| 76 | Quality audit of biological samples for the 1990 river quality survey |
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| 77 | The quality of rivers in England and Wales (1990 to 1995) |
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| 78 | Water resources development strategy : the Resplan Model. Supplementary report no. 7 |
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| 79 | Policy and practice for the protection of groundwater |
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| 80 | The River Dee catchment management plan : consultation report : June 1994 |
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| 81 | Policy and practice for the protection of groundwater |
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| 82 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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| 83 | Method for assessing the heritage value of net fisheries |
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| 84 | Factors affecting the recruitment of riverine coarse fish: phase 3 |
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| 85 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 86 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
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| 87 | 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 |
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| 88 | 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 |
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| 89 | 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 |
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| 90 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2002 : The Environment Agency (CEH Report Ref: C00158/31) |
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| 91 | Thames Environment 21. The Environment Agency strategy for land-use planning in Thames Region |
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| 92 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |
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| 93 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
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| 94 | Pesticides 1998 : a summary of monitoring of the aquatic environment in England and Wales |
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| 95 | Survey of physical characteristics of salmon spawning riffles in the river North Tyne
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| 96 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 97 | 1966 the original team approaching Esthwaite Water to practice sampling from a boat |
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| 98 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 99 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 100 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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