Lake water quality in England
England has 529 named lakes in this catalog, sampled 2016–2026. 524 have total phosphorus, 521 have chlorophyll-a, 1 have Secchi depth. Values are the authority's measurements, not a LakeQuality letter grade.
Lake map
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Places in England
- Gtr Mancs Mersey and ChesCounty · 60 lakes
- Cumbria and LancashireCounty · 49 lakes
- Essex Norfolk and SuffolkCounty · 49 lakes
- West ThamesCounty · 45 lakes
- YorkshireCounty · 37 lakes
- Herts and North LondonCounty · 34 lakes
- Northumberland Durham and TeesCounty · 33 lakes
- Lincs and NorthantsCounty · 31 lakes
- Cambs and BedfordshireCounty · 30 lakes
- Derbys Notts and LeicsCounty · 28 lakes
- Kent and South LondonCounty · 28 lakes
- Shrops Heref Worcs and GlosCounty · 27 lakes
- Staffs Warks and West MidsCounty · 22 lakes
- WessexCounty · 21 lakes
- Devon and CornwallCounty · 18 lakes
- Solent and South DownsCounty · 17 lakes
Named lakes
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Abberton Reservoir From the Shoreline | Essex Norfolk and Suffolk | 76 µg/L | 13 µg/L | — | 2025 |
| Abbey Lake | West Thames | 30 µg/L | 4.0 µg/L | — | 2024 |
| Abbey Meads Lake | Kent and South London | 31 µg/L | 11 µg/L | — | 2025 |
| Alderfen Broad | Essex Norfolk and Suffolk | 96 µg/L | 5.4 µg/L | — | 2026 |
| Alderford Lake | Shrops Heref Worcs and Glos | 89 µg/L | 7.6 µg/L | — | 2026 |
| Alkmund Park Pool | Shrops Heref Worcs and Glos | 185 µg/L | 37 µg/L | — | 2026 |
| Allerton Ings Pasture Pond | Yorkshire | 210 µg/L | 27 µg/L | — | 2026 |
| Andys Lake East Shore | West Thames | 11 µg/L | 2.0 µg/L | — | 2026 |
| Anglers Reservoir by the Pond | Yorkshire | 21 µg/L | 10 µg/L | — | 2026 |
| Anglezarke Reservoir Rivington Catchement Dip | Cumbria and Lancashire | 27 µg/L | 6.6 µg/L | — | 2020 |
| Ardleigh Reservoir | Essex Norfolk and Suffolk | 65 µg/L | 8.8 µg/L | — | 2026 |
| Ashford Station Lake | Herts and North London | 52 µg/L | 5.4 µg/L | — | 2026 |
| Ashworth Moor Reservoir | Gtr Mancs Mersey and Ches | 25 µg/L | 5.6 µg/L | — | 2020 |
| Audenshaw Reservoir | Gtr Mancs Mersey and Ches | 22 µg/L | 6.3 µg/L | — | 2020 |
| Bainton Syndicate Lake | Lincs and Northants | 32 µg/L | 8.7 µg/L | — | 2026 |
| Bakethin Reservoir | Northumberland Durham and Tees | 22 µg/L | 1.6 µg/L | — | 2020 |
| Balderhead Reservoir | Northumberland Durham and Tees | 21 µg/L | 1.8 µg/L | — | 2026 |
| Balderton Lake | Derbys Notts and Leics | 29 µg/L | 3.1 µg/L | — | 2025 |
| Bar Mere | Gtr Mancs Mersey and Ches | 150 µg/L | 15 µg/L | — | 2023 |
| Barnacre North Reservoir | Cumbria and Lancashire | 21 µg/L | 5.6 µg/L | — | 2020 |
| Barnby Dun Pond | Yorkshire | 160 µg/L | 6.6 µg/L | — | 2026 |
| Barrow Reservoir Tower Northern Tank | Wessex | 197 µg/L | 11 µg/L | — | 2020 |
| Barston Lake | Staffs Warks and West Mids | 435 µg/L | 49 µg/L | — | 2026 |
| Barton Broad | Essex Norfolk and Suffolk | 72 µg/L | 26 µg/L | — | 2026 |
| Bartons Broads Residential Park Lake | Lincs and Northants | 655 µg/L | 4.4 µg/L | — | 2026 |
| Bassenthwaite Lake | Cumbria and Lancashire | 13 µg/L | 4.1 µg/L | — | 2026 |
| Belmont Reservoir | Gtr Mancs Mersey and Ches | 34 µg/L | 1.9 µg/L | — | 2025 |
| Belvide Reservoir Fwf Stillwater | Staffs Warks and West Mids | 259 µg/L | 12 µg/L | — | 2026 |
| Berrington Pool | Shrops Heref Worcs and Glos | 92 µg/L | 13 µg/L | — | 2024 |
| Betley Mere | Gtr Mancs Mersey and Ches | 310 µg/L | 52 µg/L | — | 2026 |
| Betley Mere Adjecent To Mere Gutter | Gtr Mancs Mersey and Ches | 547 µg/L | 27 µg/L | — | 2019 |
| Betley Mere From Jetty | Gtr Mancs Mersey and Ches | 300 µg/L | 42 µg/L | — | 2020 |
| Big Billinge Lake | Gtr Mancs Mersey and Ches | 175 µg/L | 7.5 µg/L | — | 2025 |
