Wadebridge Road WWTW, St Mabyn - Consultation now closed

On 20 December 2025, we invited you to submit feedback and questions on our draft decision document and the draft permit for the proposed upgrade to the wastewater treatment works on Wadebridge Road, St Mabyn. The consultation closed last night, at midnight.

We received 23 responses to this consultation. Thank you for taking the time to submit your comments. We will consider all the responses you have provided to us through both consultations, before we make a decision. We will take the concerns you raised during the consultation into account when we communicate our final decision.

What happens when we make a decision?

If no new information comes to light through the consultation and there aren't any technical reasons to refuse the permit application, we are bound by the Regulator's Code to issue the permit. This is a government policy to ensure regulators do not obstruct economic development.

We are likely to issue this permit to SWW, because the alternative means that the current WWTW would become overwhelmed by the increase in sewage flow from the Chapelfields development. This would result in either increased sewage tankering in St Mabyn, or raw sewage spilling to the stream and potentially causing significant environmental harm. We want to make sure that we are enabling SWW to improve its infrastructure and cope with growing demand.

If we decide to refuse the permit, SWW will have the right to appeal our decision.

We will let you know our decision very soon.

How can I get further information?

Keep an eye on our local social media channels:

Facebook - Environment Agency South and South West and X - @EnvAgencySW

For more general information about our permitting process please follow this link.

If you would like to be added to or removed from our mailing list for this application, please email us at DCISEnquiries@environment-agency.gov.uk or write to us at

Customer and Engagement Team

Manley House

Kestrel Way

Sowton Industrial Estate

Exeter

EX2 7LQ