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351The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation
352A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
353A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
354A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
355The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
356An investigation into the effects of Alton sewage works on the River Wey North
357Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
358A brief history of the River Stour navigation : 1705 to the present day
359The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
360Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
361Protecting your future : tackling flooding in the Thames Estuary through the 21st century
362The land-use planning system and the Water Framework Directive (can't read barcode)
363The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
364Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
365Report 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
366Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
367Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
368Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
369East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe
370Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
371Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
372A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
373The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
3741995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments
375Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)