See more information about this guidance

Research and analysis

B6: Naturalness scores of water and wetland ecosystems in England, 2022

Updated 1 December 2025
Download CSV 4.22 KB

broad_habitat habitat_type naturalness_component measure value
Running waters Large rivers Hydrological Score 2.486283
Running waters Headwater streams Hydrological Score 2.730063
Standing waters Lakes Hydrological Score 2.51458
Standing waters Ponds Hydrological Score Not set
Wetlands Bogs Hydrological Score Not set
Wetlands Fens Hydrological Score Not set
Estuaries/coasts Estuaries Hydrological Score 2.571383
Estuaries/coasts Coastal Hydrological Score 2.124467
Running waters Large rivers Hydrological Class 3.0
Running waters Headwater streams Hydrological Class 3.0
Standing waters Lakes Hydrological Class 3.0
Standing waters Ponds Hydrological Class Not set
Wetlands Bogs Hydrological Class Not set
Wetlands Fens Hydrological Class Not set
Estuaries/coasts Estuaries Hydrological Class 3.0
Estuaries/coasts Coastal Hydrological Class 2.0
Running waters Large rivers Chemical Score 1.736263
Running waters Headwater streams Chemical Score 2.424617
Standing waters Lakes Chemical Score 2.293432
Standing waters Ponds Chemical Score 2.532258
Wetlands Bogs Chemical Score Not set
Wetlands Fens Chemical Score Not set
Estuaries/coasts Estuaries Chemical Score 2.226075
Estuaries/coasts Coastal Chemical Score 1.94285
Running waters Large rivers Chemical Class 2.0
Running waters Headwater streams Chemical Class 2.0
Standing waters Lakes Chemical Class 2.0
Standing waters Ponds Chemical Class 3.0
Wetlands Bogs Chemical Class Not set
Wetlands Fens Chemical Class Not set
Estuaries/coasts Estuaries Chemical Class 2.0
Estuaries/coasts Coastal Chemical Class 2.0
Running waters Large rivers Physical Score 3.11412
Running waters Headwater streams Physical Score 3.063342
Standing waters Lakes Physical Score 2.801319
Standing waters Ponds Physical Score 2.923664
Wetlands Bogs Physical Score Not set
Wetlands Fens Physical Score Not set
Estuaries/coasts Estuaries Physical Score 2.721
Estuaries/coasts Coastal Physical Score 2.7957
Running waters Large rivers Physical Class 3.0
Running waters Headwater streams Physical Class 3.0
Standing waters Lakes Physical Class 3.0
Standing waters Ponds Physical Class 3.0
Wetlands Bogs Physical Class Not set
Wetlands Fens Physical Class Not set
Estuaries/coasts Estuaries Physical Class 3.0
Estuaries/coasts Coastal Physical Class 3.0
Running waters Large rivers Biological Score 2.689761
Running waters Headwater streams Biological Score 2.146619
Standing waters Lakes Biological Score 4.357447
Standing waters Ponds Biological Score 3.54948
Wetlands Bogs Biological Score Not set
Wetlands Fens Biological Score Not set
Estuaries/coasts Estuaries Biological Score 2.586667
Estuaries/coasts Coastal Biological Score 2.458633
Running waters Large rivers Biological Class 3.0
Running waters Headwater streams Biological Class 2.0
Standing waters Lakes Biological Class 4.0
Standing waters Ponds Biological Class 3.0
Wetlands Bogs Biological Class Not set
Wetlands Fens Biological Class Not set
Estuaries/coasts Estuaries Biological Class 3.0
Estuaries/coasts Coastal Biological Class 3.0
Running waters Large rivers Cross-cutting Score Not set
Running waters Headwater streams Cross-cutting Score 3.736135
Standing waters Lakes Cross-cutting Score Not set
Standing waters Ponds Cross-cutting Score Not set
Wetlands Bogs Cross-cutting Score Not set
Wetlands Fens Cross-cutting Score Not set
Estuaries/coasts Estuaries Cross-cutting Score 1.965533
Estuaries/coasts Coastal Cross-cutting Score 1.672067
Running waters Large rivers Cross-cutting Class Not set
Running waters Headwater streams Cross-cutting Class 4.0
Standing waters Lakes Cross-cutting Class Not set
Standing waters Ponds Cross-cutting Class Not set
Wetlands Bogs Cross-cutting Class Not set
Wetlands Fens Cross-cutting Class Not set
Estuaries/coasts Estuaries Cross-cutting Class 2.0
Estuaries/coasts Coastal Cross-cutting Class 2.0
Running waters Large rivers Overall Score 2.506607
Running waters Headwater streams Overall Score 2.820155
Standing waters Lakes Overall Score 2.991694
Standing waters Ponds Overall Score 3.001801
Wetlands Bogs Overall Score Not set
Wetlands Fens Overall Score Not set
Estuaries/coasts Estuaries Overall Score 2.414132
Estuaries/coasts Coastal Overall Score 2.198743
Running waters Large rivers Overall Class 3.0
Running waters Headwater streams Overall Class 3.0
Standing waters Lakes Overall Class 3.0
Standing waters Ponds Overall Class 3.0
Wetlands Bogs Overall Class Not set
Wetlands Fens Overall Class Not set
Estuaries/coasts Estuaries Overall Class 2.0
Estuaries/coasts Coastal Overall Class 2.0