Cooper-Smith, G., Rands, J., Heath, C. and Sherwood A., United Utilities, UK PRESENTATION ONLY
(free)• Water quality of lake under question • Presence of algal blooms • Great North Swim – CANCELLED
Advanced Phosphorus Removal Required at Windermere WwTW • 12 month catchment wide sampling survey initiated • United Utilities (UU) shown to contribute >55% of total phosphorus (TP) load • Modelling used to assess the impact of in-lake TP concentrations on the occurrence of algal blooms • To reduce occurrence of blooms UU must reduce TP load from Windermere WwTW by >65% • Windermere WwTW has a current TP final effluent permitted concentration of 1mg/l annual average CONCLUSION: Windermere WwTW will need to meet a final effluent standard of between 0.2-0.1mg/l TP in AMP6, under a Biodiversity driver
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