126 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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127 | Method for assessing the heritage value of net fisheries |
128 | Factors affecting the recruitment of riverine coarse fish: phase 3 |
129 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
130 | A guide to sustainable urban drainage : protecting the quality of our environment |
131 | The NRA in business : annual review and summary accounts 1993-94 |
132 | Report on monitoring of environmental quality in the Severn Estuary |
133 | Hams Hall Power Station. A survey of the flora and fauna of freshwater habitats in the environs of Hams Hall Power Station, Birmingham |
134 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
135 | Water company plans to safeguard 1997 summer water supplies : Environment Agency report to the Secretary of State for the Environment : fifth report in a series |
136 | Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990 |
137 | The quality of rivers and canals in England and Wales (1990 to 1992) : as assessed by a new general quality assessment scheme : report of the National Rivers Authority |
138 | Implications of draft EC Directive concerning municipal waste water treatment : Memorandum submitted by the NRA to House of Lords Select Committee on the European Communities |
139 | Datchet, Wraysbury, Staines and Chertsey flood study : aquatic biology. Part 2 : a survey of the wetland vegetation and aquatric macroinvertebrates of the Abbey River and Chertsey Bourne |
140 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2002 : The Environment Agency (CEH Report Ref: C00158/31) |
141 | National marine baseline survey 1995 : littoral cell 2 : Flamborough Head to the Wash |
142 | Thames Environment 21. The Environment Agency strategy for land-use planning in Thames Region |
143 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |
144 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
145 | Pesticides 1998 : a summary of monitoring of the aquatic environment in England and Wales |
146 | Survey of physical characteristics of salmon spawning riffles in the river North Tyne
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147 | Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft |
148 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
149 | 1966 the original team approaching Esthwaite Water to practice sampling from a boat |
150 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |