- Lot 1. Clean Water Microbiology (Gelvin Grange Laboratory)
- Lot 2. Clean Water Microbiology (Westland House Laboratory)
- Lot 3. Waste Water Microbiology Laboratory (Gelvin Grange Laboratory)
- Lot 4. Waste Water Microbiology (Gelvin Grange Laboratory):
- Lot 5. Cryptosporidium Testing (Gelvin Grange Laboratory)
- Lot 6. Cryptosporidium Testing 2 (Gelvin Grange Laboratory)
- Lot 7. Cryptosporidium laboratory (Gelvin Grange)
- Lot 8. Waste Water Chemistry (Gelvin Grange Laboratory).
- Lot 9. Clean Water Chemistry (Westland House Laboratory)
Scope
Reference
T123
Description
This contract shall provide a comprehensive External Proficiency Testing Scheme (EPTS) services across a range of specific testing disciplines as outlined within the tender documents, but not limited to, the Altnagelvin (testing lab no: 2148) and Westland House Laboratory (testing lab no: 1835) UKAS schedules of accreditation and including the onboarding of new laboratory methodologies. This will include the design, coordination, and delivery of interlaboratory comparisons, as well as the provision of detailed statistical analysis and reporting on the outcomes. The testing disciplines are divided into nine (9) Lots, suppliers can bid for any number of Lots but must provide all items within the Lot/s tendered for.
Total value (estimated)
- £434,000 excluding VAT
- £520,800 including VAT
Above the relevant threshold
Contract dates (estimated)
- 22 December 2025 to 21 December 2027
- Possible extension to 21 December 2030
- 5 years
Description of possible extension:
Initial period, of two (2) years with three (3) extensions of up to twelve months each
Options
The right to additional purchases while the contract is valid.
Options to procure additional tests of similar nature
Main procurement category
Services
CPV classifications
- 71900000 - Laboratory services
Lot constraints
Maximum number of lots a supplier can bid for: 8
Maximum number of lots a supplier can be awarded: 8
Lot 1. Clean Water Microbiology (Gelvin Grange Laboratory)
Description
Lot 1: Clean Water Microbiology (Gelvin Grange Laboratory): covers drinking/potable and recreational/surface water microbiology testing.
Lot value (estimated)
- £14,000 excluding VAT
- £16,800 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 2. Clean Water Microbiology (Westland House Laboratory)
Description
Lot 2: Clean Water Microbiology (Westland House Laboratory): covers drinking/potable and recreational/surface water microbiology testing.
Lot value (estimated)
- £14,000 excluding VAT
- £16,800 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 3. Waste Water Microbiology Laboratory (Gelvin Grange Laboratory)
Description
Lot 3: Waste Water Microbiology Laboratory (Gelvin Grange Laboratory) covers Recreational & Surface Water Microbiology testing).
Lot value (estimated)
- £6,000 excluding VAT
- £7,200 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 4. Waste Water Microbiology (Gelvin Grange Laboratory):
Description
Lot 4: Waste Water Microbiology (Gelvin Grange Laboratory): Surface Waste/Bathing Water microbiological testing..
Lot value (estimated)
- £5,000 excluding VAT
- £6,000 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 5. Cryptosporidium Testing (Gelvin Grange Laboratory)
Description
Lot 5: Cryptosporidium Testing (Gelvin Grange Laboratory) - The supplier shall provide proficiency testing for Cryptosporidium in potable, surface, ground, and raw water at Gelvin Grange Laboratory.
Lot value (estimated)
- £8,000 excluding VAT
- £9,600 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 6. Cryptosporidium Testing 2 (Gelvin Grange Laboratory)
Description
Lot 6: Cryptosporidium Testing (Gelvin Grange Laboratory)- The supplier shall provide proficiency testing for Cryptosporidium in potable, surface, ground, and raw waters at Gelvin Grange Laboratory.
Lot value (estimated)
- £92,000 excluding VAT
- £110,400 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 7. Cryptosporidium laboratory (Gelvin Grange)
Description
Lot 7: Cryptosporidium laboratory (Gelvin Grange); The supplier shall provide proficiency testing for the detection and enumeration of coliphages and Legionella in drinking/potable water at Gelvin Grange Laboratory.
Lot value (estimated)
- £5,000 excluding VAT
- £6,000 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 8. Waste Water Chemistry (Gelvin Grange Laboratory).
Description
Lot 8: Waste Water Chemistry (Gelvin Grange Laboratory). - The supplier shall provide proficiency testing for chemical analysis of wastewater, surface waters, groundwaters, and industrial effluents at Gelvin Grange Laboratory.
Lot value (estimated)
- £90,000 excluding VAT
- £108,000 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Lot 9. Clean Water Chemistry (Westland House Laboratory)
Description
Lot 9: Clean Water Chemistry (Westland House Laboratory) - The supplier shall provide proficiency testing for chemical analysis of potable, surface, and groundwaters at Westland House Laboratory.
Lot value (estimated)
- £200,000 excluding VAT
- £240,000 including VAT
Same for all lots
CPV classifications, contract dates and options are shown in the Scope section, because they are the same for all lots.
Participation
Particular suitability
Lot 1. Clean Water Microbiology (Gelvin Grange Laboratory)
Lot 2. Clean Water Microbiology (Westland House Laboratory)
Lot 3. Waste Water Microbiology Laboratory (Gelvin Grange Laboratory)
Lot 4. Waste Water Microbiology (Gelvin Grange Laboratory):
Lot 5. Cryptosporidium Testing (Gelvin Grange Laboratory)
Lot 6. Cryptosporidium Testing 2 (Gelvin Grange Laboratory)
Lot 7. Cryptosporidium laboratory (Gelvin Grange)
Lot 8. Waste Water Chemistry (Gelvin Grange Laboratory).
Lot 9. Clean Water Chemistry (Westland House Laboratory)
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
17 November 2025, 4:00pm
Tender submission deadline
25 November 2025, 12:00pm
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
17 December 2025
Recurring procurement
Publication date of next tender notice (estimated): 22 July 2030
Award criteria
| Name | Description | Type |
|---|---|---|
| Mandatory Criteria | Confirmation of Compliance with Specification |
Quality |
| Social Value | Social Value Themes |
Quality |
Weighting description
Pass/Fail
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Special regime
Utilities
Contracting authority
NI Water and its' Subsidiaries
- Public Procurement Organisation Number: PCZH-7295-JJTZ
Westland Road
Belfast
BT14 6TE
United Kingdom
Email: sourcing@niwater.com
Region: UKN06 - Belfast
Organisation type: Public authority - sub-central government
Devolved regulations that apply: Northern Ireland