--- title: "Annual Outfall 10 Diffuser Inspection" ocid: "ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9.json" source: "Contracts Finder" current_stage: "Award" buyer: "DOUNREAY SITE RESTORATION LIMITED" published: "2019-05-01" --- # Annual Outfall 10 Diffuser Inspection Buyer: DOUNREAY SITE RESTORATION LIMITED Current stage: Award OCID: ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9.json) ## Summary Dounreay Site Restoration Limited has awarded a contract for the "Annual Outfall 10 Diffuser Inspection," aimed at conducting inspections from 2019 to 2022. This project falls under the technical inspection services industry and will occur at the Outfall 10 location, approximately 0.25 nautical miles from the Dounreay Site, where the water depth is 25 metres. The inspection period is scheduled annually between 1 April and 31 July, with the most recent contract formally awarded on 29 March 2019, valued at £110,000, through a selective procurement method. This tender presents significant growth opportunities for businesses specialising in technical inspection and diving services, especially those able to provide comprehensive reporting and risk assessments. Companies with experience in handling technical inspections of engineering structures, particularly those familiar with marine environments and underwater inspection techniques, would find this contract particularly suitable. The inclusion of small and medium-sized enterprises (SMEs) in the procurement process highlights the potential for diverse suppliers to engage in this sector. ## Notice A contract has been awarded for the Annual Inspection of the Outfall 10 Diffuser for four years from 2019 - 2022. The inspection must be carried out between 1 April and 31 July each year. The location of the outfall diffuser (Outfall 10), which discharges low level radioactive liquid effluent, is approximately 0.25 N.M from the Dounreay Site. Water depth is 25m below Chart Datum in a tidal range of 3.5m. The diffuser structure is ~ 10metres long x 8 metres wide x 3 metres in height. The inspection will include: 1. Carry out an 'as found' visual survey of the Outfall 10 Diffuser, the (9 off) Duckbill valves numbered 4 - 12 and (3 off) blank flanges numbered 1 - 3. 2. Clean marine growth from the duckbill valves and blank flanges. 3. Clean marine growth from the interior of the chamber and the outer parapet. 4. a) Check duckbills, nuts and bolts for integrity and security. A decision as to whether any other duckbills require to be replaced will be made at the time of inspection. b) Replacement split rings will be provided by DSRL. 5. Carry out an inspection of the outer chamber and concrete plinth, taking particular note of the condition of the south east corner. 6. Clean all areas of the chamber and base as directed. 7. After inspection carry out any repairs that may be required. 8. Record on DVD all areas of work carried out including commentary of work being carried out. This will include identification of the duckbill valves 4 -12, blank flanges 1-3 and the four corners of the parapet as a minimum. 9. Any other work required would be discussed on the day and a forward plan identified. This may include a visual check only on the condition of the old risers to verify that they are not diffusing if time allows. 10. Provide a Report to DSRL which includes: * A description of all works carried out. * A daily Dive Log. * A summary of the inspection which includes recommendations for subsequent surveys. 11. The provision of a Safe System of Work which includes Method Statement, Risk Assessment and Local Rules. 12. Pre dive and equipment check lists should also be provided by the Contractor. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/7f3c6129-1c00-4542-9a5e-1cd62f3a1968 | | Notice type | Award Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Restricted procedure | | Tender suitability | SME | | Awardee scale | Large | | All stages | Award | ## Dates | Field | Value | | --- | --- | | Publication date | 1 May 2019 | | Submission deadline | 17 Jan 2019 | | Future notice date | Not specified | | Award date | 29 Mar 2019 | | Contract period | 30 Apr 2019 - 31 Jul 2022 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £120,000 | | Lots value | Not specified | | Awards value | £110,000 | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Complete | | Lots status | Not specified | | Awards status | Active | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | DOUNREAY SITE RESTORATION LIMITED | | Locality | THURSO, CAITHNESS | | Post town | Kirkwall | | Postcode | KW14 7TZ | | Country | Scotland | | ITL 1 | TLM Scotland | | ITL 2 | TLM2 Highlands and Islands | | ITL 3 | TLM20 Highlands and Islands | | Local authority | Highland | | Electoral ward | Thurso and Northwest Caithness | | Westminster constituency | Caithness, Sutherland and Easter Ross | | Delivery location | Not specified | ## Supplier | Field | Value | | --- | --- | | Number of suppliers | 1 | | Supplier names | CALDIVE | ## CPV Codes ### Divisions - 71 - Architectural, construction, engineering and inspection services - 98 - Other community, social and personal services ### Codes - 71631000 - Technical inspection services - 71631400 - Technical inspection services of engineering structures - 98363000 - Diving services ## Release History - 1 May 2019 at 13:00 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/7f3c6129-1c00-4542-9a5e-1cd62f3a1968 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/7f3c6129-1c00-4542-9a5e-1cd62f3a1968 1st May 2019 - Awarded contract notice on Contracts Finder - https://sharedsystems.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=11267&B=DSRL Additional data - https://sharedsystems.eu-supply.com/ctm/Company/CompanyInformation/Index/9689 User / Company ## 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-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-93d9d7b8-58ac-4574-8f14-91ecd1aee8b9.json.