is a secure area reserved for your projects only), — you can now access any attachments by clicking 'Attachments' in the 'PQQ/ ITT details' box. 3) Responding to the Opportunity — click 'My Response' under 'PQQ/ ITT details'. You can choose to 'Create response' or 'Decline to Respond', — you can now use the messaging function to communicate with the buyer and seek any clarification, — note the deadline for completion and follow the onscreen instructions to complete your response — there may be a mixture of online and offline actions for you to perform, — you must then submit your reply using the 'Submit Response' button at the top of the page. Please Note the following — you must download the documents yourself after you have expressed interest, they will not be sent to you, — expressions of Interest will ONLY be accepted through the eSourcing Portal — all documentation must be returned electronically via the eSourcing Portal, — if you require any further assistance please consult the online help, or contact the eSourcing helpdesk using the contract information provided on the home page. https://dwrcymru-welshwater.bravosolution.co.ukTimeline
4 published dates · Europe/London- Tender notice publishedearlier today6 Oct 2026, 14:55 BST
- Admission / appointment period endsin 27 days · period end, not a bid countdown2 Nov 2026, 23:59 GMT
- Award decision expected byin 177 days1 Apr 2027, 23:59 BST
- Contract startsin 220 days15 May 2027, 00:00 BST
Commercial outcome & contract awards
Nothing awarded yet- Awards (0)
- No award published
- Contracts (0)
- No contract published
- Bid statistics
- No aggregate bid statistics published
Notice history
1 event · 1 release on Find a Tender- Tender notice published6 Oct 2026, 14:55 BSTUK4
Contracting authority & participating public bodies
Official documents & specifications (2)
Official links; attachments are not copiedTender pack and attachments
- Conflict of interest declarationNot published
Notices published for this procedure
- Tender notice Tender notice on Find a Tender