Final Drought Plan 2020


We are trusted to plan for drought and trusted to deliver these plans if and when drought periods occur – we must continue to earn that trust every day.

At Welsh Water, our vision is; “To earn the trust of customers, every day”. That vision reflects our unique ownership structure: we have no shareholders and so can concentrate solely on delivering the best possible value for money to our customers. All the profits that we make are reinvested in the business to improve outcomes for our customers and the natural environment, or are used to benefit customers. We need to hold to this way of working every day, especially during stressful periods such as droughts which can be challenging for both ourselves and customers.

We are trusted to plan for drought and trusted to deliver these plans if and when drought periods occur – we must continue to earn that trust every day. Welsh Water’s long term ambitions have been set out in our Water 2050 document and this places the maintenance of wholesome water supplies at its heart. One of our key strategies is what we have titled “Enough Water For All”. In essence, this is to ensure that we always have sufficient water in line with our customers’ expectations, even in times of drought. Our Water Resources Management Plan and our Drought Plan are at the centre of this strategy.

Producing and maintaining a Drought Plan is a statutory process required by Government who have set out the legal basis for this in the Water Industry Act 1991. We are directed by Welsh Government who also provide the guiding principles for our plan. We have worked closely with Natural Resources Wales who produce the Drought Planning Guidance for water companies in Wales. Our Drought Plan sets out how we will deal with drought conditions within both the urban and rural parts of our supply area, and how we will monitor the effect of any actions that we take on the natural environment.


We published our draft plan for consultation on the 25th July 2019 for 8 weeks, closing on 19th September. During the consultation process we:

  • Contacted over 120 organisations directly
  • Contacted all relevant Members of Parliament and all Welsh Assembly Members
  • Published the Plan on our website and publicised it via our Welsh Water Twitter, Facebook and Instagram feeds
  • In total we received comments from seven separate respondents.


Following the closure of the consultation, we published our revised Draft Drought Plan 2020 on the 7th November 2019, together with our Statement of Response. We have today (26th February 2021) published our Final Drought Plan 2020 after receiving direction to do so from the Welsh Government (dated 19th February 2021).


If you require any further information, or copies of supporting reports that are not published on our website, relating to our Final Drought Plan 2020, then please email Water.Resources@dwrcymru.com.

Reports and Summaries

Final Drought Plan 2020 - Executive Summary

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585.6kB, PDF

Final Drought Plan 2020 - Main Technical Report

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3.7MB, PDF

Final Drought Plan 2020 - Statement of Response

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524.6kB, PDF

Final Drought Plan 2020 - Security statement

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683.4kB, PDF

Final Drought Plan 2020 - Appendix 2 Drought Vulnerability Framework Hydrological Update

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11.8MB, PDF

Final Drought Plan 2020 - Annex 2 Supporting table

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323.8kB, PDF

Final Drought Plan 2020 - Annex 3 Environmental Assessment Improvements

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518.1kB, PDF

Final Drought Plan 2020 - Annex 4 Demand Side Actions

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395.8kB, PDF

Final Drought Plan 2020 - Appendix 1 Drought Vulnerability Framework

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6.8MB, PDF

Final Drought Plan 2020 - Appendix 3 -SEA

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15MB, PDF

Final Drought Plan 2020 - Appendix 4 - HRA

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2.5MB, PDF

Zonal Summaries (Annex 1)

Annex 1a - NEYM

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1.1MB, PDF

Annex 1b - Clwyd

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806.8kB, PDF

Annex 1c- Alwen Dee

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671.2kB, PDF

Annex 1d- Bala

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655.7kB, PDF

Annex 1e- Tywyn

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923.4kB, PDF

Annex 1f - Blaenau

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666.3kB, PDF

Annex 1g - Barmouth

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589.6kB, PDF

Annex 1h - Lleyn Harlech

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613.6kB, PDF

Annex 1i- Dyffryn Conwy

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820.6kB, PDF

Annex 1j - South Meirionydd

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648.3kB, PDF

Annex 1k - Hereford and Monmouth

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1.6MB, PDF

Annex 1l - Elan Builth_Llyswen

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820.6kB, PDF

Annex 1m - Brecon Portis

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334.4kB, PDF

Annex 1n - SEWCUS

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857.2kB, PDF

Annex 1o - Tywi

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941.9kB, PDF

Annex 1p MS Ceredigion

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612.2kB, PDF

Annex 1q - N Ceredigion

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737.9kB, PDF

Annex 1r - Pembs

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785.6kB, PDF

Final Drought Plan 2020 - Annex 1r - Pembrokeshire WRZ

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1.4MB, PDF

Environmental Assessment Reports

Appendix 10 Environmental Assessment Report Afon Aled Option no 80124

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3.6MB, PDF

Appendix 11 Environmental Assessment Report for Llanerch Option no 80125

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9.7MB, PDF

Appendix 12 Environmental Assessment Report for Llyn Aled Option no 80126

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6.9MB, PDF

Appendix 13 Environmental Assessment Report for Dysynni Option no 80211

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4.2MB, PDF

Appendix 14 Environmental Assessment Report for Bodlyn Option no 80332

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5MB, PDF

Appendix 15 Environmental Assessment Report for Dwyfor Option no 80341

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3.9MB, PDF

Appendix 16 Environmental Assessment Report for Llwynon Option no 81091

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5.4MB, PDF

Appendix 17 Environmental Assessment Report for Rhondda Option no 81121

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5.4MB, PDF

Appendix 18 Environmental Assessment Report for Talybont Option no 81163

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5.8MB, PDF

Appendix 19 Environmental Assessment Report for Pontsticill Option no 81191

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5.4MB, PDF

Appendix 20 Environmental Assessment Report for Tywi Option no 82013

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2.1MB, PDF

Appendix 21 Environmental Assessment Report for Llechryd Option no 82021

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4.2MB, PDF

Appendix 22 Environmental Assessment Report for Nantymoch Option no 82032

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2.2MB, PDF

Appendix 23 Environmental Assessment Report for Preseli Option no 82062

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2.9MB, PDF

Appendix 24 Environmental Assessment Report for Llys y Fran Option no 82067

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5.8MB, PDF

Appendix 05 Environmental Assessment Report Llyn Cwellyn Option no80012

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5.7MB, PDF

Appendix 06 Environmental Assessment Report Llyn Alaw Option no 80013

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4.5MB, PDF

Appendix 07 Environmental Assessment Report Llyn Fynnon Llugwy Option no80014

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4.8MB, PDF

Appendix 08 Environmental Assessment Report Report Llyn Cefni Option no 80015

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4.6MB, PDF

Appendix 09 Environmental Assessment Report Llyn Aled Isaf Option no 80122

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4.5MB, PDF

Appendix 24 - 8206-7 Llys-y-Fran Freshet EAR 311019 FINAL

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5.8MB, PDF