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51Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
52Investigation into the chemicals present and entering the Stover Lake, Stover Country Park
53Proposals to extend the Environment Agency's monitoring certification scheme (MCERTS) to the chemical testing of soils
54An investigation of the bacteriological quality of bathing water around the Kent coast since 1985
55A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
56Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
57An investigation into the water quality of the River Waldon during wet weather
58The environmental impact of the foot and mouth disease outbreak: and interim assessment
59A review of the performance of Aldershot STW and its effect on the River Blackwater
60Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region
61Riverside litter : results of the 1990 campaign and a strategy for the future
62Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
63The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
64Report on the control of discharges of titanium dioxide waste to the Humber Estuary : main report
65Classification of listed substances for the purposes of the EC groundwater directive (80/68/EEC) : technical report
66The 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
67Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
68Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges
69The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
70Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
71Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
72Meiofaunal 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
73Investigations 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
74Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
75Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)