| 251 | Report on the By Brook low flow investigations : October 2001 : volume 2 : (figures, maps and appendices) |
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| 252 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 253 | A change to your licence and the environment : key facts about Anglian region |
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| 254 | Scope for growth and levels of contaminants in mussels from the Wash. Phase 2 |
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| 255 | A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997) |
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| 256 | The environmental economy of England's northwest : a driver for economic and social progress : executive summary |
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| 257 | An audit of performance in the processing of macro-invertebrate samples in 1992 |
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| 258 | The hydrological effects of demand management : project definition stage report : 28th May 1996 |
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| 259 | River Teign corridor survey : prepared by Ecologue for the National Rivers Authority (South West Region) |
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| 260 | Report on the By Brook low flow investigations : October 2001 : volume 1 : report |
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| 261 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
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| 262 | Impact assessment of Meldon quarry on water quality in the West Okement river |
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| 263 | Environmental protection - the waste management licensing regulations 1994 : amended and consolidated. Version 5 |
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| 264 | River Avon, Bath : aesthetic study of riverbanks through the urban area of Bath : final report |
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| 265 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 266 | River Wissey investigations : linking hydrology and ecology : summary of a recommendations for the River Wissey (OI/526) |
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| 267 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) : executive summary (OI/420/9/A) |
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| 268 | Investigation of tecnazene contamination in the Chyandour Brook west Cornwall during spring 1990 |
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| 269 | Groundwater management in the North West: efficiency review and business plan: certificate in management |
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| 270 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
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| 271 | Striking the right balance : Somerset Levels and Moors water level management strategy review |
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| 272 | The Redgrave and Lopham Fens alleviation scheme : impact of options study : report to NRA Anglian Region |
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| 273 | Future water resources in the Thames Region : a strategy for sustainable management. June 1994 |
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| 274 | Devon area internal report - further investigations into pipe discharges in the Lower Teign estuary |
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| 275 | Policy and practice for the protection of groundwater : North West region : 2nd edition, 1995 |
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