Baseline England and Wales

BGS carried out investigations of the baseline quality of groundwater in aquifers of England and Wales between the late 1990s and 2015. A series of 23 reports and an overall synthesis report were produced as part of this investigation in a collaboration between BGS and the Environment Agency between 2002 and 2005. These are available for download below.

Reports in the Baseline Series 2002 – 2005

These reports were produced through a collaboration between BGS and the Environment Agency.

1. The Triassic sandstones of the Vale of York
2. The Permo-Triassic sandstones of west Cheshire and the Wirral
3. The Permo-Triassic Sandstones of South Staffordshire and North Worcestershire
4. The Chalk of Dorset
5. The Chalk of the North Downs, Kent and east Surrey
6. The Chalk of the Colne and Lee River catchments
7. The great and inferior oolite of the Cotswolds District
8. The Permo-Triassic sandstones of Manchester and east Cheshire
9. The Lower Greensand of southern England
10. The Chalk aquifer of Yorkshire and North Humberside
11. The Bridport sands of Dorset and Somerset
12. The Devonian aquifer of South Wales and Herefordshire
13. The Great Ouse chalk aquifer, East Anglia
14. The Corallian of Oxfordshire and Wiltshire
15. The Palaeogene of the Wessex Basin
16. The granites of south-west England
17. The Ordovician and Silurian meta-sedimentary aquifers of central and south-west Wales
18. The Millstone Grit of Northern England
19. The Permo-Triassic sandstones of Liverpool and Rufford
20. The Permo-Triassic sandstone aquifer of Shropshire
21. The Chalk and Crag of north Norfolk and the Waveney catchment
22. The Carboniferous limestone of Northern England
23. The Lincolnshire limestone

• Synthesis: The natural (baseline) quality of groundwater in England and Wales

Additional BGS reports 2006 – 2015

• The Carboniferous Limestone aquifer of the Derbyshire Dome
• The Chalk aquifer of Hampshire
• The Magnesian Limestone of County Durham and North Yorkshire
• The Palaeogene of the Thames Basin
• The Sherwood Sandstone of Devon and Somerset
• The Corallian of the Vale of Pickering, Yorkshire