Drainage and Wastewater Management Plans

Have your say: our initial consultation

What are DWMPs?

DWMPs are long-term plans – spanning 25 years or more – that will provide an opportunity to improve water quality and drainage systems and will reduce flooding and pollution for the benefit of our customers, communities, businesses, the environment and wildlife. Find out more: What are DWMPs?

Our DWMPs – the story so far

We’re following an approach developed by Water UK, which provides guidance about DWMPs for all the water companies in the United Kingdom that provide drainage and wastewater services to customers (this is part of a full DWMP framework). Water companies are asked to produce one DWMP for their operating area, alongside plans for strategic planning areas – defined as the major river basin catchments.

Below, you'll find our developing DWMP for each catchment. We’ll publish further information for each one as we work through the process. Please note, any information on these pages should be read in the context of work-in-progress until we publish our final DWMPs in January 2023.

How can you get involved?

If you’re a customer

To shape our plans, we’re using input from customers from previous reports of flooding and pollution, and from our engagement during the development of our business plan for 2020–2025.

If you’re a customer and want to provide information on flooding, pollution and other issues in your area, please get in touch.

If you’re a partner organisation

During the production of the DWMPs, we seek to partner with organisations who are involved in drainage and the protection of the environment. So, we’ll share draft information on the website to inform discussions.

If you’d like to collaborate on our plans, please email: DWMP@southernwater.co.uk.

For more ways to get involved, see ‘Who we’ll be working with’ under Developing our DWMPs.