| 251 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2013 |
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| 252 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk B |
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| 253 | Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft |
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| 254 | Guidance on the Development of Typology and Classification Systems for Transitional and Coastal Waters |
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| 255 | Review of Lake Benthic Macro-invertebrate Sampling Methods and Strategy for the Water Framework Directive |
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| 256 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk C |
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| 257 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 258 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk E |
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| 259 | National marine baseline survey 1995 : littoral cell 7 : Lands End to the Severn Estuary |
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| 260 | A Proposed Scheme To Ensure The Quality Of Data Generated By Laboratories Undertaking Regulatory Ecotoxicological Testing |
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| 261 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk F |
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| 262 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |
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| 263 | National marine baseline survey 1995 : littoral cell 4 : the Thames to Selsey Bill |
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| 264 | Distribution of Macroinvertebrates in English and Welsh Rivers based on the 1995 Survey |
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| 265 | The disposal of sheep dip waste (R and D Report 11) : effects on water quality |
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| 266 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
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| 267 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
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| 268 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 269 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk M |
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| 270 | YSI, turbidity and discharge data for the Wensum Demonstration Test Catchment's monitoring kiosk M in 2014 |
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| 271 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2012 |
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| 272 | A report on water quality issues within the Midford Brook catchment - June 1996 |
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| 273 | National marine baseline survey 1995 : littoral cell 11 : Great Orme to the Solway Firth |
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| 274 | Investigation into the frequency of storm overflow operation at Bradworthy sewage treatment works (1996) |
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| 275 | Microbiological examination of coastal waters in the North West : summary of results 1998 |
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