Find a Tender · Historical
Groundwater Level Network Review – Standard Groundwater Index modelling of 40 sites across Wales
Historical: no longer open for bids.
01/ The notice
Key facts
- Value
- Not statedValue not stated in source
- Deadline (UK time)
- No open deadlineA deadline does not apply to this historical notice.
- Published
- 27 Aug 2025
- Region
- Not stated
02/ The brief
What the notice says
Not fully read: this is the notice text; attached documents are not read.
The Geoscience Team have set up a project to review the groundwater level data we hold from
across our groundwater monitoring network (130 sites). We have chosen 40 site to look at in
more detail using the modelling code the British Geological Survey (BGS) have developed to
get a standard groundwater index (SGI).
The aim of the project is to use the AquiMod 2 groundwater model (Mackay et al. 2022) in
conjunction with historical, bias corrected climate data to reconstruct daily groundwater level time series back to 1894 at each borehole, before calculating an equivalent standardised time
series which can be used to assess the historical occurrence of groundwater drought at each
borehole.
Once the data is processed through the modelling code, we (NRW in house) can then use this
data to compare and review groundwater levels from sites with different geologies and
geographical areas from around Wales in a standardised way. This allows analysis of drought
response and allow us to consider drought management in the future.
The BGS have developed the modelling code to determine the SGI. They are the only
organisation within the UK that can use the modelling code as the code is not commercially
available. As the BGS are the only organisation we must follow the Single Tender Action
procurement process to secure a contact for the works.
03/ Classification
CPV codes
Common Procurement Vocabulary codes, exactly as the notice lists them. No descriptions are added here.
- 72316000
- 72319000
04/ History
Releases of this notice
One release held, oldest first. Dates are UK time.
- 27 Aug 2025Notice
Notice published 27 August 2025.
Release 051638-2025
View this release on Find a Tender (opens in a new tab)
05/ Limits
What the source does not tell us
- The source does not state a usable value.
- Only one release is held, so there is no change history.
06/ Questions
About this notice
07/ Tender hubs
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08/ Related
Where to go next
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- Reference
- ocds-h6vhtk-058ea7
- Source
- Find a Tender
- Stage
- award · Awarded
- Last verified
- Mon 6 Apr 2026, 20:45 BST
- Read at
- Fri 23 Oct 2026, 13:36 BST
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