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