| Big Lodge Lake | Cumbria and Lancashire | 61 µg/L | 8.3 µg/L | — | 2026 |
| Big Waters | Northumberland Durham and Tees | 87 µg/L | 7.8 µg/L | — | 2020 |
| Bilberry Reservoir | Yorkshire | 20 µg/L | 1.0 µg/L | — | 2026 |
| Black Dicth Pond | West Thames | 175 µg/L | 3.5 µg/L | — | 2023 |
| Black Lough Lake | Northumberland Durham and Tees | 93 µg/L | 46 µg/L | — | 2026 |
| Blackstone Edge Reservoir | Gtr Mancs Mersey and Ches | 46 µg/L | 5.3 µg/L | — | 2020 |
| Blackton Reservoir | Northumberland Durham and Tees | 21 µg/L | 1.3 µg/L | — | 2020 |
| Blagdon Lake | Wessex | 71 µg/L | 7.5 µg/L | — | 2020 |
| Blashford Lake | Wessex | 21 µg/L | 6.2 µg/L | — | 2026 |
| Blea Water | Cumbria and Lancashire | 2.8 µg/L | 1.0 µg/L | — | 2022 |
| Blelham Tarn | Cumbria and Lancashire | 19 µg/L | 5.7 µg/L | — | 2026 |
| Blickling Hall Lake | Essex Norfolk and Suffolk | 21 µg/L | 9.2 µg/L | — | 2025 |
| Boating Lake | Herts and North London | 196 µg/L | 64 µg/L | — | 2017 |
| Bolam Lake | Northumberland Durham and Tees | 46 µg/L | 4.9 µg/L | — | 2026 |
| Boldermere | West Thames | 42 µg/L | 8.4 µg/L | — | 2024 |
| Bomere Pool | Shrops Heref Worcs and Glos | 37 µg/L | 8.7 µg/L | — | 2025 |
| Bomere Pool Jetty | Shrops Heref Worcs and Glos | 33 µg/L | 9.5 µg/L | — | 2026 |
| Bonehill Mill Fishery Lake | Staffs Warks and West Mids | 200 µg/L | 58 µg/L | — | 2026 |
| Boreham Mere Fishery | Essex Norfolk and Suffolk | 59 µg/L | 47 µg/L | — | 2026 |
| Boultham Mere Reserve | Lincs and Northants | 265 µg/L | 9.8 µg/L | — | 2026 |
| Bowyers Lake | Herts and North London | 37 µg/L | 2.7 µg/L | — | 2026 |
| Bowyers Water :Waltham Cross | Herts and North London | 38 µg/L | 5.7 µg/L | — | 2022 |
| Bradbourne Lake Kwt | Kent and South London | 33 µg/L | 11 µg/L | — | 2026 |
| Bradgate Brook Lake | Derbys Notts and Leics | 75 µg/L | 13 µg/L | — | 2026 |
| Bradwell Lake | Cambs and Bedfordshire | 66 µg/L | 5.6 µg/L | — | 2026 |
| Brasside Pond | Northumberland Durham and Tees | 98 µg/L | 8.5 µg/L | — | 2024 |
| Braydon Pond | Wessex | 185 µg/L | 38 µg/L | — | 2026 |
| Broadwater Lake | Herts and North London | 115 µg/L | 8.9 µg/L | — | 2026 |
| Brooklands Lake | Kent and South London | 33 µg/L | 5.3 µg/L | — | 2026 |
| Broomey Croft Pool | Staffs Warks and West Mids | 485 µg/L | 5.9 µg/L | — | 2026 |
| Broomlee Lough Lake | Northumberland Durham and Tees | 16 µg/L | 4.0 µg/L | — | 2026 |
| Brotherswater | Cumbria and Lancashire | 5.3 µg/L | 1.5 µg/L | — | 2026 |
| Burnt Fen Broad | Essex Norfolk and Suffolk | 102 µg/L | 50 µg/L | — | 2020 |
| Burntfen Broad | Essex Norfolk and Suffolk | 130 µg/L | 45 µg/L | — | 2026 |
| Burrows Pit Lake | Kent and South London | 100 µg/L | 40 µg/L | — | 2026 |
| Burton Mill Pond | Solent and South Downs | 53 µg/L | 16 µg/L | — | 2026 |
| Bussock Pond | Lincs and Northants | 59 µg/L | 25 µg/L | — | 2025 |
| Butterley Reservoir | Yorkshire | 28 µg/L | 1.4 µg/L | — | 2026 |
| Buttermere | Cumbria and Lancashire | 4.4 µg/L | 1.8 µg/L | — | 2026 |
| Buttermere As Part of A Wq Survey | Cumbria and Lancashire | 6.5 µg/L | 3.1 µg/L | — | 2026 |
| By Outfall Lake | West Thames | 31 µg/L | 24 µg/L | — | 2025 |
| By Sluice Lake | West Thames | 74 µg/L | 10 µg/L | — | 2025 |
| Cant Clough Reservoir | Cumbria and Lancashire | 18 µg/L | 3.3 µg/L | — | 2020 |
| Cargill Lake | Herts and North London | 160 µg/L | 9.5 µg/L | — | 2026 |
| Carlton Ponds | Yorkshire | 280 µg/L | 12 µg/L | — | 2026 |
| Carr Brook (Blackwell Brook Lake | Derbys Notts and Leics | 100 µg/L | 5.4 µg/L | — | 2022 |
| Carr Mill Dam Lake | Gtr Mancs Mersey and Ches | 92 µg/L | 2.4 µg/L | — | 2026 |
Showing 80 of 529 named lakes. Open a county or place page for the rest.
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