The Urban Waste Water Treatment Directive: Observations on the water quality of Windermere, Grasmere, Derwent Water and Bassenthwaite Lake, 2006

This report continues a sequence of annual reviews of water quality in Windermere and Bassenthwaite Lake that are subject to the provisions of the Urban Waste Water Treatment Directive. Grasmere, which feeds into Windermere is also included because of concerns over a deterioration in water quality over the last, approximately 30 years and Derwent Water is included, partly as a comparison with Bassenthwaite Lake and partly because it is the sole refuge of a healthy population of the vendace, Coregonus albulus