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351A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
352A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
353The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
354An investigation into the effects of Alton sewage works on the River Wey North
355Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
356A brief history of the River Stour navigation : 1705 to the present day
357The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
358Protecting your future : tackling flooding in the Thames Estuary through the 21st century
359The land-use planning system and the Water Framework Directive (can't read barcode)
360The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
361Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
362Report 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
363A review of the use of multifunction wardens in the Devon Area of the South Western Region of the National Rivers Authority, with particular reference to their use within the fisheries function
364Responses 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
365A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids
366Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
367Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
368Report on the national marine analytical quality control scheme 1992/93 (MPMMG 93/12) : presented to the October 1993 meeting of the Marine Pollution Monitoring Management Group
369A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
370The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
371The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates
372The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales
373The 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
374The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
375Audit surveys in the NRA Thames region : a report on the surveys carried out in 1992/93 to assess the retention and enhancement of wildlife habitats during routine dredging operations