Closed tender

Flow Derivation Reviews

Environment Agency · up to £42,000

This tender has closed (deadline was 15 September 2026). Similar contracts are published all the time — see the live tenders by sector or get alerts so you hear the day the next one lands.

What the buyer wants

This project will undertake flow derivation reviews at 13 selected Environment Agency gauging stations to assess the accuracy, reliability and suitability of existing flow derivation methods. The reviews will examine current methodologies, identify limitations and uncertainties affecting the quality of derived flow records. Where justified by the available evidence, improved flow derivation methods and ratings will be developed, including the derivation of a modelled high-flow rating for one specified station if sufficient.

Key facts

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