Nutscale Reservoir

Nutscale Reservoir
Nutscale Reservoir
LocationExmoor, Somerset, England
Coordinates51°10′37″N 3°37′52″W / 51.177°N 3.631°W / 51.177; -3.631
Primary inflowsNutscale Water
Primary outflowsNutscale Water
Managing agencyWessex Water
Built1942
Surface area8 acres (3.2 ha)
Average depth12.2 metres (40 ft)
Water volume277,000 m3 (225 acre⋅ft)
Shore length11,140 metres (3,740 ft)
1 Shore length is not a well-defined measure.

Nutscale Reservoir is a reservoir located in Exmoor in north west Somerset, England. It was intended to supply the town of Minehead and nearby Porlock and Porlock Weir.[1] The reservoir is part of the River Horner catchment area and is fed by Nutscale Water . The reservoir is no longer used for public drinking water supply.[2]

The reservoir was built in 1942.[3] A mass concrete gravity arch dam, 90m along the crest and 14m high[4] impounds 36,000,000 imperial gallons (160,000,000 L; 43,000,000 US gal). This was intended to relieve summer droughts in Minehead.[5]

High levels of geosmin were recorded in 2008.[6] To manage the effects of this on tap water systems were developed to remove this reservoir from the drinking water supply when necessary and flush the pipe carrying the water.[7]

The site is operated by Wessex Water whose drought plan suggests that six months would be required to bring Nutscale back into supply operations in a severe drought.[8]

The fishing rights to the reservoir are owned by the National Trust, as part of its Holnicote Estate, and leased out privately.[9]

References

  1. ^ "Nutscale Reservoir". BBC. Retrieved 8 October 2015.
  2. ^ "South and West Somerset abstraction licensing strategy". GOV.UK. Retrieved 31 August 2025.
  3. ^ "Conspirators Charge Against Council". Taunton Courier, and Western Advertiser. 30 July 1938. Retrieved 8 October 2015 – via British Newspaper Archive.
  4. ^ Panahandeh, Hadi (2018). "Valuation of Dams. Appendix 5.9.B – Third party report – MWH for Wessex Water" (PDF). Wessex Water. Retrieved 31 August 2025.
  5. ^ "Minehead Summer Shortage". Taunton Courier, and Western Advertiser. 4 December 1937. Retrieved 8 October 2015 – via British Newspaper Archive.
  6. ^ "Nutscale Reservoir Taste and Odour Investigations" (PDF). Wessex Water. Retrieved 8 October 2015.
  7. ^ "Public water supplies in the Western region of England July 2012 A report by the Chief Inspector of Drinking Water" (PDF). DEFRA. p. 27. Retrieved 8 October 2015.
  8. ^ "Drought Plan 2022 Wessex Water" (PDF). Wessex Water. Retrieved 31 August 2025.
  9. ^ "Fishery Survey of the Horner Water Catchment" (PDF). National Rivers Authority. 1993. Retrieved 8 October 2015.