Feasibility Study for Wetland Treatment of Surface Water Run-off at Nailsea Outfall
Defra Network eTendering Portal · Awarded contract
AwardedFeasibility Study for Wetland Treatment of Surface Water Run-off at Nailsea Outfall
Awarded 22 Jan 2018
Ended 8y 7mo ago2mo term
Awarded 22 Jan 2018Expired 30 Mar 2018
About
Defra Network eTendering Portal awarded a contract to HR Wallingford for a desk-based feasibility study to improve water quality entering the SSSI from the urban area of Nailsea.
The study assessed the feasibility of a wetland system to treat surface water run-off, identified surface water flow paths for siting sustainable drainage systems (SUDs) and constructed wetlands, and evaluated the impact of proposed 5000+ new homes on run-off.
It also aimed to provide multi-benefits such as amenity value and a high-quality ecological wetland resource.
The contract value was £28,955.
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Feasibility Study for Wetland Treatment of Surface Water Run-off at Nailsea Outfall
Won by HR Wallingford · Defra Network eTendering Portal
£29Kawarded
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Remediation of Foul and Surface Water Drainage at Three Elms Trading Estate, HerefordWater & Sanitation · Closes 11 Nov 2026
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Key requirementsFrom 12 documents
Who can bidRegistered commercial cleaners
Mandatory criteriaPolice checks for staff on site
How it is scoredPrice 40%, experience 35%, method 25%
Insurance£20M public liability
Key datesSite visit 14 Oct, closes 28 Oct
Est. value£1.2M – £1.8M
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