An investigation into a slurry leak, which killed thousands of fish in the Penruddock area on the fringes of the Lake District, is continuing.
Members of the public reported brown water, and dead fish floating on the surface, at at Skitwath and Dacre Becks.
Environment Agency officers were sent to contain the leak, which was found to have been slurry.
Thousands of fish, including trout and salmon, died, and officers remain in the area investigating.
Children at a Cumbrian school are learning about the causes of water pollution using an environment agency video.
Crystal the Crab will explain to youngsters at Allonby Primary School how things - like dog fouling and washing machines or toilets that are not properly plumbed - can pollute sea water.