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Top 20 Worst Sewage Spills in Rivers 2023
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Rank River Company Sewage Spills CountSewage Spills Duration (hrs)
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 #1River CalderYorkshire Water4,17732,732
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 #2River AvonWessex Water4,71932,577
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 #3River SevernSevern Trent Water3,05730,236
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 #4River AireYorkshire Water4,88829,458
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 #5River TeifiDwr Cymru Welsh Water2,57928,371
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 #6N/ASouth West Water3,35128,279
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 #7River Ouse Yorkshire Water2,77427,386
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 #8River TameUnited Utilities3,18025,484
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 #9River WharfeYorkshire Water2,45623,120
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 #10River Tawe Dwr Cymru Welsh Water2,59222,776
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 #11River TrentSevern Trent Water2,93921,776
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 #12River IrwellUnited Utilities3,45720,904
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 #13River TamarSouth West Water1,99920,372
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 #14River DonYorkshire Water2,23118,312
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 #15River CarronScottish Water39217,781
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 #16SolentSouthern Water1,55016,942
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 #17River EdenUnited Utilities2,02116,645
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 #18River DerwentSevern Trent Water2,73216,576
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 #19River RotherSouthern Water1,23715,730
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 #20River TorridgeSouth West Water1,40615,610
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Source: https://top-of-the-poops.org/rivers?all=true
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