| 126 | National Groundwater and Contaminated Land Centre annual report 1997-1998 |
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| 127 | National Groundwater and Contaminated Land Centre annual report 1999/2000 |
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| 128 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
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| 129 | Demands and resources of water undertakers in England and Wales : preliminary report under Section 143(2)(a) Water Act 1989 |
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| 130 | Sewage treatment works remedial strategy : phase 2 report |
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| 131 | Flood defence law 1992 |
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| 132 | Taff catchment management plan : consultation report : April 1995 |
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| 133 | The quality of rivers in England and Wales (1990 to 1995) |
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| 134 | Review of low velocity measurement techniques (280/1/A) |
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| 135 | The investigation of the Taff litter problem : report no. PL/EAE/89/2 |
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| 136 | River quality : 1993 |
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| 137 | National marine baseline survey manual Report No NC/mar/006 |
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| 138 | Wiser, sustainable use of natural resources : a framework for change : July 2001 |
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| 139 | Saving water : the NRA's approach to water conservation and demand management : a consultation report |
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| 140 | NRA policy implementation guidance notes (PIGN) |
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| 141 | Water resources development strategy : a discussion document |
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| 142 | Conwy fisheries monitoring programme : annual report 1990 |
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| 143 | Water resource planning : strategic options : inception report : May 1991 |
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| 144 | Water pollution incidents in England and Wales 1994 : report summary |
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| 145 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
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| 146 | Rhymney catchment management plan : consultation report summary January 1996 (bilingual) : Cynnlun rheoli dalgylch Rhymni : crynodeb o'r adroddiad ymgynghorol |
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| 147 | NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992 |
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| 148 | Hydropower developments and the National Rivers Authority |
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| 149 | Conwy catchment management plan : water quality assessment technical memorandum |
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| 150 | Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996 |
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