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176Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
177The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990
178The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
179A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
180The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
181An investigation into the effects of Alton sewage works on the River Wey North
182Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
183The land-use planning system and the Water Framework Directive (can't read barcode)
184Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary
185Responses to 'Outlook for the environment' : a summary of the responses to the Environment Agency's consulation on the priorities for investment by water companies in environmental improvements as part of the Periodic Review
186Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
187Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
188Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
189Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
190East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe
191Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
192Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
193The effects of water resources management on the rivers Bure, Wensum and Nar in North Norfolk : Final project report to the National Rivers Authority. July 1994
194The new waterlands? Proceedings of a one day seminar organised by the Sussex Wildlife Trust as part of the RSNC Wildlife Trusts Parnership Water For Wildlife campaign
195The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
196Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995
197A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
198Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent
199Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3
200Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region