| 151 | Pesticides 1998 : a summary of monitoring of the aquatic environment in England and Wales |
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| 152 | The environmental economy of England's northwest : a driver for economic and social progress : executive summary |
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| 153 | Improved monitoring for surface water quality : the development of a manual of best practice |
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| 154 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 155 | Economic evaluation of inland fisheries: The economic impact of freshwater angling in England and Wales |
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| 156 | Demand for irrigation water (413/1/A) : progress report for the period August 1992 to January 1993 |
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| 157 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
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| 158 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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| 159 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 160 | Survey of physical characteristics of salmon spawning riffles in the river North Tyne
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| 161 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 162 | Darwell Transfer Scheme. Final Report Part III. Water quality in the Darwell Reservoir |
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| 163 | Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft |
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| 164 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 165 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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| 166 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
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| 167 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
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| 168 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 169 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
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| 170 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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| 171 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 172 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 173 | The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T) |
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| 174 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 175 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
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