101 | 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 |
102 | A review of factors affecting the abundance and catch of spring salmon fom the River Wye and elsewhere, and proposals for stock maintenance and enhancement |
103 | 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 |
104 | An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents |
105 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
106 | Economic evaluation of inland fisheries: The economic impact of freshwater angling in England and Wales |
107 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |
108 | The results of Tawe barrage post-impoundment salmon and sea trout telemetry study 1992 |
109 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
110 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
111 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
112 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
113 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
114 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
115 | Biological characteristics and exploitation of sea trout in the River Tywi during 1989 |
116 | Demand for irrigation water (413/1/A) : progress report for the period August 1992 to January 1993 |
117 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
118 | Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses |
119 | The government's policy for a public regulatory body in a privatised water industry |
120 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
121 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
122 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
123 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
124 | Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales |
125 | Digital groundwater vulnerability maps : 1 : 100,000 series. Policy and practice for the protection of groundwater |