| 326 | Less sensitive areas and candidate high natural dispersion areas in the North West region |
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| 327 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 328 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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| 329 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 330 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 331 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 332 | The Impact Of Grazing And Upland Management On Erosion And Runoff: Additional Information |
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| 333 | The effect of ferric dosing of lakes on benthic invertebrates : first year report |
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| 334 | The hydrological effects of demand management : project definition stage report : 28th May 1996 |
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| 335 | Improved monitoring for surface water quality : the development of a manual of best practice |
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| 336 | Use Of Pattern Recognition To Identify The Source Of An Oil Spill On An Inland Water |
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| 337 | Evaluating the impact of groundwater abstraction on key conservation sites. Stage 1 reports for AMP3 |
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| 338 | Report on the By Brook low flow investigations : October 2001 : volume 1 : report |
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| 339 | Demand for irrigation water (413/1/A) : progress report for the period August 1992 to January 1993 |
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| 340 | Future water resources in the Thames Region : a strategy for sustainable management : summary document |
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| 341 | Future water resources in the Thames Region : a strategy for sustainable management. June 1994 |
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| 342 | Groundwater management in the North West: efficiency review and business plan: certificate in management |
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| 343 | Environmental impact assessment in relation to water resources authorisations : guidance on the requirements and procedures |
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| 344 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 345 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 346 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : AQC audit |
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| 347 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : primary audit |
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| 348 | Further investigation of the pilot borehole at Bean's Lane, Wortham (94/7/912) : September 1994 |
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| 349 | Saving water : the NRA's approach to water conservation and demand management : a consultation report |
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| 350 | The Somerset Levels and Moors : water level management and nature conservation : consultation paper |
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