Source: https://tendernation.io/opportunities/01a13be8-b795-7124-9347-29af074e61b3/es-rde-075-review-and-update-of-two-ea-groundwater-contaminant-excel-models awarded GB restricted procedure # ES RDE 075 - Review and update of two EA groundwater contaminant Excel models [Environment Agency](https://tendernation.io/buyers/environment-agency) Estimated value Not stated Published 1 Sept 2026 Deadline Rolling deadline ## About this tender Environment Agency Self-Service Direct Award. The EA would like a contractor to peer review the updated P20 spreadsheet (v4) and the current J5 spreadsheet. This should include checking for, and addressing the error above as well as a full review of all worksheets (including the implementation of equations in each) within each spreadsheet to provide complete and independent quality assurance of them. The outputs will be shared with the CLAIRE technical group for review. Should CLAIRE provide comments that require changes to the outputs, the EA would like these addressed by the contractor. Source Find a Tender (UK) · Notice ocds-h6vhtk-06eff6-2026-09-01T17:03:51+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06eff6-2026-09-01T17:03:51+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Environment Agency: past awards and live tenders](https://tendernation.io/buyers/environment-agency) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Custom made Cranial Plates Tender · Cambridge University Hospitals NHS Foundation Trust · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a158c1-0673-726d-b0b6-25ad41206a9b/custom-made-cranial-plates-tender) [The Supply 3 kg of Lithium Metatitanate (Li₂TiO₃) Pebbles · UK Atomic Energy Authority · 16 days left · 4 Nov 2026](https://tendernation.io/opportunities/01a158c1-06c3-70fe-b568-0b87ffbbf163/the-supply-3-kg-of-lithium-metatitanate-li2tio3-pebbles) [Tees Bird Mapping Project · Natural England · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a158c1-0a39-72df-aac0-991d1747cd02/tees-bird-mapping-project) [Engineering works and construction works – Integrated Partnerships Framework · Northern Ireland Water · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-7b9a-73c9-b710-2a5021d3fa0d/united-kingdom-engineering-works-and-construction-works-integrated-partnersh) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment)