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401The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
402A brief history of the River Stour navigation : 1705 to the present day
403The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
404Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
405Protecting your future : tackling flooding in the Thames Estuary through the 21st century
406The land-use planning system and the Water Framework Directive (can't read barcode)
407The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
408Report 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
409A 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
410Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
411A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids
412Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
413Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
414Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
415East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe
416Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
417Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
418Report 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
419A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
420The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
4211995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments
422Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
423The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates
424The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales
425The 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