1 | A report on the River Chew at Chewton Mendip, 6th August 1992 |
2 | The 1990 river and estuary classification survey of England and Wales |
3 | Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales |
4 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
5 | Assessment of radioactive discharge screening levels for biota protected under the habitats regulations : April 2002 |