| 251 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2011 |
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| 252 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2011 |
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| 253 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk A |
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| 254 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk E |
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| 255 | Environment Agency Kent area : the Seabrook stream : BSc (Hons) Environmental biology placement report |
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| 256 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 257 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 258 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : AQC audit |
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| 259 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : primary audit |
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| 260 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk B |
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| 261 | Further investigation of the pilot borehole at Bean's Lane, Wortham (94/7/912) : September 1994 |
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| 262 | The Warwickshire Avon catchment management plan : consultation report summary (NRA Severn-Trent 44) |
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| 263 | River Avon, Bath : aesthetic study of riverbanks through the urban area of Bath : final report |
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| 264 | Annual review of the Colne, Upper Lee, North London and Roding, Beam and Ingerbourne catchments |
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| 265 | An investigation into the water quality of a treated effluent from Hambleton Dairy, Todber, Dorset |
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| 266 | Old Bedford incorporating the Middle Level and Ouse Washes : consultation report - May 1997 |
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| 267 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
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| 268 | Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999 |
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| 269 | Nutrient export modelling on the River Bure, Norfolk : progress report 2 : June-July 1995 |
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| 270 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
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| 271 | An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report |
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| 272 | The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria |
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| 273 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
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| 274 | Catchment management plans : protecting and enhancing the water environment in an integrated manner |
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| 275 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
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