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26Catches of Migratory Fish in the River Don, Aberdeenshire- Consideration of the Availability of Fish
27The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey
28The influence of agriculture on the quality of natural waters in England and Wales
29Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995
30Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
31Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
32Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
33Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
34Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996
35An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
36NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
37Sustainable water resources for the future : values and challenges : consultation document for the Environment Agency's water resources strategies
38Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
39Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
40The River Eden Demonstration Test Catchment (DTC) Data
41Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
42Quality audit of biological samples for the 1990 river quality survey
43The quality of rivers in England and Wales (1990 to 1995)
44River water quality in the Midlands 1994/95 : water quality summary data
45A guide to sustainable urban drainage : protecting the quality of our environment
46Policy and practice for the protection of groundwater
47The Wandle, Beverley Brook, Hogsmill catchment management plan : action plan : July 1995
48The National Groundwater and Contaminated Land Centre (NGWCLC)
49Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
50Snapshots of the environment : a new environmental approach