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26The effects of Guildford STW on the River Wey
27Report on the 1995 stock assessment of the Douglas catchment
28Anglian region state of the environment report : the IPC perspective
29Abandoned mines and the water environment : report of the National Rivers Authority
30Contaminated land and the water environment : report of the National Rivers Authority
31Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River
32The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Berkshire And The Chilterns
33Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change
34The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality
35Pollution control on the River Alt
36Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual)
37Devon area internal report - the kingsbridge estuary - survey of the benthic microinvertebrate infauna (october 1990) for the proposed classification of estuaries in the south western region
38Rivers of the Isle of Wight
39River water quality in the Midlands 1997
40Humber estuary : state of the environment 1998
41Water Quality of the Humber Estuary 1986
42Investigation to determine if the soakaway from the Stowford Farm caravan site is having an impact on the biological community of the Colam stream
43Information [on the NRA Anglian Region]
44Hydropower developments and the National Rivers Authority
45Environmental issues in the Midlands 1995/96
46Synoptic State of the Environment Monitoring
47Environmental snapshot for the Anglian region 2002
48River water quality in the Midlands 1998
49Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment
50Clouding: the issue. An appraisal of the effects of turbidity in aquatic systems