51 | Pesticides in the aquatic environment : regional data appendix : prepared by the National Centre for Toxic and Persistent Substances (TAPS) |
52 | Sustainable water resources for the future : values and challenges : consultation document for the Environment Agency's water resources strategies |
53 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
54 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
55 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
56 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
57 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
58 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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59 | Landfill and the water environment : NRA position statement |
60 | Charging for discharges scheme : guidance to the agricultural industry |
61 | Snapshots of the environment : integrated river basin management |
62 | Water from the River Dee : a working partnership |
63 | River quality in England and Wales : a report of the 1990 survey |
64 | Snapshots of the environment : understanding coastal water quality |
65 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
66 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
67 | Snapshots of the environment : managing our freshwater fisheries |
68 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
69 | Contribution of small streams to potential fish production in the Conwy catchment |
70 | Policy and practice for the protection of floodplains |
71 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
72 | Pesticides in the aquatic environment 1997 : executive summary |
73 | Snapshots of the environment : a new environmental approach |
74 | The utilisation of stick-pile otter holts in south east Wales |
75 | The River Tywi catchment management plan : action plan (bilingual) |