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.
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 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 publishedWhat 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%
Published award criteria (2)
- Technical
- Commercial
- Price carries 60 of 100 points: a 10% discount moves about 6 points. This one is won on the number: sharpen the price before polishing the prose.
- “DCWW2115 Service Reservoir Cleaning, Maintenance and Refurbishment CoP” is a framework: the contest is a place on its panel, not a single contract: call-offs may be direct or by further competition.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Competition analysis · published record, not a forecast of who will bid
How Dwr Cymru Cyfyngedig buys Repair and maintenance services of pumps, valves, taps and metal containers (CPV 5051), and who usually turns up
Dwr Cymru Cyfyngedig’s published record next to the market for the same work. Compared with other frameworks and DPS only. Whole-market view: Repair and maintenance services of pumps, valves, taps and metal containers (CPV 5051) →
How the contest usually goes
Winner shares use published awards; bid and price charts use contested lots.
i
How often small and medium firms win.
Share of awards where the winner’s size is known.
The counts under this question show how many awards have a known supplier size.
No small-firm winners recorded among this authority’s published awards in this sample.
i
How often local firms win similar work.
Winners with a registered address in the delivery region, out of awards with a known address.
Local means the winner is registered in the region where that award was delivered.
A local branch does not count if the registered address is elsewhere.
Most of this buyer’s recorded winners were registered outside the region where that award was delivered.
i
How long buyers here take to decide after bids close.
Middle value in days from the bid deadline to the award date, on competitions that published both.
Only decided tenders count, so slow ones still waiting are not in.
Half of these awards have an award date within 39 days of the bid deadline.
i
How often work is awarded with no recorded rival.
Direct awards and tenders where every published lot count shows one bid.
The market share is a minimum: some awards have no bid count.
Thin markets produce this too; it is not proof of a tailored specification.
Awards are recorded, but published direct routes and bid counts do not establish this buyer’s share.
How many bids did past lots attract?
i
How many bids past lots received.
Each colour is a bid-count range. Only competed lots with a published count are included.
Past bids do not predict this tender.
1 bid0% / 4%
2–30% / 35%
4–688% / 17%
7+13% / 43%
How did awards compare with estimates?
i
Where winning prices landed against estimates.
Each colour shows awards below, close to or above the published estimate, one lot at a time.
On a framework or DPS, prices are agreed when work is called off.
Past prices are a guide, not a bid price.
Not comparable on a framework or DPS: the price is set later, on each call-off.
Assess each lot i
What past awards tell you about each lot.
See the forecast, this buyer’s earlier suppliers and firms with relevant wins.
No supplier is confirmed as a bidder.
i
What past awards tell you about each lot.
See the forecast, this buyer’s earlier suppliers and firms with relevant wins.
No supplier is confirmed as a bidder.
Open a lot for its forecast, this buyer’s previous supplier and possible competitors, from published award history, not a bid list
Lot #1CPV 5051Published estimate£26m
i
How many bids this lot may attract.
The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.
Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative.
A forecast, not a list of bidders.
1 bid0%
2–34%
4–669%
7+27%
i
Where the award price may land.
The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.
No comparable awards for this lot yet.
A statistical guide from past awards, not a price to bid.
Who has supplied this buyer on similar work? i
Who has done similar work for this buyer.
Past contracts are matched by buyer, title and type of work.
A past supplier may not bid again.
i
Who has done similar work for this buyer.
Past contracts are matched by buyer, title and type of work.
A past supplier may not bid again.
No earlier contract of this buyer matches this lot on the published record.
Who could compete for this lot? i
Who could compete for this lot?
Firms with relevant past wins. On a framework, we show firms on that agreement.
None is confirmed as a bidder.
i
Who could compete for this lot?
Firms with relevant past wins. On a framework, we show firms on that agreement.
None is confirmed as a bidder.
| Supplier | Won in this category | Live contracts | Award vs estimate |
|---|---|---|---|
| £287m47 awards in 36m · last this month | 15 live · £100m iPublic contracts this supplier still holds. Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book. Unexpired says nothing about spare capacity. | at estimate n=26 | |
| £71m37 awards in 36m · last this month | 6 live · £9.6m iPublic contracts this supplier still holds. Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book. Unexpired says nothing about spare capacity. | 6% below n=16 | |
| £7.6m19 awards in 36m · last this month | 10 live · £7.4m iPublic contracts this supplier still holds. Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book. Unexpired says nothing about spare capacity. | 3% below n=10 | |
Hologic LtdLarge | £3.8m33 awards in 36m · last 1 month ago | 13 live · £1.6m iPublic contracts this supplier still holds. Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book. Unexpired says nothing about spare capacity. | at estimate n=1 |
| £926k9 awards in 36m · last 2 months ago | 4 live · £281k iPublic contracts this supplier still holds. Its awards whose published end date is still in the future, with their values. Many contracts publish no end date, so this is a floor, not the whole book. Unexpired says nothing about spare capacity. | 7% below n=1 |
About this data
- Source. Official UK public procurement notices (Find a Tender), reused under the Open Government Licence v3.0. New notices arrive through the day; the figures are rebuilt nightly.
- Two views, kept apart. The authority’s own track record and the wider market for the same kind of work sit side by side and are never mixed. Where the local picture is too thin, a figure widens to a broader market and says which one it used.
- Forecasts are labelled. The price forecast and its range, possible competitors and the earlier-work matches are our estimates from past awards: not published facts, not win chances and not price advice. Official notices do not say who is bidding.
- Every figure shows what it rests on. Not every notice publishes a bid count, a value or a delivery region, so each figure carries the number of records behind it, and one built on few records is marked as such. The on a figure explains it; the counting rules are in the methodology. Spotted something wrong? Tell us.
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
- Who may use this agreement
- Not stated in the notice; call-off rights may be limited to the establishing authority
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- 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
- Authority reference
DCWW2115- FTS notice number
2026/S 000-094342- 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 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- Requests to participate (first stage)
- —
- 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.
- 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);
- 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.
- 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.
- 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);
- 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.
- 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.
Timeline
6 Oct 2026 → 15 May 2027 · 4 dates- Tender notice published22 days ago6 Oct 2026, 14:55 BST
- Today28 Oct 2026
- Admission / appointment period endsin 5 days · period end, not a bid countdown2 Nov 2026, 23:59 GMT
- Award decision expected byin 155 days1 Apr 2027, 23:59 BST
- Contract startsin 198 days15 May 2027, 00:00 BST
Notice history
1 event · 1 release on Find a Tender- Tender notice published6 Oct 2026, 14:55 BSTUK4
Commercial outcome & contract awards
Nothing awarded yet- Awards (0)
- No award published
- Contracts (0)
- No contract published
- Bid statistics
- No aggregate bid statistics published
Contracting authority & participating public bodies
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
- Tender notice Tender notice on Find a Tender