| 251 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
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| 252 | National marine baseline survey 1995 : littoral cell 2 : Flamborough Head to the Wash |
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| 253 | National marine baseline survey 1995 : littoral cell 11 : Great Orme to the Solway Firth |
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| 254 | National marine baseline survey 1995 : littoral cell 7 : Lands End to the Severn Estuary |
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| 255 | Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report |
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| 256 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) : executive summary (OI/420/9/A) |
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| 257 | Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water |
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| 258 | Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd |
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| 259 | The Redgrave and Lopham Fens alleviation scheme : impact of options study : report to NRA Anglian Region |
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| 260 | Report on the By Brook low flow investigations : October 2001 : volume 2 : (figures, maps and appendices) |
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| 261 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 262 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
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| 263 | Devon area internal report - further investigations into pipe discharges in the Lower Teign estuary |
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| 264 | Policy and practice for the protection of groundwater : North West region : 2nd edition, 1995 |
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| 265 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 266 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
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| 267 | Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis) |
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| 268 | Striking the right balance : Somerset Levels and Moors water level management strategy review |
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| 269 | Investigation of tecnazene contamination in the Chyandour Brook west Cornwall during spring 1990 |
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| 270 | A change to your licence and the environment : key facts about Anglian region |
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| 271 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
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| 272 | Review of flood defence practices on the Somerset Levels and Moors : document 3 : maps and figures |
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| 273 | Future foundations : building a better South West : a sustainable construction charter for the region |
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| 274 | The Somerset Levels and Moors : water level management and nature conservation : consultation paper |
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| 275 | River Wissey investigations : linking hydrology and ecology : summary of a recommendations for the River Wissey (OI/526) |
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