There is a requirement and responsibility on the occupiers or property owners who have premises bound by streams in Guernsey. This section gives a brief guide to the actions that must be taken, by whom and by when. For the avoidance of doubt, it may be appropriate to contact GuernseyWater or the relevant parish for additional information.
Streams must be regularly cleared of weeds and other waste. If your property features a stream, douit or other water course, it is your responsibility to clear it and ensure the water is permitted to run a course free from obstructions.
Without previous written permission, no alterations shall be made to any part of the bed of the watercourse or any part of the bank of the water course ,nor shall a watercourse or any part thereof be covered nor the stream flowing therein or any part thereof be enclosed, whether wholly or partially, by the laying of pipes or otherwise.
Islanders who own or are responsible for properties which bound streams, douits or other water courses, must clear them regularly and remove vegetation before the deadline of 15th June (ie during the first 15 days of June) and 30th September (ie. during the final 15 days of September) in order to ensure the risk of flooding is minimised.
Excess vegetation must be removed and disposed of appropriately and the full length of streams within private grounds checked for damage that could impair the free flow of water.
Public Services and parish constables will carry out inspections after the deadline passes to ensure that the work has been carried out in such a way to satisfy the requirements of the relevant law. Failure to do so may result in the property owners receiving a fine or other penalty as may be imposed by the Royal Court.
For more information about the Clearing of Controlled Streams you may wish to contact GuernseyWater on telephone number 01481 239500.
A printed copy of the "Loi Relative aux Douits 1936" is available from The Greffe at the Royal Court.
Incidents of Water Pollution
If you have concerns about an incident that is, or has the potential, to pollute the water catchment area then you should contact Guernsey Water on the contact number provided below. This contact number is available at all times. Further information regarding Guernsey Water's services and the water catchment area can be found through links at the bottom of this page.