StreamLine: the regulatory advice service for water innovators

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Welcome to StreamLine, the regulatory advice service for innovators and businesses in England and Wales. StreamLine is run jointly by the Drinking Water Inspectorate, the Environment Agency and Ofwat to support innovation.

We provide advice to help innovators and businesses understand and navigate through water sector regulations.

We do not provide advice on activities such as environment permits, planning and substances in contact with drinking water (Regulation 31), which are charged for. Read our Frequently Asked Questions (FAQs) on where you can go for this advice.

StreamLine’s terms of service are available here and StreamLine’s privacy notice is available here.

There is also additional information available if you want help with your innovation or information on contacts within water companies.

Use StreamLine: send us your questions

Use the button below to access the StreamLine Portal, which is hosted outside of the Ofwat website.  The form on the portal can be used to send us your questions and requests for advice.

Access the StreamLine Portal

Terms of service

Streamline terms of service

Getting help with your innovation

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Water company and retailer contact details

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Frequently Asked Questions

Privacy notice

StreamLine Privacy notice