Drainage and Wastewater

Management Plan


We are producing a Drainage and Wastewater Management Plan (DWMP) which provides a basis for long-term planning of drainage and wastewater services. The DWMP is a plan for the future to achieve the best outcome for the environment and our customers. Our customers are our priority. Your voice drives our DWMP process, and it is vital you are involved to ensure we create a long-term plan that benefits everyone.

The DWMP Customer Research Journey

Have your say

We have developed the first version of the DWMP and we want to know what you think about it. Your valued feedback will be used to help shape the final Plan and how we carry out planning for the future.

The DWMP is a customer-driven plan that will focus on tackling the future challenges of population growth, urban creep and climate change on our drainage and wastewater systems from 2025 to 2050.

The Plan

We are committed to developing the DWMP: it will help us work towards our Welsh Water 2050 vision to earn the trust of our customers every day and achieve our mission of becoming a truly world-class, resilient and sustainable service for the benefit of future generations.

Drainage and Wastewater Management Plans are being produced industry-wide in England and Wales and are based on the framework developed on behalf of Water UK – the Water UK DWMP

What planning areas will the DWMP cover? 

Level 1 - Company Operational Level - An operational area which consolidates the more localised mapping in levels 2 and 3 in a published strategic report for our whole operational area. Our high-level plan will show how we address the challenges we have identified and how we will achieve our long-term wastewater and drainage aims.

Level 2 - Strategic Planning Unit - A subdivision of the company operational area. Originally set at the River Basin Management District Catchment (RBMD) level and revised to take into account drainage from sewers. This is where we combine the significant risks identified and consult with stakeholders where collaborative opportunities lie to achieve greater benefits for all.

Level 3 - Tactical Planning Unit - A consolidation of WwTW and its catchments joined together by its river drainage system. At this level we undertake a detailed assessment of risks and opportunities. It sets out a long-term plan of interventions needed to meet the needs of the catchment, the communities that live there and our Company’s strategic plans. 

How to get in touch

We want to hear from you! Please contact us at DWMP@dwrcymru.com if you would like more information or if you would like to arrange a virtual meeting.

Document downloads

Customer Summary

Download
4.8MB, PDF

Foreword

Download
207.7kB, PDF

Non-technical Summary

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1.5MB, PDF

Technical Summary

Download
2.1MB, PDF

The Main Plan

Download
4MB, PDF

Strategic Environmental Assessment

Download
7.7MB, PDF

Habitats Regulations Assessment

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955.8kB, PDF

Carmarthen Bay and the Gower

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11.2MB, PDF

Cleddau and Pembrokeshire Coastal Rivers

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10.1MB, PDF

Clwyd

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7.7MB, PDF

Conwy

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4.9MB, PDF

Dee

Download
14.1MB, PDF

Llyn and Eryri

Download
10.3MB, PDF

Meirionnydd

Download
8.5MB, PDF

South East Valleys

Download
6MB, PDF

Tawe to Cadoxton

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6.8MB, PDF

Teifi and North Ceredigion

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7.4MB, PDF

Usk

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8.3MB, PDF

Wye

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13.9MB, PDF

Ynys Mon

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7.6MB, PDF