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251The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
252Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
253Responses 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
254A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids
255Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
256Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
257Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
258Report 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
259A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
260The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
261Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
262The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales
263The 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
264Audit 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
265Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995
266Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team
267Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993
268Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
269Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
270A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data
271Warming to the idea : meeting the challenge of climate change in the South West : summary report : south west region climate change impacts scoping study
272A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
273Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges
274Recorded data from the Black Bridge weather station (weather station 2) in the Wensum Catchment between 2010-2011
275Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir