| 101 | Demand for irrigation water (413/1/A) : progress report for the period August 1992 to January 1993 |
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| 102 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
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| 103 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 104 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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| 105 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 106 | Groundwater pollution : evaluation of the extent and character of groundwater pollution from point sources in England and Wales |
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| 107 | An audit of performance in the analysis of biological samples in 2000. Environment Agency : AQC audit : C00158/11 |
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| 108 | Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000 |
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| 109 | An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10 |
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| 110 | The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392) |
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| 111 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
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| 112 | Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000 |
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| 113 | Water resources for the future : a strategy for Wales (Bilingual) : Adnoddau dwr ar gyfer y dyfodol (Bilingual) |
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| 114 | Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales |
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| 115 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
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| 116 | NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992 |
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| 117 | The Menai Strait catchment management plan : action plan (bilingual) : Cynllun Rheoli Dalgylch Afon Menai; 1995 Cynllun Gweithredu |
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| 118 | Report for Welsh Region on selected flood defence schemes and the development of a standard methodology for risk assessment |
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| 119 | Groundwater vulnerability of England and Wales : policy and practice for the protection of groundwater : Scale : 1 : 1 000 000 |
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| 120 | List of R and D outputs September 1989 to September 1995 : the National Rivers Authority's R and D programme |
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| 121 | The River Taf catchment management plan : action plan 1995 (bilingual) : Cynllun rheoli dalgylch Afon Taf : cynllun gweithredu 1995 |
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| 122 | Algal growth in the impounded waters of a proposed barrage at Cardiff Bay : prediction using 1989 data |
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| 123 | Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report [external version] |
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| 124 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 15 8/24 |
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| 125 | A report of the conservation and recreation market testing project on : conservation operational advice, conservation collaborative projects, recreational collaborative projects, landscape assessment |
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