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51Investigation of the environmental impact of Coombe Farm on the Clapton Stream January 1992
52The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey
53Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
54Investigation into the chemicals present and entering the Stover Lake, Stover Country Park
55Proposals to extend the Environment Agency's monitoring certification scheme (MCERTS) to the chemical testing of soils
56An investigation of the bacteriological quality of bathing water around the Kent coast since 1985
57A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
58Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
59An investigation into the water quality of the River Waldon during wet weather
60The environmental impact of the foot and mouth disease outbreak: and interim assessment
61A review of the performance of Aldershot STW and its effect on the River Blackwater
62Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region
63Riverside litter : results of the 1990 campaign and a strategy for the future
64Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
65The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
66Report on the control of discharges of titanium dioxide waste to the Humber Estuary : main report
67Classification of listed substances for the purposes of the EC groundwater directive (80/68/EEC) : technical report
68The 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
69Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
70Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges
71The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
72Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
73Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
74Meiofaunal 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
75Investigations 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