4151 | Valuing Water Use in Scotland and Northern Ireland for WFD Implementation Purposes |
4152 | Contracts Department (National Rivers Authority) |
4153 | Determination of Metal Background Reference Concentrations: Feasibility Study |
4154 | The NRA severn-thames transfer project: an assessment of the effect of mixing of source waters on the chemical composition |
4155 | Taw/Torridge Estuary catchment management plan : consultation report : August 1993 |
4156 | The Lowermoor environment report |
4157 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
4158 | River Irwell catchment management plan : water quality supplement |
4159 | Switch mechanisms between alternative stable states in freshwater communities (01/574/1/A) |
4160 | Effects of Canoeing on Fish Stocks and Angling |
4161 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
4162 | A Review of Grayling Ecology, Status and Management Practice Recommendations for Future Managemetn in England and Wales |
4163 | Guidelines on statutory returns : Freshwater Fish Directive |
4164 | Teddington flow survey 1989 |
4165 | Assessing the impact of dewatering on water resources |
4166 | The use and design of oil separators in surface water drainage systems |
4167 | The utilisation of stick-pile otter holts in south east Wales |
4168 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
4169 | Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met |
4170 | River Usk barrage position statement, 4th August 1993 |
4171 | UK Sewage Sludge Survey |
4172 | Substitute Liquid Fuels Used In Cement Kilns - Life Cycle Analysis |
4173 | Cley sea defences |
4174 | Environmental pilot audit : National Rivers Authority Anglian region central area : Brampton Huntingdon |
4175 | Improving the Environment Agency's contribution to wetland bird populations |