126 | 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 |
127 | 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 |
128 | 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 |
129 | 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 |
130 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2002 : The Environment Agency (CEH Report Ref: C00158/31) |
131 | National marine baseline survey 1995 : littoral cell 2 : Flamborough Head to the Wash |
132 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |
133 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
134 | Pesticides 1998 : a summary of monitoring of the aquatic environment in England and Wales |
135 | Survey of physical characteristics of salmon spawning riffles in the river North Tyne
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136 | Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft |
137 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
138 | 1966 the original team approaching Esthwaite Water to practice sampling from a boat |
139 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |
140 | National marine baseline survey 1995 : littoral cell 4 : the Thames to Selsey Bill |
141 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
142 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
143 | The environmental economy of England's northwest : a driver for economic and social progress : executive summary |
144 | Partnership in environment protection : taking steps towards a better environment in the midlands |
145 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
146 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
147 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
148 | The government's policy for a public regulatory body in a privatised water industry |
149 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
150 | Darwell Transfer Scheme. Final Report Part III. Water quality in the Darwell Reservoir |