Boat Wash Down Guidance

As a significant landowner and harbour authority, Cornwall Council have an adopted ‘Sustainable Strategy for Local Authority Ports and Harbours in Cornwall’ which outlines support for environmental stewardship in its widest sense, while balancing this with prosperity of the harbours and safety for all users.

Cornwall Council, the Environment Agency and Cornwall Marine Network are working together to understand the full nature of the problem of boat wash downs and look at ways in which boat owners can avoid polluting the waters with contaminated washdown water.

The Council have also informed stakeholders of the need to take precautions through the provision of leaflets, tide tables, among other methods. Furthermore, they offer guidance to users that before pressure washing tarpaulins should be laid out to catch any arisings from the operation.They also advise reinforcing this process with purpose built wash down areas with interceptors to sandbagged areas lined with geotextile material to retain solids and dispose of the pollutants in the appropriate way.