| 4251 | Assessing the impact of sewage effluent disposal on groundwater (phase 2): final report |
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| 4252 | Valuing Water Use in Scotland and Northern Ireland for WFD Implementation Purposes |
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| 4253 | Contracts Department (National Rivers Authority) |
|---|
| 4254 | Determination of Metal Background Reference Concentrations: Feasibility Study |
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| 4255 | The NRA severn-thames transfer project: an assessment of the effect of mixing of source waters on the chemical composition |
|---|
| 4256 | An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment |
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| 4257 | Taw/Torridge Estuary catchment management plan : consultation report : August 1993 |
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| 4258 | Waterways Breeding Bird Survey Pilot Study 1998: Adaptation of BBS Census Methods to Rivers and Canals |
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| 4259 | The Lowermoor environment report |
|---|
| 4260 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
|---|
| 4261 | River Irwell catchment management plan : water quality supplement |
|---|
| 4262 | Switch mechanisms between alternative stable states in freshwater communities (01/574/1/A) |
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| 4263 | River habitats in England and Wales : a national overview : river habitat survey report no 1 |
|---|
| 4264 | Effects of Canoeing on Fish Stocks and Angling |
|---|
| 4265 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
|---|
| 4266 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
|---|
| 4267 | A Review of Grayling Ecology, Status and Management Practice Recommendations for Future Managemetn in England and Wales |
|---|
| 4268 | Guidelines on statutory returns : Freshwater Fish Directive |
|---|
| 4269 | Teddington flow survey 1989 |
|---|
| 4270 | Assessing the impact of dewatering on water resources |
|---|
| 4271 | The use and design of oil separators in surface water drainage systems |
|---|
| 4272 | The utilisation of stick-pile otter holts in south east Wales |
|---|
| 4273 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
|---|
| 4274 | Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met |
|---|
| 4275 | River Usk barrage position statement, 4th August 1993 |
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